Cosmic Ray Anisotropy with Milagro
|
|
- Rosalind Mills
- 5 years ago
- Views:
Transcription
1 Cosmic Ray Anisotropy with Milagro John Pretz For the Milagro Collabora;on TeV Par;cle Astrophysics Conference May 15, 2009
2 Milagro Collabora+on A. Abdo, B. Allen, D. Berley, G. Christopher, T. DeYoung, B.L. Dingus, R.W. Ellsworth, M.M. Gonzalez, J.A. Goodman, C.M. H o f f m a n, P. H u n t e m e y e r, B. Kolterman, C.P. Lansdell, J.T. Linnemann, J.E. McEnery, A.I. Mincer, P. Nemethy, J. Pretz, J.M. Ryan, P.M. Saz Parkinson, A. Shoup, G. Sinnis, A.J. Smith, G.W. S u l l i v a n, D. A. W i l l i a m s, V. Vasileiou, G.B. Yodh
3 Milagro Detector Central Water Pond (80x60 meter) 450 PMTs under 1.5 m water 273 PMTs under 6 m water Outriggers 2.4 meter diameter 1.4 meter tall 175 PMTs in outrigger tanks Water Cherenkov Detector 2600 meters al+tude 4000 m2 pond / m2 outrigger coverage 1700 Hz Trigger Rate 0.4o 1.0o angular resolu+on Sensi+vity 100 GeV 100 TeV Median energy TeV (depending on cuts, weights etc) Operated from
4 Gamma/Hadron Discrimina+on Penetra+ng component of Hadronic air showers illuminates the bowom layer.
5 Gamma/Hadron Discrimina+on Penetra+ng component of Hadronic air showers illuminates the bowom layer.
6 Large Scale Anisotropy Seen by Many Experiments Anisotropy in Tibet Air Shower array data M. Amenomori, et al. Science 314, 439 (2006) Nagashima, K., K. Fujimoto, and R. M. Jacklyn (1998) J.Geophys. Res., 103(A8), 17,429 17,440.
7 Large Scale Anisotropy as Measured by Milagro Abdo et al. ApJ (2009)
8 Milagro Measurement of Large Scale Anisotropy FB Asymmetry Abdo et al. ApJ (2009)
9 Large Scale Anisotropy Frac+onal strength of ~10 3. Observed in sidereal +me. Solar Compton Ge]ng effect observed in UT. Bugs on the windshield effect as me move around the sun Consistent with observa+ons by Tibet, SuperK, IceCube, and others. Indica+ons of +me dependence. Tibet saw no +me dependence between and (M. Amenomori, et al. Science 314, 439 (2006)) Abdo et al. ApJ (2009)
10 Localized Anisotropy Discovered serendipitously when cross checking gammaray search results. Normal gamma ray point source search, neglec+ng gamma ray cuts, applied looking for large sources.
11 Technique for Point Source Searches Background es+ma+on confined to local declina+on strip. Background method used to es+mate background for gammaray source analysis. Assume: Local coordinate distribu+on is stable on short +me scale. Need not assume that the rate is constant in +me. Integra+on +me is 30 o (2hr) Effec+vely this is a High Pass filter
12 Localized Anisotropy Observa+ons No weigh+ng or cu]ng. Map dominated by cosmic rays. Background subtrac+on serves as a high pass filter. 10 o smoothing looks for largeish features. Two regions of excess 15.0σ and 12.7σ. Frac+onal excess of 6x10 4 (4x10 4 ) for region A(B). Seen also by Tibet ASγ PRL 101, (2008)
13 Milagro Cosmic Ray Observa+ons Clear similarity between Milagro observa+ons and ARGO YBJ results. Also seen in Tibet ASγ data S. Vernetto for ARGO-YBJ Collaboration RICAP 2009
14 Milagro Cosmic Ray Observa+ons Gamma ray origin excluded to high confidence. Cosmic ray hypothesis fits well. Appear harder than background cosmic rays with a cutoff at ~10 TeV. Region A coincident with the heliotail PRL 101, (2008)
15 Milagro Cosmic Ray Observa+ons Region A Region B Gamma ray origin excluded to high confidence. Cosmic ray hypothesis fits well. Appear harder than background cosmic rays with a cutoff at ~10 TeV. Region A coincident with the heliotail PRL 101, (2008)
16 What are these features? Heliospheric? Considered by Salva+ and Sacco and found not likely. Neutron produc+on in clump of ISM mawer gathred at the heliotail. Rejected by Drury and Aharonian Nearby Source Gyroradius of 10 TeV proton is in >1µG <0.01 pc. 10 TeV neutron will live for 0.1 pc An effect resul+ng from the summa+on of sources near Earth? Salvati and Sacco. A&A 485, (2008) Drury and Aharonian. Astropart. Phys (2008)
17 Poten+al Nearby Cosmic Ray Considered plausible by those who ve considered it Requires non standard cosmic ray diffusion and a nearby source (Geminga supernova? As liwle as 90 pc away.) Some coherent magne+c structure connec+ng us to the source. Need to understand cosmicray propaga+on bewer. Accelerator From: Salvati and Sacco. A&A 485, (2008)
18 HAWC Improved gamma/hadron discrimina+on Improved energy resolu+on Improved detector stability See the Crab every day See B. Dingus talk on Friday Cosmic ray Gamma ray
19 Conclusions Large Scale Anisotropy firmly established Observed by a number of experiments including Milagro Sugges+ons of +me dependence Localized anisotropy at 5x10 4 level No compelling explana+on. Nearby accelerator? Geminga SNR? Non standard cosmic ray diffusion Local magne+c fields? Cosmic Ray Anisotropy may be quite revealing.
Detection of TeV Gamma-Rays from Extended Sources with Milagro
Detection of TeV Gamma-Rays from Extended Sources with Milagro P. M. Saz Parkinson for the Milagro Collaboration Santa Cruz Institute for Particle Physics, University of California, 1156 High Street, Santa
More informationFermi Summer School Jordan Goodman - University of Maryland AIR SHOWERS. Fermi Summer School - J. Goodman 2017
Fermi Summer School 2017 Jordan Goodman - University of Maryland AIR SHOWERS Fermi Summer School - J. Goodman 2017 1 Cosmic Ray Discovery Physikalische Zeitschrift: The results of these observations seem
More informationmagnetic reconnection as the cause of cosmic ray excess from the heliospheric tail
magnetic reconnection as the cause of cosmic ray excess from the heliospheric tail Paolo Desiati 1,2 & Alexander Lazarian 2 1 IceCube Research Center 2 Department of Astronomy University of Wisconsin -
More informationparticle acceleration in reconnection regions and cosmic ray excess from the heliotail
particle acceleration in reconnection regions and cosmic ray excess from the heliotail Paolo Desiati 1,2 & Alexander Lazarian 2 1 IceCube Research Center 2 Department of Astronomy University of Wisconsin
More informationGalactic Sources with Milagro and HAWC. Jordan Goodman for the HAWC and Milagro Collaborations
Galactic Sources with Milagro and HAWC Jordan Goodman for the HAWC and Milagro Collaborations Snowpack 2010 Milagro and HAWC Milagro was a first generation wide-field gamma-ray telescope: Proposed in 1990
More informationDiffuse TeV emission from the Cygnus region
Diffuse TeV emission from the Cygnus region References: Discovery of TeV gamma-ray emission from the Cygnus region of the Galaxy Abdo et al., astro-ph/0611691 Dissecting the Cygnus region with TeV gamma
More informationHAWC and the cosmic ray quest
HAWC and the cosmic ray quest J.C. Arteaga-Velázquez for the HAWC Collaboration Instituto de Física y Matemáticas, Universidad Michoacana, Mexico Structure of the talk: 1) The HAWC gamma-ray observatory
More informationDiscovery of TeV Gamma-Ray Emission from the Cygnus Region of the Galaxy
SLAC-PUB-12233 astro-ph/0611691 November 2006 Discovery of TeV Gamma-Ray Emission from the Cygnus Region of the Galaxy A. A. Abdo, 1 B. Allen, 2 D. Berley, 3 E. Blaufuss, 3 S. Casanova, 4 C. Chen, 2 D.
More informationSearching for the Origin of Cosmic Rays with IceCube
Searching for the Origin of Cosmic Rays with IceCube Stefan Westerhoff University of Wisconsin-Madison Fall 2010 Physics Seminar Wichita State University September 29, 2010 1 2 3 Outline Cosmic Rays and
More informationCosmic Ray Electrons with CTA. R.D. Parsons
Cosmic Ray Electrons with CTA R.D. Parsons Cosmic Ray Electrons In addi:on to the well known hadronic component of cosmic rays there is a more poorly understood electronic component Has a lower flux than
More informationMeasurement of the CR e+/e- ratio with ground-based instruments
Measurement of the CR e+/e- ratio with ground-based instruments Pierre Colin Max-Planck-Institut für Physik CR Moon shadow MPP retreat - 21 January 2014 Cosmic ray electrons Observation: Above the atmosphere:
More informationMILAGRO. 1 The Milagro detector. SABRINA CASANOVA for THE MILAGRO COLLABORATION. Los Alamos National Laboratory, Los Alamos, NM, 87545, US
SURVEYING THE TEV SKY WITH MILAGRO SABRINA CASANOVA for THE MILAGRO COLLABORATION Los Alamos National Laboratory, Los Alamos, NM, 87545, US Abstract A wide field of view, high duty factor TeV gamma-ray
More informationA MEASUREMENT OF THE SPATIAL DISTRIBUTION OF DIFFUSE TeV GAMMA-RAY EMISSION FROM THE GALACTIC PLANE WITH MILAGRO
The Astrophysical Journal, 688:1078Y1083, 2008 December 1 # 2008. The American Astronomical Society. All rights reserved. Printed in U.S.A. A MEASUREMENT OF THE SPATIAL DISTRIBUTION OF DIFFUSE TeV GAMMA-RAY
More informationThe Origin of the Galactic Cosmic Radiation
The Origin of the Galactic Cosmic Radiation A White Paper submitted to the Stars and Stellar Evolution Science Panel of Astro2010 - The Astronomy and Astrophysics Decadal Survey Corresponding Author: G.
More informationHAWC Observation of Supernova Remnants and Pulsar Wind Nebulae
HAWC Observation of Supernova Remnants and Pulsar Wind Nebulae a, and H. Zhou a for the HAWC Collaboration b a Department of Physics, Michigan Technological University 1400 Townsend Drive, Houghton, MI,
More informationFirst Light with the HAWC Gamma-Ray Observatory
, for the HAWC Collaboration Wisconsin IceCube Particle Astrophysics Center (WIPAC) and Department of Physics, University of Wisconsin Madison, Madison, WI 53706, USA E-mail: westerhoff@wisc.edu The High-Altitude
More informationLessons 19 and 20. Detection of C.R. with energy > TeV Study of the C.R. isotropy/anisotropy Ground based detectors:
Lessons 19 and 20 Detection of C.R. with energy > TeV Study of the C.R. isotropy/anisotropy Ground based detectors: Detection at ground of extensive Air Showers: nature, direction and energy of the primary
More informationReceived 2003 May 2; accepted 2003 June 11
The Astrophysical Journal, 595:803 811, 2003 October 1 # 2003. The American Astronomical Society. All rights reserved. Printed in U.S.A. OBSERVATION OF TeV GAMMA RAYS FROM THE CRAB NEBULA WITH MILAGRO
More informationNuclear Instruments and Methods in Physics Research A
Nuclear Instruments and Methods in Physics Research A 630 (20) 22 27 Contents lists available at ScienceDirect Nuclear Instruments and Methods in Physics Research A journal homepage: www.elsevier.com/locate/nima
More informationSeeing the moon shadow in CRs
Seeing the moon shadow in CRs and using the Earth field as a spectrometer Tibet III Amenomori et al. arxiv:0810.3757 see also ARGO-YBJ results Bartoli et. al, arxiv:1107.4887 Milargo: 100% coverage r owe
More informationThe LHAASO-KM2A detector array and physical expectations. Reporter:Sha Wu Mentor: Huihai He and Songzhan Chen
The LHAASO-KM2A detector array and physical expectations Reporter:Sha Wu Mentor: Huihai He and Songzhan Chen Outline 1. Introduction 2. The KM2A Detector Array 3. Physical Expectations 3.1 Sensitivity
More informationObservations of the Crab Nebula with Early HAWC Data
Observations of the Crab Nebula with Early HAWC Data a for the HAWC Collaboration b a Department of Physics, Pennsylvania State University, 16802 University Park, PA, USA b For a complete author list,
More informationVery High Energy Gamma Ray Astronomy and Cosmic Ray Physics with ARGO-YBJ
Very High Energy Gamma Ray Astronomy and Cosmic Ray Physics with ARGO-YBJ Ivan DE MITRI Dipartimento di Fisica Università di Lecce and Istituto Nazionale di Fisica Nucleare Lecce,, ITALY On behalf of the
More informationHAWC Status & Galactic Science
HAWC Status & Galactic Science HAWC photo from March 2014. Currently 243 of 300 tanks are built, " 192 are filled with water, and 143 are taking data nearly continuously.! Brenda Dingus, LANL US Spokesperson
More informationOn the scientific motivation for a wide field-of-view TeV gamma-ray observatory in the Southern Hemisphere
On the scientific motivation for a wide field-of-view TeV gamma-ray observatory in the Southern Hemisphere for the HAWC collaboration E-mail: miguel@psu.edu Observations of high energy gamma rays are an
More informationHAWC (High Altitude Water Cherenkov) A Wide-Field Gamma-Ray Telescope
HAWC (High Altitude Water Cherenkov) A Wide-Field Gamma-Ray Telescope Los Alamos National Lab Complementarity of TeV Gamma-Ray Detectors Imaging Air Cherenkov Telescopes Extensive Air Shower Arrays IACTs
More informationLatest news from the High Altitude Water Cherenkov Observatory
Journal of Physics: Conference Series PAPER OPEN ACCESS Latest news from the High Altitude Water Cherenkov Observatory To cite this article: A González Muñoz and HAWC Collaboration 2016 J. Phys.: Conf.
More informationFirst year results from the HAWC observatory
First year results from the HAWC observatory Sabrina Casanova for the HAWC Collaboration 1,2,a 1 Institute of Nuclear Physics Krakow, ul.radzikowskiego 152, 31-342 Poland 2 Max Planck Institute for Nuclear
More informationHighlights from ARGO-YBJ
Highlights from ARGO-YBJ G. Di Sciascio INFN Sez. Roma Tor Vergata On behalf of the ARGO-YBJ Collaboration Vulcano Workshop 2010 May 25, 2010 The ARGO-YBJ experiment An unconventional EAS-array exploiting
More informationTeV gamma-ray variability and duty cycle of Mrk 421 as determined by 3 Years of Milagro monitoring
TeV gamma-ray variability and duty cycle of Mrk 421 as determined by 3 Years of Milagro monitoring Barbara Patricelli Magdalena González for the Milagro collaboration Astronomy Institute - UNAM RICAP-13
More informationHAWC: A Next Generation All-Sky VHE Gamma-Ray Telescope
HAWC: A Next Generation All-Sky VHE Gamma-Ray Telescope VHE Astrophysics Energy range 10 GeV 10 TeV Non thermal processes in the universe Highly variable sources Particle acceleration Physics of extreme
More informationMultimessenger test of Hadronic model for Fermi Bubbles Soebur Razzaque! University of Johannesburg
Multimessenger test of Hadronic model for Fermi Bubbles Soebur Razzaque! University of Johannesburg with! Cecilia Lunardini and Lili Yang Multi-messenger Astronomy 2 p π ±# ν# cosmic rays + neutrinos p
More informationMilagro A TeV Observatory for Gamma Ray Bursts
Milagro A TeV Observatory for Gamma Ray Bursts B.L. Dingus and the Milagro Collaboration Los Alamos National Laboratory University of Maryland, University of California Santa Cruz, University of California
More informationAstro2020 Science White Paper Prospects for the detection of synchrotron halos around middle-age pulsars
Astro2020 Science White Paper Prospects for the detection of synchrotron halos around middle-age pulsars Thematic Areas: Planetary Systems Star and Planet Formation Formation and Evolution of Compact Objects
More informationCorrelated GeV TeV Gamma-Ray Emission from Extended Sources in the Cygnus Region
Correlated GeV TeV Gamma-Ray Emission from Extended Sources in the Cygnus Region Michigan Technological University E-mail: bhona@mtu.edu A. Robare Michigan Technological University E-mail: alrobare@mtu.edu
More informationUC Irvine UC Irvine Previously Published Works
UC Irvine UC Irvine Previously Published Works Title Study of the Shadows of the Moon and the Sun with VHE Cosmic Rays Permalink https://escholarship.org/uc/item/7xp0j97v Authors Atkins, R Benbow, W Berley,
More informationHAWC and HAWC-South : TeV all-sky gamma-ray experiments for the northern and southern hemispheres
HAWC and HAWC-South : TeV all-sky gamma-ray experiments for the northern and southern hemispheres Michael DuVernois UW-Madison For the HAWC Collabora:on Brief take on the science HAWC Detector HAWC Preliminary
More informationAous Ahmad Abdo A DISSERTATION. Submitted to Michigan State University in partial fulfillment of the requirements for the degree of
DISCOVERY OF LOCALIZED TEV GAMMA-RAY SOURCES AND DIFFUSE TEV GAMMA-RAY EMISSION FROM THE GALACTIC PLANE WITH MILAGRO USING A NEW BACKGROUND REJECTION TECHNIQUE By Aous Ahmad Abdo A DISSERTATION Submitted
More informationA Large High Altitude Air Shower Observatory : the LHAASO Project
A Large High Altitude Air Shower Observatory : the LHAASO Project Olivier Deligny CNRS/IN2P3 - IPN Orsay on behalf the LHAASO Collaboration Contact Person: Zhen CAO, IHEP Rencontres de Moriond, 9/16 March
More informationarxiv: v1 [astro-ph.im] 14 Aug 2015
Detector considerations for a HAWC southern observatory arxiv:1508.03669v1 [astro-ph.im] 14 Aug 2015 Michael DuVernois for the HAWC Collaboration Department of Physics and Wisconsin IceCube Particle Astrophysics
More informationGalactic diffuse gamma-rays
Galactic diffuse gamma-rays Masaki Mori Department of Physics, College of Science & Engineering, Ritsumeikan University 1 July 31, 2009, Dept. Astronomy, Kyoto University GeV gamma-ray sky by EGRET Compton
More informationCosmic Ray Physics with ARGO-YBJ
Cosmic Ray Physics with ARGO-YBJ Ivan De Mitri University of Salento and Istituto Nazionale di Fisica Nucleare Lecce, Italy On behalf of the ARGO-YBJ Collaboration RICAP-13 Roma International Conference
More informationJustin Vandenbroucke (KIPAC, Stanford / SLAC) for the Fermi LAT collaboration
Measurement of the cosmic ray positron spectrum with the Fermi LAT using the Earth s magnetic field Justin Vandenbroucke (KIPAC, Stanford / SLAC) for the Fermi LAT collaboration International Cosmic Ray
More informationThe Galactic diffuse gamma ray emission in the energy range 30 TeV 3 PeV
The Galactic diffuse gamma ray emission in the energy range 30 TeV 3 PeV Mount Rainier by Will Christiansen Silvia Vernetto & Paolo Lipari 35th ICRC 12-20 July 2017 - Busan - South Korea Gamma ray astronomy
More informationCosmic Ray Physics with ARGO-YBJ
Cosmic Ray Physics with ARGO-YBJ Ivan De Mitri University of Salento and Istituto Nazionale di Fisica Nucleare Lecce, Italy On behalf of the ARGO-YBJ Collaboration 4th Workshop on Air Shower Detection
More informationGamma rays from supernova remnants in clumpy environments.! Stefano Gabici APC, Paris
Gamma rays from supernova remnants in clumpy environments!! Stefano Gabici APC, Paris Overview of the talk Galactic cosmic rays Gamma rays from supernova remnants Hadronic or leptonic? The role of gas
More informationA-Exam: e + e Cosmic Rays and the Fermi Large Array Telescope
A-Exam: e + e Cosmic Rays and the Fermi Large Array Telescope Walter Hopkins Physics Department, Cornell University. The Fermi Large Area Telescope is a particle detector in space with an effective collecting
More informationRecent highlights from VERITAS
Recent highlights from VERITAS K. Ragan McGill University RICAP 2011, Rome, 26-May-2011 K. Ragan VERITAS RICAP '11 1 Outline Very high-energy (VHE) gamma-ray astrophysics Ground-based observations with
More informationRecent Results from the HAWC Gamma Ray Observatory. Jordan Goodman University of Maryland February 2018
Recent Results from the HAWC Gamma Ray Observatory Jordan Goodman University of Maryland February 2018 High Altitude Water Cherenkov Observatory J. Goodman - University of Maryland - HAWC Winter 2018 2
More informationHighlights from the ARGO-YBJ Experiment
Highlights from the ARGO-YBJ Experiment Ivan De Mitri University of Salento and Istituto Nazionale di Fisica Nucleare Lecce, Italy On behalf of the ARGO-YBJ Collaboration 12th International Conference
More informationHigh Energy Emission. Brenda Dingus, LANL HAWC
High Energy Emission from GRBs Brenda Dingus, LANL HAWC What are GRBs? Cosmological distance Typical observed z>1 Energy released is up to few times the rest mass of Sun (if isotropic) in a few seconds
More information1939 Baade&Zwicky 1949 Fermi 1977 (Krymski; Axford; Bell; Blandford & Ostriker
46 1939 Baade&Zwicky 1949 Fermi 1977 (Krymski; Axford; Bell; Blandford & Ostriker From Aharonian et al. 2011 From Letessier-Sevon & Stanev 2011 Fermi 2-year sky map Outline 1. 2. 3. 4. knee ankle (b)
More informationPhysics Results with the ARGO-YBJ Experiment. Tristano Di Girolamo Università di Napoli Federico II INFN Sezione di Napoli
Physics Results with the ARGO-YBJ Experiment Tristano Di Girolamo Università di Napoli Federico II INFN Sezione di Napoli Napoli, 21 Febbraio 2013 Collaboration between: The ARGO-YBJ experiment Istituto
More informationTeV Cosmic Ray Anisotropies at Various Angular Scales
TeV Cosmic Ray Anisotropies at Various Angular Scales Gwenael Giacinti University of Oxford, Clarendon Laboratory Based on : GG & G.Sigl GG, M.Kachelriess, D.Semikoz Phys. Rev. Lett. 109, 071101(2012)
More informationGamma-ray and neutrino diffuse emissions of the Galaxy above the TeV
Gamma-ray and neutrino diffuse emissions of the Galaxy above the TeV (with spatial dependent CR transport) D. Grasso (INFN, Pisa) with D. Gaggero, A. Marinelli, A. Urbano, M. Valli IceCube recent results
More informationRecent discoveries from TeV and X- ray non-thermal emission from SNRs
Recent discoveries from TeV and X- ray non-thermal emission from SNRs «From Neutrino to multimessenger astronomy» Marseille Fabio Acero LUPM (LPTA), Montpellier Fabio Acero 1 Outline Evidence of acceleration
More informationGLAST and beyond GLAST: TeV Astrophysics
GLAST and beyond GLAST: TeV Astrophysics Outline: Greg Madejski Assistant Director for Scientific Programs, SLAC / Kavli Institute for Astrophysics and Cosmology Recent excitement of GLAST and plans for
More informationEvidence for a New Source of TeV Gamma Rays from Angular Correlation Studies of the Milagro and Tibet Northern Sky Surveys
Evidence for a New Source of TeV Gamma Rays from Angular Correlation Studies of the Milagro and Tibet Northern Sky Surveys Robert Atkins and David Kieda University of Utah, High Energy Astrophysics Institute,
More informationDISCOVERY OF LOCALIZED TEV GAMMA-RAY SOURCES AND DIFFUSE TEV GAMMA-RAY EMISSION FROM THE GALACTIC PLANE WITH MILAGRO USING A NEW BACKGROUND
DISCOVERY OF LOCALIZED TEV GAMMA-RAY SOURCES AND DIFFUSE TEV GAMMA-RAY EMISSION FROM THE GALACTIC PLANE WITH MILAGRO USING A NEW BACKGROUND REJECTION TECHNIQUE By Aous Abdo A DISSERTATION Submitted to
More informationDept. of Physics and Astronomy, Michigan State University, 567 Wilson Rd., East Lansing, MI 48824, USA
EPJ Web of Conferences 116, 11004 (2016) DOI: 10.1051/epjconf/201611611004 C Owned by the authors, published by EDP Sciences, 2016 Results from IceCube Tyce DeYoung a for the IceCube Collaboration Dept.
More informationCosmic Ray Physics with the ARGO-YBJ experiment
Cosmic Ray Physics with the ARGO-YBJ experiment Ivan De Mitri University of Salento and Istituto Nazionale di Fisica Nucleare Lecce, Italy On behalf of the ARGO-YBJ Collaboration Second Roma International
More informationUltra- High Energy neutrinos at the Pierre Auger Observatory
Ultra- High Energy neutrinos at the Pierre Auger Observatory Jaime Alvarez- Muñiz Univ. San?ago de Compostela, Spain for the Pierre Auger Collabora?on Very High Energy Par?cle Astronomy Kashiwa, Japan,
More informationSS-433/W50 at TeV Energies
SS-433/W50 at TeV Energies Gavin P. Rowell for the HEGRA Collaboration arxiv:astro-ph/0104288v1 17 Apr 2001 Max Planck Institut für Kernphysik D-69029 Heidelberg, Germany Abstract The HEGRA CT-System was
More informationConstraining the Diffusion Coefficient with HAWC TeV Gamma-Ray Observations of Two Nearby Pulsar Wind Nebulae
TeV Gamma-Ray Observations of Two Nearby Pulsar Wind Nebulae Los Alamos National Laboratory E-mail: hao@lanl.gov Rubén López-Coto Max-Planck Institute for Nuclear Physics E-mail: rlopez@mpi-hd.mpg.de Francisco
More informationarxiv: v1 [astro-ph.he] 28 Aug 2015
Observing The Cosmic Ray Moon Shadow With VERITAS arxiv:1508.07197v1 [astro-ph.he] 8 Aug 015, for the VERITAS Collaboration University College Dublin E-mail: ralph.bird.1@gmail.com The Earth is subjected
More informationHAWC Project Summary High energy gamma rays probe the most extreme astrophysical environments including those that produce the highest energy
HAWC Project Summary High energy gamma rays probe the most extreme astrophysical environments including those that produce the highest energy cosmic-ray particles. Most of the discoveries in the TeV energy
More informationPoS(ICRC2015)1001. Gamma Hadron Separation using Pairwise Compactness Method with HAWC
Gamma Hadron Separation using Pairwise Compactness Method with HAWC a and Stefan Westerhoff a for the HAWC Collaboration b a Department of Physics and WIPAC, University of Wisconsin-Madison, Madison, WI,
More informationThe Gamma-Ray Bright Future: The HAWC Perspective. Michelle Hui for the HAWC Collaboration Michigan Technological University
Gamma-Ray Observatory The Gamma-Ray Bright Future: The HAWC Perspective for the HAWC Collaboration Michigan Technological University What are we learning from the gamma-ray sky? October 12, 2013 Gamma-Ray
More informationPoS(ICRC2015)432. Simulation Study On High Energy Electron and Gamma-ray Detection With the Newly Upgraded Tibet ASgamma Experiment
Simulation Study On High Energy Electron and Gamma-ray Detection With the Newly Upgraded Tibet ASgamma Experiment Xu Chen a, D. Chen b, J. Huang a, H. B. Jin b, L. M. Zhai a,b, M. Shibata c, Y. Katayose
More informationParticle Acceleration in the Universe
Particle Acceleration in the Universe Hiroyasu Tajima Stanford Linear Accelerator Center Kavli Institute for Particle Astrophysics and Cosmology on behalf of SLAC GLAST team June 7, 2006 SLAC DOE HEP Program
More informationKathrin Egberts Max-Planck-Institut für Kernphysik, Heidelberg for the H.E.S.S. Collaboration
Kathrin Egberts Max-Planck-Institut für Kernphysik, Heidelberg for the H.E.S.S. Collaboration Outline The H.E.S.S. Experiment The H.E.S.S. Electron Measurement Gamma-Ray Background Hadronic Background
More informationThe High Altitude Water Cherenkov (HAWC) Observatory
The High Altitude Water Cherenkov (HAWC) Observatory Wayne Springer University of Utah for the HAWC Collaboration HAWC Observatory Design HAWC Science Capabilities First Results Future Plans HAWC Collaboration
More informationLATTES Large Array Telescope to Tracking Energetic Sources
LATTES Large Array Telescope to Tracking Energetic Sources Ronald Cintra Shellard CBPF 1 Lattes LATTES Ochiallini 2 LATTES Lattes started as a name and a project submitted to CNPq at least in 2009: Very
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 cosmic rays: experimental
VHE cosmic rays: experimental Cosmic Rays History 1912: First discovered 1927: First seen in cloud chambers 1962: First 10 20 ev cosmic ray seen Low energy cosmic rays from Sun Solar wind (mainly protons)
More informationVery High-Energy Gamma- Ray Astrophysics
Very High-Energy Gamma- Ray Astrophysics David A. Williams Santa Cruz Institute for Particle Physics UC Santa Cruz Quarknet July 12, 2013 Detecting High Energy Gamma Rays High Sensitivity HESS, MAGIC,
More informationThe Inner Region of the Milky Way Galaxy in High Energy Gamma Rays
The Inner Region of the Milky Way Galaxy in High Energy Gamma Rays Simona Murgia, SLAC-KIPAC for the Fermi LAT Collaboration Dark Matter Signatures in the Gamma-ray Sky Austin, Texas 7-8 May 2012 arxiv:0908.0195
More informationGamma-Ray Astronomy from the Ground
Gamma-Ray Astronomy from the Ground Dieter Horns University of Hamburg Introduction - summary Many new Results from ICRC 2015 No we haven't discovered dark matter, yet Yes we have discovered sources of
More informationGamma-ray Astrophysics
Gamma-ray Astrophysics AGN Pulsar SNR GRB Radio Galaxy The very high energy -ray sky NEPPSR 25 Aug. 2004 Many thanks to Rene Ong at UCLA Guy Blaylock U. of Massachusetts Why gamma rays? Extragalactic Background
More informationMeasurement of the Solar Magnetic Field effect on cosmic rays using the Sun shadow observed by the ARGO-YBJ experiment
Measurement of the Solar Magnetic Field effect on cosmic rays using the Sun shadow observed by the ARGO-YBJ experiment Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, CAS, Beijing
More informationA Search for Cosmic-ray Proton Anisotropy with the Fermi Large Area Telescope
A Search for Cosmic-ray Proton Anisotropy with the Fermi Large Area Telescope, Justin Vandenbroucke on behalf of the Fermi-LAT Collaboration Department of Physics and Wisconsin IceCube Particle Astrophysics
More informationQuarkNet 2002: Cosmic Rays Anthony Shoup, UCI. Shoup 1
Anthony Shoup, UCI Shoup 1 Outline: History of cosmic rays (CRs) What are cosmic rays anyway? You ve got to be kidding me, right? How do we know what we know? (composition, rates) (sources) (detectors)
More information(Future) Experiments for gamma-ray detection
(Future) Experiments for gamma-ray detection K. Ragan McGill University ISSS (GSSI) June 2017 Cosmic Ray Physics in Space K. Ragan ISSS Jun 2017 1 Menu Antipasti Introduction & motivation: why study GeV/TeV
More informationThe Secondary Universe
Secondary photons and neutrinos from distant blazars and the intergalactic magnetic fields UC Berkeley September 11, 2011 The talk will be based on A new interpretation of the gamma-ray observations of
More informationCTB 37A & CTB 37B - The fake twins SNRs
Annecy le vieux CTB 37A & CTB 37B - The fake twins SNRs LAPP Annecy CTB 37: a complex complex 843 MHz MGPS map (Green et al. 1999) Bright region in radio emission Thought to be 2 SNRs plus a bridge and
More informationAir Shower Measurements from PeV to EeV
Air Shower Measurements from PeV to EeV Andreas Haungs haungs@ik.fzk.de James L. Pinfold August 2006 TeV workshop Madison, US Andreas Haungs 1 Cosmic Rays around the knee(s) EeV PeV Knee 2 nd Knee? Ralph
More informationPreliminary results from gamma-ray observations with the CALorimeteric Electron Telescope (CALET)
Preliminary results from gamma-ray observations with the CALorimeteric Electron Telescope (CALET) Y.Asaoka for the CALET Collaboration RISE, Waseda University 2016/12/15 CTA-Japan Workshop The extreme
More informationSearch for Astrophysical Neutrino Point Sources at Super-Kamiokande
Search for Astrophysical Neutrino Point Sources at Super-Kamiokande Yusuke Koshio for Super-K collaboration Kamioka, ICRR, Univ. of Tokyo LNGS, INFN Super-Kamiokande detector Recent results of search for
More informationA New TeV Source in the Vicinity of Cygnus OB2
The Universe Viewed in Gamma-Rays 1 A New TeV Source in the Vicinity of Cygnus OB2 Gavin ROWELL and Dieter HORNS (for the HEGRA Collaboration) Max Planck Institut für Kernphysik, Heidelberg, Germany Abstract
More informationAir showers in IceCube. Cosmic rays Neutrinos Gamma rays
Air showers in IceCube Cosmic rays Neutrinos Gamma rays Cosmic rays Cosmic accelerators produce rela9vis9c protons and nuclei (cosmic rays) CR sources (such as SNR, AGN, GRB) are likely neutrino sources
More informationGamma-Ray Astronomy With Ground Based Arrays: Results and Future Perspectives
Gamma-Ray Astronomy With Ground Based Arrays: Results and Future Perspectives Eckart Lorenz (MPI-Munich) OVERVIEW INTRODUCTION THE GENERAL CONCEPT CURRENT EXPERIMENTS AND RESULTS COMPARISON WITH OTHER
More informationProbing Cosmic-ray Propagation with TeV Gamma Rays from the Sun Using the HAWC Observatory
Probing Cosmic-ray Propagation with TeV Gamma Rays from the Sun Using the HAWC Observatory For the HAWC Collaboration University of Rochester E-mail: mnisa@ur.rochester.edu Cosmic rays in the inner solar
More informationParticle Physics Beyond Laboratory Energies
Particle Physics Beyond Laboratory Energies Francis Halzen Wisconsin IceCube Particle Astrophysics Center Nature s accelerators have delivered the highest energy protons, photons and neutrinos closing
More informationRecent Results from VERITAS
Recent Results from VERITAS Physics Department, McGill University, Montreal, Canada E-mail: hanna@physics.mcgill.ca VERITAS (Very Energetic Radiation Imaging Telescope Array System) is an array of four
More informationA MONTE CARLO STUDY OF DIFFERENT DETECTOR GEOMETRIES FOR HAWC. Iris Gebauer A THESIS
A MONTE CARLO STUDY OF DIFFERENT DETECTOR GEOMETRIES FOR HAWC By Iris Gebauer A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE
More informationConstraints on cosmic-ray origin from gamma-ray observations of supernova remnants
Constraints on cosmic-ray origin from gamma-ray observations of supernova remnants Marianne Lemoine-Goumard (CENBG, Université Bordeaux, CNRS-IN2P3, France) On behalf of the Fermi-LAT and HESS Collaborations
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 informationAn Auger Observatory View of Centaurus A
An Auger Observatory View of Centaurus A Roger Clay, University of Adelaide based on work particularly done with: Bruce Dawson, Adelaide Jose Bellido, Adelaide Ben Whelan, Adelaide and the Auger Collaboration
More informationRecent results from Super-Kamiokande
Recent results from Super-Kamiokande ~ atmospheric neutrino ~ Yoshinari Hayato ( Kamioka, ICRR, U-Tokyo ) for the Super-Kamiokande collaboration 1 41.4m Super-Kamiokande detector 50000 tons Ring imaging
More informationGamma ray emission from supernova remnant/molecular cloud associations
Gamma ray emission from supernova remnant/molecular cloud associations Stefano Gabici APC, Paris stefano.gabici@apc.univ-paris7.fr The Origin of galactic Cosmic Rays Facts: the spectrum is (ALMOST) a single
More information