Multiwavelength emission of the gamma-ray binary LS I
|
|
- Ariel Holland
- 5 years ago
- Views:
Transcription
1 Multiwavelength emission of the gamma-ray binary LS I Benito Marcote Joint Institute for VLBI ERIC (JIVE, The Netherlands) 14 June 2017 Multifrequency Behavior of High Energy Cosmic Sources
2 High-energy binary systems High-Energy (above 1 GeV) sky from Fermi/LAT Binary systems: High-Mass X-ray binaries, Colliding Wind Binaries, Gamma-Ray Binaries 2
3 High-energy binary systems Pulsar Wind Nebula Blazar/AGN Isolated Pulsar Unidentified Starburst Galaxy Star Forming Region Supernova Remnant Binary System Globular Cluster Very High-Energy ( TeV) sky from Cherenkov Telescopes High-Mass X-ray binaries, Colliding Wind Binaries, Gamma-Ray Binaries 2
4 Gamma-ray binaries Massive star and compact object Non-thermal SED dominated by γ-rays Only six systems are known to date: System Main star P/ days LS 5039 O6.5 V 3.9 LMC P3 O5 III FGL J O6 V 16.6 LS I B0 Ve 26.5 HESS J B0 Vpe PSR B O9.5 Ve Only in PSR B we know the nature of the compact object: NS Orbital motion Wind standoff Star Pulsar Zabalza et al. (2012) V. Zabalza et al.: GeV-TeV emiss Coriolis turnover Shocked pulsar wind Shocked stellar wind Fig. 1. Sketch of the proposed scenario at the periastron of a close-orbit system similar to LS5039. The region of the CD where significant turbulence, and therefore wind mixing, are expected to take place is indicated with a wavy line. The red regions indicate the two proposed emitter locations. off tio wh em 200 an pro rea de em sta the the em orb mo thi the et a of wh bu ity ave lin ula bu 3
5 Gamma-ray binaries Massive star and compact object Non-thermal SED dominated by γ-rays Only six systems are known to date: System Main star P/ days LS 5039 O6.5 V 3.9 LMC P3 O5 III FGL J O6 V 16.6 LS I B0 Ve 26.5 HESS J B0 Vpe PSR B O9.5 Ve Only in PSR B we know the nature of the compact object: NS Orbital motion Wind standoff Star Pulsar Zabalza et al. (2012) V. Zabalza et al.: GeV-TeV emiss Coriolis turnover Shocked pulsar wind Shocked stellar wind Fig. 1. Sketch of the proposed scenario at the periastron of a close-orbit system similar to LS5039. The region of the CD where significant turbulence, and therefore wind mixing, are expected to take place is indicated with a wavy line. The red regions indicate the two proposed emitter locations. off tio wh em 200 an pro rea de em sta the the em orb mo thi the et a of wh bu ity ave lin ula bu 3
6 The Gamma-Ray Binary LS I B0 Ve star (12.5 ± 2.5 M ) d = 2.0 ± 0.2 kpc e = 0.72 ± 0.15 S 2.2 GHz/ mjy Radio P orb = ± d P super = 1667 ± 8 d Frail & Hjellming (1991), Casares et al. (2005), Gregory (2002) F kev erg cm 2 s X-rays F0.1 1 GeV 10 6 cm 2 s GeV F>1 TeV cm 2 s TeV φorb (P = d, JD0 = ) 4
7 Superorbital modulation Superorbital modulation of the amplitude & phases of these outbursts with P so d ( 4.4 yr) 432 GREGORY 1990A&A P Paredes et al. (1990) Orbital Phase Orbital Phase P 2 Cycles Gregory (2002) Observed from radio to TeV a b mjy mjy ( tru res pr tro in th an ac sec pr sa or ta th tio me JD th as 5 th is
8 Microquasar or non-accreting pulsar wind? Orbital motion Wind standoff Star Pulsar V. Zabalza et al.: GeV-TeV emissio Coriolis turnover Shocked pulsar wind Shocked stellar wind Fig. 1. Sketch of the proposed scenario at the periastron of a close-orbit system similar to LS5039. The region of the CD where significant turbulence, and therefore wind mixing, are expected to take place is indicated with a wavy line. The red regions indicate the two proposed emitter locations. T off lo tion whic emis 2006 and c prod reach detec emit stand the s the c emis orbit mod this e the c et al. of 0.1 whic but i ity of avera lineulati bulk T locat 6 stella
9 Presence of a precessing jet? The two observed periods can be explained as a beat frequency due to a precessing jet and the orbital motion Massi & Jaron (2013); Massi & Torricelli-Ciamponi (2016) Anti-correlation between X-ray luminosity and photon-index consistent with BH X-ray Binaries (Massi et al. 2017) Jet velocities of β (Jaron et al. 2017) Requires the presence of a black-hole 7
10 Non-accreting pulsar evidences? X-ray spectrum and spectral variability consistent with a rotation-powered pulsar (Chernyakova et al. 2006) Estimation of the mass of the compact object to be: 1.3 M < M < 2.0 M, likely a Neutron Star (Zamanov et al. 2017) Absorption profile derived at X-rays as a function of orbital and superorbital phases. Circumstellar disk disrupted at Φ 0.6 and slowly regenerated (Chernyakova et al. 2017) 8
11 Optical and radio campaigns
12 Optical observations Observations with the robotic Telescope Fabra-ROA Montsec (TFRM): Orbital and superorbital modulation also observed in the optical band Paredes-Fortuny et al. (2015; 2017 in prep) 9
13 Optical observations Coupling between the thermal and non-thermal superorbital variability Periodic changes in the circumstellar disk (Paredes-Fortuny et al. 2015; 2017 in prep) Similar evidences observed at TeV (Ackermann et al. 2013) 10
14 Profile of a single radio outburst Focusing on a single outburst (Strickman et al. 1998): No. 1, 1998 RELATIONSHIP BETWEEN 424 2CG 135]1 AND LSI ] STRICKMAN ET AL. 423 Vol GHz FIG. 4.ÈMultifrequency radio light curves of LSI ] observed with the VLA corresponding to the radio outburst of 1994 JuneÈJuly. Error bars not shown are smaller than the symbol size. from two observations (radio phase 0.2 and 0.42) into the OSSE energy range. Observations by Goldoni & Meregh- OSSE range than was observed. The OSSE integral Ñux from È300 kev during VP 325 is (4.3 ^ 1.1) ] 10~4 photons cm~2 s~1, while the integral of the ASCA best-ðt power-law 10 9 June 94 (0.97) 26 June 94 (0.62) models extrapolated to the same energy range are (1.0 ^ 0.4) ] 10~4 and (0.5 ^ 0.2) ] 10~4 photons 100 cm~2 s~1 for radio phases 0.2 and 0.42 respectively. These are inconsistent at the 2.8 p and 3.4 p levels, assuming that June 94 (0.06) 28 June 94 (0.70) the spectrum does not change (in particular, does not harden100 signiðcantly) from 10 to 300 kev. Since the relatively large OSSE Ðeld of view does not exclude 10 the nearby 12 June QSO 94 (0.09) 0241]622 as a possible 1 July 94 source (0.79) of emission, we have also plotted the result of EXOSAT (2È10 kev) observations 100 of the QSO (Turner & Pounds 1989), corrected for its position in the OSSE collimator response. Note that 10 the15 1.7June photon 94 (0.19) index power-law spectrum 2 July 94 (0.84) used to model the EXOSAT data is consistent with the OSSE result. 100 When we look at an overall view of the spectra from this region, 10 no clear 17 June picture 94 (0.28) emerges. However, 3 July the94 fact (0.88) that OSSE and COMPTEL results fall signiðcantly above an extrapolation 100 of the ASCA spectra and that the OSSE and COMPTEL spectra are consistent with the X-ray spectrum of QSO10 18 June 94 (0.31) 5 July 94 (0.95) 0241]622, lead to the likelihood that at least some, and perhaps a signiðcant amount, of the Ñux observed by 100 both OSSE and COMPTEL might come from the QSO rather than LSI ] Cycle-to-cycle variations in the June 94 (0.35) 7 July 94 (0.02) X-ray emission may also contribute to the observed discrepancy. More contemporaneous X-ray and c-ray data are 100 required to test for the existence of cycle to cycle variability of the LSI ] system and to better study the X-ray June 94 (0.42) 8 July 94 (0.07) period recently reported by Paredes et al. (1997a). Similarly, 0.1 the low 1.0signiÐcance 10.0 of the0.1 OSSE light 1.0 curves10.0 shown in Figure 2 does not allow us to use temporal signatures to associate LSI ] Frequency with the (GHz) OSSE source. We note that the Ñux detected by OSSE is relatively higher during the 1994 April observation, in apparent coincidence with a prominent onset and slow decay of a radio Ñare Flux Density (mjy) FIG. 5.ÈTime evolution of the LSI ] nonthermal radio spectrum during the outburst of 1994 JuneÈJuly. Spectra are labeled according to the dat and radio phase of the observation. 11
15 Low-frequency radio emission of LS I GMRT and LOFAR observations contemporaneous with 15-GHz RT and OVRO ones LOFAR 150 MHz GMRT 150 MHz OVRO 15 GHz S ν/mjy φorb (Porb = d, JD0 = ) Marcote et al. (2016) Both campaigns at different superorbital phase. Cannot be compared! 12
16 Low-frequency radio emission of LS I Absorption process? Free-free abs: v FFA = 700 ± 200 km s 1 Synchrotron self-absorption: v SSA = ± 140 km s 1 Wind velocity ± 500 km s 1 Marcote et al. (2016) 13
17 Conclusions LS I remains as a challenging gamma-ray binary Many clues suggest the presence of a neutron star The optical and non-thermal correlation suggest a common origin Superorbital modulation dominated by perturbations of the circumstellar disk? The low-frequency turnover constrains the conditions on the region A more detailed low-frequency radio campaign is ongoing (spectrum, variability along the orbit) 14
18 Thank you! 14
Gamma-ray binaries: from low frequencies to high resolution
Gamma-ray binaries: from low frequencies to high resolution Benito Marcote PhD Student October 15, 2014 Gamma-Ray Binaries Binary systems which host a compact object orbiting a high mass star that have
More informationStudies on high-energy binary sources through radio observations. Benito Marcote
Studies on high-energy binary sources through radio observations Benito Marcote ASTRON November 3, 2015 Introduction The gamma-ray sky Pulsar Wind Nebula Blazar/AGN Isolated Pulsar Unidentified Starburst
More informationVariable Very Low Frequency Emission from the Gamma-Ray Binary LS I
Variable Very Low Frequency Emission from the Gamma-Ray Binary LS I +61 33 Benito Marcote In collaboration with M Ribó, J M Paredes (UB), C H Ishwara-Chandra (GMRT), J Swinbank, J Broderick, S Markoff,
More informationEvidence of coupling between the thermal and nonthermal emission in the gamma-ray binary LS I through optical observations
Evidence of coupling between the thermal and nonthermal emission in the gamma-ray binary LS I +61 303 through optical observations X. Paredes-Fortuny, M. Ribo, V. Bosch-Ramon, J. Casares, O. Fors, J. Nu
More informationStellar Binary Systems and CTA. Guillaume Dubus Laboratoire d Astrophysique de Grenoble
Stellar Binary Systems and CTA Guillaume Dubus Laboratoire d Astrophysique de Grenoble Barcelona Cherenkov Telescope Array Meeting, 24-25 January 2008 X-ray binaries picture by H. Spruit relativistic outflow
More information3D Dynamical Modeling of the Gamma-ray Binary LS CTA Japan WS 2013 (September 3-4)
3D Dynamical Modeling of the Gamma-ray Binary LS 5039 1 Outline Introduction to the VHE gamma-ray binaries LS 5039: Previous results LS 5039: 3D SPH simulations Concluding remarks 2 Introduction to the
More informationOn the location and properties of the GeV and TeV emitters of LS 5039
On the location and properties of the GeV and TeV emitters of LS 5039 Víctor Zabalza Max-Planck Institut für Kernphysik, Heidelberg April 17, 2013 Workshop on Variable Galactic Gamma-Ray Sources Víctor
More informationGAMMA-RAYS FROM MASSIVE BINARIES
GAMMA-RAYS FROM MASSIVE BINARIES W lodek Bednarek Department of Experimental Physics, University of Lódź, Poland 1. Sources of TeV gamma-rays PSR 1259+63/SS2883 - (HESS) LS 5039 - (HESS) LSI 303 +61 o
More informationThe Gamma-ray Sky with ASTROGAM GAMMA-RAY BINARIES. Second Astrogam Workshop Paris, March Josep M. Paredes
The Gamma-ray Sky with ASTROGAM GAMMA-RAY BINARIES Second Astrogam Workshop Paris, 26-27 March 2015 Josep M. Paredes Binary systems with HE and/or VHE gamma-ray emission Microquasars: Accreting XRBs with
More informationGamma-ray binaries as pulsars spectral & variability behaviour Guillaume Dubus. Laboratoire d Astrophysique de Grenoble UMR 5571 UJF / CNRS
Gamma-ray binaries as pulsars spectral & variability behaviour Guillaume Dubus Laboratoire d Astrophysique de Grenoble UMR 5571 UJF / CNRS Image: Mirabel 2006 1 Pulsars & massive stars Young pulsars, magnetic
More informationUNVEILING THE SUPER-ORBITAL MODULATION OF LS I IN X-RAYS!
UNVEILING THE SUPER-ORBITAL MODULATION OF LS I +61 303 IN X-RAYS! Jian Li (Institute of High Energy Physics, Chinese Academy of Sciences Institut de Ciencies de l Espai (IEEC-CSIC) ) M. Chernyakova (Dublin
More informationDiscovery of a New Gamma-Ray Binary: 1FGL J
Discovery of a New Gamma-Ray Binary: 1FGL J1018.6-5856 Robin Corbet (UMBC/NASA GSFC) on behalf of the Fermi-LAT collaboration, & M.J. Coe, P.G. Edwards, M.D. Filipovic, J.L. Payne, J. Stevens, M.A.P. Torres
More informationVLBI structure of PSR B /LS2883 during the 2007 and 2010 periastron passages
VLBI structure of PSR B1259-63/LS2883 during the 2007 and 2010 periastron passages Javier Moldón Marc Ribó Josep M. Paredes Simon Johnston, Ryan Shannon (ATNF -CSIRO) Adam Deller (NRAO/Berkeley) High Energy
More informationmicroquasars and binary pulsar systems
Josep M. Paredes Gamma-ray binaries: microquasars and binary pulsar systems SciNeGHE 2010 8th Workshop on Science with the New Generation of High Energy Gamma-ray Experiments Trieste, September 8th - 10th
More information(X-ray) binaries in γ-rays
(X-ray) binaries in γ-rays Guillaume Dubus Understanding relativistic jets, Kraków 2011 Institut de Planétologie et d Astrophysique de Grenoble Variable galactic γ-ray sources gamma-ray binaries O/Be +
More informationGAMMA-RAY EMISSION FROM BINARY SYSTEMS
GAMMA-RAY EMISSION FROM BINARY SYSTEMS 13th AGILE Science Workshop "AGILE: 8 and counting May 25-26, 2015 ASI, Rome Josep M. Paredes Binary systems with HE and/or VHE gamma-ray emission Gamma-ray binaries:
More informationVHE gamma-ray emission from binary systems observed with the MAGIC telescopes
VHE gamma-ray emission from binary systems observed with the MAGIC telescopes Alicia López Oramas (IAC) O. Blanch, E. de Oña Wilhelmi, A. Fernández-Barral, D. Hadasch, J. Herrera, E. Moretti, P. Munar-Adrover,
More informationarxiv:astro-ph/ v1 25 Nov 1996
A&A manuscript no. (will be inserted by hand later) Your thesaurus codes are: missing; you have not inserted them ASTRONOMY AND ASTROPHYSICS 10.10.1995 Monitoring the Gamma-Ray Source 2CG 135+1 and the
More informationJets and outflows from microquasars and pulsar binaries and their emission Josep M. Paredes
Jets and outflows from microquasars and pulsar binaries and their emission Josep M. Paredes ALMA/NAASC 2012 Workshop Outflows, Winds and Jets: From Young Stars to Supermassive Black Holes Charlottesville,
More informationPropagation of very high energy γ-rays inside massive binaries LS 5039 and LSI
Mon. Not. R. Astron. Soc. 368, 579 591 (2006) doi:10.1111/j.1365-2966.2006.10121.x Propagation of very high energy γ-rays inside massive binaries LS 5039 and LSI +61 303 W. Bednarek Department of Experimental
More informationExploring the powering source of the TeV X-ray binary LS 5039
Exploring the powering source of the TeV X-ray binary LS 5039 Javier Moldón Marc Ribó Josep Maria Paredes Josep Martí (Univ. Jaén) Maria Massi (MPIfR) 9th European VLBI Network Symposium Bologna, Italy
More informationPulsar Wind Nebulae as seen by Fermi-Large Area Telescope
Pulsar Wind Nebulae as seen by Fermi-Large Area Telescope Marie-Hélène Grondin Centre d'etudes Nucléaires de Bordeaux- Gradignan SNR/PWN Workshop Montpellier, 2010 June 1 th M.-H. Grondin, SNR/PWN Wokshop,
More informationProbing the Pulsar Wind in the TeV Binary System
Probing the Pulsar Wind in the TeV Binary System -PSR B1259-63/SS2883- Jumpei Takata (University of Hong Kong) Ronald Taam (TIARA, Taiwan) 1 Outline 1, Introduction -TeV binaries -Fermi observation -PSR
More informationOn the physics of colliding stellar-pulsar winds
On the physics of colliding stellar-pulsar winds Valentí Bosch-Ramon Universitat de Barcelona/ICC Variable Galactic Gamma-Ray Sources (II) Barcelona April 16-18, 2013 Outline 1 Introduction: previous work
More informationOrbital and superorbital variability of LS I at low radio frequencies with GMRT and LOFAR
Orbital and superorbital variability of LS I +61 303 at low radio frequencies with GMRT and LOFAR B. Marcote, M. Ribó, J. M. Paredes, C. H. Ishwara-Chandra, J. D. Swinbank, J. W. Broderick, S. Markoff,
More informationGamma-ray Astrophysics with VERITAS: Exploring the violent Universe
Gamma-ray Astrophysics with VERITAS: Exploring the violent Universe K. Ragan McGill University Soup & Science 11-Jan-2008 Soup & Science Jan. '08 1 How do we know about the Universe? Historically, all
More informationGamma-ray absorption in the massive TeV Binary LS 5039
Gamma-ray absorption in the massive TeV Binary LS 539 Author: Facultat de Física, Universitat de Barcelona, Diagonal 645, 828 Barcelona, Spain. Advisor: Marc Ribó Abstract: The recent detections of binary
More informationSearching for and Characterizing GeV Gamma-ray Binaries from Multiwavelength Observations
Searching for and Characterizing GeV Gamma-ray Binaries from Multiwavelength Observations Robin H.D. Corbet 1, C.C. Cheung 2, M.J. Coe 3, J.B. Coley 1, P. Edwards 4, V. McBride 5, M.V. McSwain 6, J. Stevens
More informationModeling X-ray and gamma-ray emission in the intrabinary shock of pulsar binaries. Hongjun An Roger Romani on behalf of the Fermi-LAT Collaboration
Modeling X-ray and gamma-ray emission in the intrabinary shock of pulsar binaries Hongjun An Roger Romani on behalf of the Fermi-LAT Collaboration Mass of the neutron star in pulsar binaries has been estimated
More informationFermi-Large Area Telescope Observations of Pulsar Wind Nebulae and their associated pulsars
Fermi-Large Area Telescope Observations of Pulsar Wind Nebulae and their associated pulsars Marie-Hélène Grondin CENBG, Bordeaux (France) on behalf of the Fermi-LAT Collaboration and the Pulsar Timing
More information(X-ray) binaries in γ-rays
(X-ray) binaries in γ-rays Guillaume Dubus thanks to B. Cerutti, S. Corbel, R. Corbet, R. Dubois, G. Henri, A. Hill, M. de Naurois, J. Pétri, A. Szostek..., Fermi/LAT & HESS collaborations TIARA workshop
More informationPoS(INTEGRAL 2012)132
Superorbital modulation of X-ray emission from gamma-ray binary LSI +61 303 ab, Andrii Neronov c, Sergey Molkov d, Denys Malyshev e, Alexander Lutovinov d, Guy Pooley f a Dublin City University, Glasnevin,
More informationObserving Galactic Sources at GeV & TeV Energies (A Short Summary)
1 Observing Galactic Sources at GeV & TeV Energies (A Short Summary) Tülün Ergin Univ. of Massachusetts, Amherst Air Cherenkov Telescopes 2 Past IACTs: HEGRA, Whipple, CANGAROO Present/Future IACTs: H.E.S.S.,
More informationHigh Energy Emissions from the PSR /SS2883 Binary System
High Energy Emissions from the PSR1259 63/SS2883 Binary System A. Kawachi, T. Naito and S. Nagataki Institute for Cosmic Ray Research, University of Tokyo, Chiba 277-8582, Japan Faculty of Management Information,
More informationThe γ-ray flares from Cygnus X-3 detected by AGILE
The γ-ray flares from Cygnus X-3 detected by AGILE (INAF-IAPS Roma) on behalf of the AGILE Team AGILE 9th Science Workshop Astrophysics with AGILE: five years of surprise ASDC c/o ESRIN, Frascati, April
More informationGamma-ray observations of millisecond pulsars with the Fermi LAT. Lucas Guillemot, MPIfR Bonn. NS2012 in Bonn 27/02/12.
Gamma-ray observations of millisecond pulsars with the Fermi LAT Lucas Guillemot, MPIfR Bonn guillemo@mpifr-bonn.mpg.de NS2012 in Bonn 27/02/12 The Fermi Gamma-ray Space Telescope Fermi = Large Area Telescope
More informationSources of GeV Photons and the Fermi Results
Sources of GeV Photons and the Fermi Results 1. GeV instrumentation and the GeV sky with the Fermi Gamma-ray Space Telescope 2. First Fermi Catalog of Gamma Ray Sources and the Fermi Pulsar Catalog 3.
More informationRadio Searches for Pulsars in the Galactic Center
Radio Searches for Pulsars in the Galactic Center J.Deneva (GMU, resident at NRL), P.Ray (NRL), S.Hyman (SBC), D.Frail (NRAO), N.Kassim (NRL), M. Kerr (NRL), J.Lazio (JPL) Outline Motivation. Types of
More informationProgress in Pulsar detection
Progress in Pulsar detection With EINSTEIN & EXOSAT: 7 radio pulsars detected in X-rays With ROSAT, ASCA & BSAX: 33 radio pulsars detected in X-rays After ~8 yrs with XMM & Chandra: 81 radio pulsars detected
More informationA Multiwavelength Study of the Gamma-ray Binaries 1FGL J and LMC P3
A Multiwavelength Study of the Gamma-ray Binaries 1FGL J1018.6-5856 and LMC P3 1 Joel B. Coley NASA Postdoctoral Fellow, Mail Code 661, Astroparticle Physics Laboratory NASA Goddard Space Flight Center,
More informationGRB history. Discovered 1967 Vela satellites. classified! Published 1973! Ruderman 1974 Texas: More theories than bursts!
Discovered 1967 Vela satellites classified! Published 1973! GRB history Ruderman 1974 Texas: More theories than bursts! Burst diversity E peak ~ 300 kev Non-thermal spectrum In some thermal contrib. Short
More informationFermi: Highlights of GeV Gamma-ray Astronomy
Fermi: Highlights of GeV Gamma-ray Astronomy Dave Thompson NASA GSFC On behalf of the Fermi Gamma-ray Space Telescope Large Area Telescope Collaboration Neutrino Oscillation Workshop Otranto, Lecce, Italy
More informationA pulsar wind nebula associated with PSR J as the powering source of TeV J
A pulsar wind nebula associated with PSR J2032+4127 as the powering source of TeV J2032+4130 Javier Moldón Netherlands Institute for Radio Astronomy Extreme Astrophysics in an Ever-Changing Universe Crete,
More informationGamma-ray binaries. Guillaume Dubus. HEPRO III, Barcelona 2011 Institut de Planétologie et d Astrophysique de Grenoble
Gamma-ray binaries Guillaume Dubus HEPRO III, Barcelona 2011 Institut de Planétologie et d Astrophysique de Grenoble Gamma-ray binaries O/Be + compact object 4-1200d orbits dominant gamma-ray emission.
More informationGamma-ray binaries: hydrodynamics and high energy emission
Gamma-ray binaries: hydrodynamics and high energy emission Astrid Lamberts University of Wisconsin-Milwaukee Collaborators: Guillaume Dubus (Grenoble, France) - Sébastien Fromang (CEA-Saclay, France) -
More informationThe puzzling emission of γ-ray binaries
Credit: F. Reddy/NASA/GSFC The puzzling emission of γ-ray binaries Guillaume Dubus with special thanks to Benoît Cerutti & Astrid Lamberts Texas symposium, Dallas, dec. 2013 Institut de Planétologie et
More informationBinary systems with accretion onto compact object
Micro-quasars 1 Binary systems with accretion onto compact object Cataclysmic variables X binaries White dwarf Neutron star Black hole Classification based on the mass of the donor star: LOW-MASS X-RAY
More informationH.E.S.S. Unidentified Gamma-ray Sources in a Pulsar Wind Nebula Scenario And HESS J
H.E.S.S. Unidentified Gamma-ray Sources in a Pulsar Wind Nebula Scenario And HESS J1303-631 Matthew Dalton Humboldt University at Berlin For the H.E.S.S. Collaboration TeV Particle Astrophysics, Paris.
More informationStatus of the MAGIC telescopes
SNOWPAC 2010 Status of the MAGIC telescopes Pierre Colin for the MAGIC collaboration Max-Planck-Institut für physik (Munich) Status of the MAGIC telescopes MAGIC-1 MAGIC-2 Outline: Recent results of the
More informationA pulsar wind nebula associated with PSR J as the powering source of TeV J
A pulsar wind nebula associated with PSR J2032+4127 as the powering source of TeV J2032+4130, ASTRON, the Netherlands Institute for Radio Astronomy, and Departament d Astronomia i Meteorologia, Institut
More informationX-ray emission properties vary with spin-down age. Crab-like pulsars (< 10 4 yrs)
X-ray emission properties vary with spin-down age Crab-like pulsars (< 10 4 yrs) X-ray emission properties vary with spin-down age Crab-like pulsars (< 10 4 yrs) Cooling neutron stars ( ~10 5-10 6 yrs)
More informationSIMILARITY AND DIVERSITY OF BLACK HOLE SYSTEMS View from the Very High Energies
SIMILARITY AND DIVERSITY OF BLACK HOLE SYSTEMS View from the Very High Energies 1 Symp. 324, 12-16 September, 2016 Classical view Spinning black hole Accretion disk Collimated jets of particles 2 Looking
More informationA Be-type star with a black hole companion
A Be-type star with a black hole companion Jorge Casares (IAC) I. Negueruela (UA) M. Ribó (UB) I. Ribas (IEEC, CSIC) J.M. Paredes (UB) A. Herrero (IAC) S. Simón-Díaz (IAC) Nature 505 387 (2014; 16 Dec)
More informationDiscovering the colliding wind binary HD 93129A
Discovering the colliding wind binary HD 93129A Benito Marcote PI: P Benaglia J Moldón, E Nelan, M De Becker, S M Dougherty and B S Koribalski EVN Symposium October 10, 2014 Outline 1 Introduction on Colliding
More informationA New View of the High-Energy γ-ray Sky with the Fermi Telescope
A New View of the High-Energy γ-ray Sky with the Fermi Telescope Aurelien Bouvier KIPAC/SLAC, Stanford University On behalf of the Fermi collaboration SNOWPAC, 2010 The Fermi observatory Launch: June 11
More informationAstronomy 422! Lecture 7: The Milky Way Galaxy III!
Astronomy 422 Lecture 7: The Milky Way Galaxy III Key concepts: The supermassive black hole at the center of the Milky Way Radio and X-ray sources Announcements: Test next Tuesday, February 16 Chapters
More informationPERSPECTIVES of HIGH ENERGY NEUTRINO ASTRONOMY. Paolo Lipari Vulcano 27 may 2006
PERSPECTIVES of HIGH ENERGY NEUTRINO ASTRONOMY Paolo Lipari Vulcano 27 may 2006 High Energy Neutrino Astrophysics will CERTAINLY become an essential field in a New Multi-Messenger Astrophysics What is
More informationU UNIVERSITAT DE BARCELONA B
UNIVERSITAT DE BARCELONA Departament d Astronomia i Meteorologia Master in Astrophysics, Particle Physics and Cosmology U UNIVERSITAT DE BARCELONA B Low Frequency Radio Observations of Gamma-Ray Binaries
More informationBlack Holes and Active Galactic Nuclei
Black Holes and Active Galactic Nuclei A black hole is a region of spacetime from which gravity prevents anything, including light, from escaping. The theory of general relativity predicts that a sufficiently
More informationRadio and gamma-ray emission in Faint BL Lacs
AGN X ROMA, 10-13/09/2012 Radio and gamma-ray emission in Faint BL Lacs E. Liuzzo, B. Boccardi, M. Giroletti, G. Giovannini, F. Massaro, M. Orienti, S. Tamburri, C. Casadio 3EG Catalog γ sky EGRET (3EG,
More informationMajor Option C1 Astrophysics. C1 Astrophysics
C1 Astrophysics Course co-ordinator: Julien Devriendt jeg@astro.ox.ac.uk C1 offers a total of ~40 lectures on five themes covering a broad range of topics in contemporary astrophysics. Each theme takes
More informationWhat can Simbol-X do for gamma-ray binaries?
What can Simbol-X do for gamma-ray binaries? Benoit Cerutti, Guillaume Dubus, Gilles Henri, Adam Hill, Anna Szostek To cite this version: Benoit Cerutti, Guillaume Dubus, Gilles Henri, Adam Hill, Anna
More informationDistribution of X-ray binary stars in the Galaxy (RXTE) High-Energy Astrophysics Lecture 8: Accretion and jets in binary stars
High-Energy Astrophysics Lecture 8: Accretion and jets in binary stars Distribution of X-ray binary stars in the Galaxy (RXTE) Robert Laing Primary Compact accreting binary systems Compact star WD NS BH
More informationEXPECTED GAMMA-RAY EMISION FROM X-RAY BINARIES
EXPECTED GAMMA-RAY EMISION FROM X-RAY BINARIES W lodek Bednarek Department of Astrophysics, Lódź, Poland I have to admit I don t know? It seems to me very complicated! I will try to convince you why I
More informationarxiv: v1 [astro-ph.he] 2 Mar 2019
Draft version March 5, 2019 Typeset using LATEX twocolumn style in AASTeX61 HIGH-SPEED EJECTA FROM THE GAMMA-RAY BINARY PSR B1259 63/LS 2883 George G. Pavlov, 1 Jeremy Hare, 2 and Oleg Kargaltsev 2 1 Pennsylvania
More informationHigh-Energy Plasma Astrophysics and Next Generation Gamma-Ray Observatory Cherenkov Telescope Array
High-Energy Plasma Astrophysics and Next Generation Gamma-Ray Observatory Cherenkov Telescope Array FAPESP CUNY Week, New York, November 2018 M82 Star Formation- Clouds-SNRturbulence connection Sun & Stars
More informationCompact Stars. Lecture 4
Compact Stars Lecture 4 X-ray binaries We have talked about the basic structure of accretion disks in X-ray binaries and evolutionary scenarios of low mass and high mass XRBs I will now present the observational
More informationPoS(Extremesky 2011)036
Univ. Complutense of Madrid E-mail: marcos@gae.ucm.es The MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescopes were designed to reach the lowest possible energy threshold using the ground-based
More informationAGILE and Blazars: the Unexpected, the Unprecedented, and the Uncut
AGILE and Blazars: the Unexpected, the Unprecedented, and the Uncut Rome, AGILE γ-ray Symposium 2017.12.12 Stefano Vercellone (INAF-OAB) 1 Rationale A review of the whole set of AGILE results on extra-galactic
More informationMASSIVE STARS IN COLLIDING WIND SYSTEMS: THE HIGH-ENERGY GAMMA-RAY PERSPECTIVE
MASSIVE STARS IN COLLIDING WIND SYSTEMS: THE HIGH-ENERGY GAMMA-RAY PERSPECTIVE Anita Reimer, HEPL & KIPAC, Stanford University Scineghe 2008, Padova, Oct. 2008 Massive Stars......are hot (~3-6 10 4 K),
More informationStellar-Mass Black Holes and Pulsars
Stellar-Mass Black Holes and Pulsars Anthony Rushton Work group 2 leader (ESO ALMA fellow) 2010-06-24 Overview of Work Group 2 Stellar-mass black holes and pulsars Two work group leaders: Anthony Rushton
More informationFermi-LAT and WMAP observations of the SNR Puppis A
Fermi-LAT and WMAP observations of the SNR Puppis A Marie-Hélène Grondin & Marianne Lemoine-Goumard Hewitt, J., Grondin, MH, et al. 2012, ApJ, accepted (arxiv:1210.4474) MODE-SNR-PWN workshop - November
More informationCOMPTEL detection of the variable radio source GT
University of New Hampshire University of New Hampshire Scholars' Repository Space Science Center Institute for the Study of Earth, Oceans, and Space (EOS) 1994 COMPTEL detection of the variable radio
More informationPoS(extremesky2009)023
Université Joseph Fourier - Grenoble 1/CNRS, laboratoire d Astrophysique de Grenoble (LAOG) UMR 5571, BP 53, 38041 Grenoble Cedex 09, France E-mail: adam.hill@obs.ujf-grenoble.fr on behalf of the Fermi-LAT
More informationRecent Observations of Supernova Remnants
1 Recent Observations of Supernova Remnants with VERITAS Tülün Ergin (U. of Massachusetts Amherst, MA) on behalf of the VERITAS Collaboration (http://veritas.sao.arizona.edu) 2 Contents Supernova Remnants
More informationCosmic Explosions. Greg Taylor (UNM ) Astro 421
Cosmic Explosions Greg Taylor (UNM ) Astro 421 1 Cassiopeia A: Supernova Remnant E total ~ 10 46 J 2 An early gamma ray-burst Vela satellite 3 A Gamma Ray Burst Sampler 4 Burst Alert 5 The BeppoSAX Satellite
More informationRadio and X-rays from GRS Close correlations of the third kind
Mem. S.A.It. Vol. 82, 41 c SAIt 211 Memorie della Radio and -rays from GRS 1915+15 - Close correlations of the third kind Ralph Spencer 1 and Anthony Rushton 1,2,3 1 Jodrell Bank Centre for Astrophysics
More informationPDF hosted at the Radboud Repository of the Radboud University Nijmegen
PDF hosted at the Radboud Repository of the Radboud University Nijmegen The following full text is a publisher's version. For additional information about this publication click this link. http://hdl.handle.net/2066/84153
More informationCompact Binaries - 3 ASTR2110 Sarazin
Compact Binaries - 3 ASTR2110 Sarazin Zoology of Binary Stars X-ray Binary Pulsar Spin-Up Accreted material has high angular momentum Spins up neutron star (true of ~all X-ray binary pulsars) Millisecond
More informationVERY HIGH-ENERGY GAMMA-RAY ASTRONOMY
VERY HIGH-ENERGY GAMMA-RAY ASTRONOMY Rene A. Ong Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, CA 90095, U.S.A. Very high-energy (VHE) γ-ray astronomy is an exciting
More informationVHE Gamma-rays from galactic binaries
Mem. S.A.It. Vol. 81, 514 c SAIt 28 Memorie della VHE Gamma-rays from galactic binaries Josep M. Paredes Departament d Astronomia i Meteorologia and Institut de Ciències del Cosmos (ICC), Universitat de
More informationA RADIO SEARCH FOR BLACK HOLES IN THE MILKY WAY GLOBULAR CLUSTER M10
(nrao/aui) LAURA SHISHKOVSKY, J. STRADER, L. CHOMIUK, L. TREMOU (MSU), J. MILLER-JONES, V. TUDOR (CURTIN), T. MACCARONE (TEXAS TECH), G. SIVAKOFF, C. HEINKE (U. ALBERTA) A RADIO SEARCH FOR BLACK HOLES
More informationDiscovery of TeV Gamma-ray Emission Towards Supernova Remnant SNR G Last Updated Tuesday, 30 July :01
Background-subtracted gamma-ray count map of SNR G78.2+2.1 showing the VERITAS detection (VER2019+407). For details, see Figure 1 below. Reference: E. Aliu et al. (The VERITAS Collaboration), Astrophysical
More informationChapter 14. Outline. Neutron Stars and Black Holes. Note that the following lectures include. animations and PowerPoint effects such as
Note that the following lectures include animations and PowerPoint effects such as fly ins and transitions that require you to be in PowerPoint's Slide Show mode (presentation mode). Chapter 14 Neutron
More informationRadio Observations of TeV and GeV emitting Supernova Remnants
Radio Observations of TeV and GeV emitting Supernova Remnants Denis Leahy University of Calgary, Calgary, Alberta, Canada (collaborator Wenwu Tian, National Astronomical Observatories of China) outline
More informationExtended X- ray emission from PSR B /LS 2883 and other gamma- ray binaries
Extended X- ray emission from PSR B1259-63/LS 2883 and other gamma- ray binaries George Pavlov (Pennsylvania State University) Oleg Kargaltsev (George Washington University) Martin Durant (University of
More informationOsservatorio Astronomico di Bologna, 27 Ottobre 2011
Osservatorio Astronomico di Bologna, 27 Ottobre 2011 BASIC PARADIGM: Copious energy output from AGN (10 9-10 13 L Θ ) from accretion of material onto a Supermassive Black Hole SMBH ( 10 6-10 9 M Θ ). AGN
More informationThe High-Energy Interstellar Medium
The High-Energy Interstellar Medium Andy Strong MPE Garching on behalf of Fermi-LAT collaboration Cosmic Ray Interactions: Bridging High and Low Energy Astrophysics Lorentz Centre Workshop March 14-18
More informationGalactic sources in GeV/TeV Astronomy and the new HESS Results
Galactic sources in GeV/TeV Astronomy and the new HESS Results Martin Tluczykont for the HESS Collaboration LLR Ecole Polytechnique Joint Symposium on GeV-TeV Astrophysics in the GLAST Era Stanford, September
More informationExtreme high-energy variability of Markarian 421
Extreme high-energy variability of Markarian 421 Mrk 421 an extreme blazar Previous observations outstanding science issues 2001 Observations by VERITAS/Whipple 10 m 2001 Light Curve Energy spectrum is
More informationHigh-z Blazar SEDs Clues to Evolution in the Early Universe. Hongjun An Roger Romani on behalf of the Fermi-LAT Collaboration
High-z Blazar SEDs Clues to Evolution in the Early Universe Hongjun An Roger Romani on behalf of the Fermi-LAT Collaboration Outline Blazars Blazar emission and spectral energy distribution (SED) models
More informationMULTI-WAVELENGTH OBSERVATIONS OF CYGNUS X-3
MULTI-WAVELENGTH OBSERVATIONS OF CYGNUS X-3 Angelo Varlotta for the VERITAS collaboration Michael McCollough, Wei Cui, Marco Tavani for the AGILE Collaboration, Guy Pooley, Petri Savolainen, Karri Koljonen,
More informationGamma-Ray Astronomy. Astro 129: Chapter 1a
Gamma-Ray Bursts Gamma-Ray Astronomy Gamma rays are photons with energies > 100 kev and are produced by sub-atomic particle interactions. They are absorbed by our atmosphere making observations from satellites
More informationHESS J : A new gamma-ray binary?
HESS J0632+057: A new gamma-ray binary? Joanna Skilton MPIK Jim Hinton, Julia Brucker, M. Pommier, T. Cheung, A. Marcowith, G. Dubus, Y. Gallant, S. Funk, O. Reimer, A. Fiasson, F.A. Aharonian + many more!
More informationExtended X-ray object ejected from the PSR B /LS 2883 binary
Extended X-ray object ejected from the PSR B1259-63/LS 2883 binary Oleg Kargaltsev (George Washington University) George Pavlov (Pennsylvania State University) Jeremy Hare (George Washington University)
More informationParticle Acceleration by Reconnection and VHE emission Around Black Holes and Relativistic Jets
Particle Acceleration by Reconnection and VHE emission Around Black Holes and Relativistic Jets Deciphering the Violent Universe, Playa del Carmen, December 11-15, 2017 Accretion disk coronae Star Formation
More informationGamma-ray emission from nova outbursts
Gamma-ray emission from nova outbursts Margarita Hernanz Institute of Space Sciences - ICE (CSIC-IEEC) Bellaterra (Barcelona), Spain Stella Novae: Past and Future Decades, Cape Town, 4-8/2/2013 M. Hernanz
More informationPulsars ASTR2110 Sarazin. Crab Pulsar in X-rays
Pulsars ASTR2110 Sarazin Crab Pulsar in X-rays Test #2 Monday, November 13, 11-11:50 am Ruffner G006 (classroom) Bring pencils, paper, calculator You may not consult the text, your notes, or any other
More informationRadio counterparts of gamma-ray pulsars
Radio counterparts of gamma-ray pulsars Lucas Guillemot, MPIfR Bonn guillemo@mpifr-bonn.mpg.de on behalf of the Fermi LAT Collaboration IAU Symposium 2012, Beijing 20/08/12 117 gamma-ray pulsars! 41 young
More informationMicroquasars and The Power of Spin
Microquasars and The Power of Spin Ralph Spencer, Tony Rushton with thanks to Mr Tony Blair COST Valencia 2010 1 Overview What are Microquasars? A bit of history A gallery of objects The link to AGN A
More information