Imaging the IGM/CGM. Christopher Martin California Institute of Technology For CWI, KCWI, FIREBALL,ISTOS Teams. IGM Matters Heidelberg June 2014
|
|
- Wilfrid Dalton
- 6 years ago
- Views:
Transcription
1 Imaging the IGM/CGM Christopher Martin California Institute of Technology For CWI, KCWI, FIREBALL,ISTOS Teams IGM Matters Heidelberg June 214
2 1. IGM tracing structure interconnecting galaxies Agertz, Teyssier, Moore 29 5 pkpc 3. Galaxy properties depend on recent gas flow (in/out) 4. Star forming galaxies fed by cold streams from Cosmic Web 2. Most baryons in IGM, Some in warm IGM 5. Star forming galaxies are ejecting gas & chemicals into Cosmic Web
3 Why Emission? Scale θ Size L = θd Mass M Overdensity δ Density n i = N i /L Ionization Γ/n Total density n = f(γ, n i ) Pressure p=nkt Filling Factor f Temperature T pressure Heating/cooling balance Timescales cooling t cool ~ T/nL Collapse time t ~ δ -1/2 Morphology outflows/inflows shocks, filaments Gas Kinematics Divergence Rotation Correlation of IGM w/ galaxies, AGN - Circum-galactic medium - Gas reservoirs - Inflow, accretion - Outflow, feedback Large Scale Structure Mapping large scale structure statistics P(k) v v r δ k phases (non-gaussian?)
4 Distance 11,354 Million Lt-yr Redshift 3. Wavelength 4864Å Distance 11,362 Million Lt-yr Redshift 3.1 Wavelength 4876Å Distance 11,37 Million Lt-yr Redshift 3.2 Wavelength 4888Å Map IGM/CGM using 2D Imaging Spectroscopy of Rest UV Lines: Ly, CIV, OVI
5 Observational Strategies Enabled by 2D Imaging Spectroscopy of Rest UV IGM/CGM Emission 1) Direct Detection à Maximize deep exposure volume à Optimal smoothing on extended scales 2) Stacking on known galaxies à redshift survey regions à large survey volume 3) Stacking on galaxy-traced filaments à redshift survey regions à low luminosity galaxies 4) Cross-correlate QSO abs/igm em à redshift survey regions à low luminosity galaxies 5) Cross-correlate Gal abs/igm em à redshift survey regions Lyman alpha Fluorescence (Cantalupo et al 25)
6 IGM Project Imaging & Mapping the Hidden Cosmic Web of Baryons ISTOS Explorer Å.5<z Lyα <1.2 FIREBALL Balloon Å.7<z Lyα <.85 KCWI Keck 35-1,5Å 2.<z Lyα <7.2 Time since Big Bang Billion yrs Goals (rough chronological order) Redshift (1) Discover & map Circum-Galactic Medium (CGM) & IGM-galaxy co-evolution ISTOS... F KCWI-B KCWI-R (2) Discover & map IGM emission from the hidden baryons (WHIM, cosmic web) Cosmic Epoch WHIM Grows, SF dies Star Formation Epoch SF Grows Reionization (3) Use IGM emission to trace large scale structure & cosmology (4) Detect & map emission from growing reionization HII regions Wavelength (µm)
7 FIREBALL Faint Intergalactic Redshifted Emission BALLoon Detecting the Circum-Galactic Medium at low redshift Caltech, JPL (Nikzad), LAM (Milliard), Columbia (Schiminovich), CNES Goals 1 Discover & map Circum-galactic medium to explore IGM-galaxy co-evolution 2 First demonstration of high QE UV photon-counting detectors and UV IFS and MOS
8 Targeting CGM Regions
9 ISTOS Imaging Spectroscopic Telescope for Origins Surveys Revealing the Hidden Cosmic Web of Baryons Caltech, JPL (Nikzad), LAM (Milliard), Columbia (Schiminovich), + Goals 1 Discover & map IGM emission from the hidden baryons in the Universe 2 Discover & map Circum-galactic medium to explore IGM-galaxy co-evolution 3 Decode the star formation laws at low and high redshift 4 Explore the extended, low surface brightness UV Universe
10 CWI Cosmic Web Imager Chris Mar1n, Anna Moore, Ma5 Ma5euzski, Patrick Morrissey, Daphne Chang, Shahin Rahman 3D, Low Surface Brightness Spectroscopy at Palomar Science Applica+ons (examples) 1 Map circum- galac1c medium 2<z<7 2 Map circum- QSO medium 3 Composi1on & age of stellar remnants (halos, intracluster light) 4 Low mass/surface brightn. universe 5 Galaxy kinematics & stellar pops 6 GRB/SNe host properties 7 Galactic superwinds/feedback Design ü Integral Field Spectrograph: 6 x 4 arcsec 2 ü R~5 spectrograph ü 1 channel, μm coverage w/ mul1ple gra1ngs ü Designed for low surface brightness emission ü Designed for precision sky subtrac1on ü First light 29
11 CWI : Image Slicer 6/17/11 11
12 S B Nod & Shuffle see Sembach and Tonry 1996
13 Comparison of Sky-Sky Test with Sky-Background e/12 s e/12 s Sky Sky Pixel Src Sky Pixel
14 Nod-and-Shuffle Frame Source Sky Source-Sky
15 CWI: Gas Flows in Galaxies Gas Flows that Trigger Star Formation Turbulent Gas the Regulates Star Formation? HβMosaic Image HβVelocity Map HβVelocity Dispersion Map M51 Whirlpool Galaxy v(residual) [km/s] σ v [km/s]
16 CWI: Gas Flows in Galactic Halos CWI Light bucket spectroscopy of NGC891 halo [OIII] Hβ
17 CWI: Diagnosing Stellar Halos CWI Light bucket spectroscopy of NGC891 stellar halo
18 CWI: Gas Flows to Circumgalactic Medium GALEX NUV M82 Superwind Outermost Shell CWI [NII] H [NII] [NII] H [NII] 2 1 [NII] H [NII]
19 Circum-QSO Medium
20 Palomar CWI Inflow from Cosmic Web Filament to Quasar Caltech Press Release April 28 Results from Palomar Cosmic Web Imager Martin et al. 214a
21 Distance 11,354 Million Lt-yr Redshift 3. Wavelength 4864Å Distance 11,362 Million Lt-yr Redshift 3.1 Wavelength 4876Å Distance 11,37 Million Lt-yr Redshift 3.2 Wavelength 4888Å q l
22 CWI: Circum-QSO Medium Lyα emission near QSO [arcsec] [Å] 4669Å 22
23 CWI: Circum-QSO Medium Lyα emission near QSO Å
24 CWI: Circum-QSO Medium Lyα emission near QSO [arcsec] [Å] 4669Å 24
25 Lyα emission from IGM Cosmic Web 3 Million Lt-yrs 3 Million Lt-yrs 25
26 4 Caltech Press Release April 28 Results from Palomar Cosmic Web Imager Martin et al. 214b, ApJ, April 2.
27 4 L(Fil) L(Blob) Intensity Velocity Caltech Press Release April 28 Results from Palomar Cosmic Web Imager Martin et al. 214b, April 2.
28 4) How does gas get into galaxies? Cold Flows à Forming/Refueling Galaxies L[Lyα] ~.8 L[grav]? M DM = M M DM = M Rosdahl and Blaizot 212
29 Emission Models Spectral Image Plots 5 pkpc Cantalupo+5
30 Spectral-Image Plot Lya emission simulation Cantalupo Million Light-years
31 CGM Emission & Kinematics z~3 Lyman α blob Emission Spectral Image 4669Å 31
32 CGM Emission & Kinematics z~3 Lyman α blob Emission Spectral Image 4669Å 32
33 Extended Cold-flow Disks produced by cold accretion from IGM Stewart+213 Velocity Profile
34 IGM/CGM Emission & Kinematics z~3 Lyman α blob is an extended, warped protodisk with inflow from filaments? Inner Disk Outer Disk/Ring 1 kpc Inflow from Cosmic Web 4669Å Martin+213, CWI IGM Paper III, in prep..
35 IGM/CGM Emission & Kinematics Kinematic profile at 45 DATA R45 MODEL R [Å] [Å] Martin+213, CWI IGM Paper III, in prep..
36 IGM/CGM Emission & Kinematics Kinematic Profile at 2 DATA R MODEL R [Å] [Å] Martin+213, CWI IGM Paper III, in prep..
37 Lyman α Emission Profile Physical Diagnostics à N HI, σ, Δv w = f(n HI,σ,Δv) p = g(n HI ) = Δλ/w t = h(δv) = I + - I - I + + I - p=δλ/w t = w λ λ w λ t =.5 w λ w λ w λ
38 HeII 164Å vs. Ly alpha 1216Å Galaxy Formation & Gravitational Cooling HI 1216 HeII 164 Yang+6
39 4) How do galaxies get their gas? What is the role of hot vs. cold accretion over mass and time? log ρ ρ = log δ ( ) Cold Mode Hot Mode Cold Mode Accretion log( T[K] ) Birnboim & Dekel 23; Keres+24; Dekel & Birnboim 6, 8; Dekel+ 29
40 KCWI Flexible & Powerful 2D Spectroscopy DSS Stephan s Quintet 24 Slitlet spectra PCWI λ KCWI 3 selectable image slicers! Hβ Continuum Slicer Field of View Spatial Resolution Spectral Resolution Small 2 x 8.6 x Å (R 2,) Medium 2 x 16.6 x.7.45 Å (R 1,) Large 2 x 32.6 x Å (R 5,)
41 KCWI Keck Cosmic Web Imager 3D, Low Surface Brightness Spectroscopy at Keck Key Features Wide spectral range (35-15Å) Flexible field of view, image resolution Flexible spectral resolution, coverage Superb sky subtraction Excellent imaging & Dark Sky on Mauna Kea 1 st Light Spring 215 (KCWI-Blue) Science Applications (examples) Map circum-galactic medium 2<z<7 Map circum-qso medium Map z~6 reionization bubbles Composition & age of stellar remnants Unusual stellar nebulae Low mass galaxies Galaxy outskirts Galaxy kinematics & stellar age, composition Galaxy gas halos, fountains Stong lens systems Transient sky -- Explosions Galactic superwinds/feedback Exoplanet transit spectroscopy
42 Keck Cosmic Web Imager Team Steve Kaye Randy Bartos Patrick Morrissey CM Anna Moore Don Neill Sean Adkins Connie Rockosi Connie Rockosi Drew Phillips Drew Phillips Jason Fucik Bob Weber Alex Delacroix Matt Matuszewski Harland Epps Harland Epps Sean Adkins Valerie Duval Mike Kokorowski Matt Matuszewski 42
43 CWI/FIREBALL/ISTOS New tools for mapping IGM/CGM KCWI Keck 35-1,5Å 2.<z Lyα <7.2 Summary Evidence for Filamentary Extensions and Inflow into QSO Extended Filamentary Emission around LAB Strong HeII Emission 2 I[LU]
MApping the Most Massive Overdensity Through Hydrogen (MAMMOTH) Zheng Cai (UCSC)
MApping the Most Massive Overdensity Through Hydrogen (MAMMOTH) Zheng Cai (UCSC) IGM Conference From Wall to Web, Berlin, 2016 IGM tomography (Lee+ 14, 15, 16; Stark+ 15ab): IGM Tomography a reconstruction
More informationTHE SCIENCE ENABLED BY UV EMISSION LINE MAPPING OF THE INTERGALACTIC MEDIUM AND THE CIRCUM-GALACTIC MEDIUM
THE SCIENCE ENABLED BY UV EMISSION LINE MAPPING OF THE INTERGALACTIC MEDIUM AND THE CIRCUM-GALACTIC MEDIUM A Science White Paper submitted to the Astro2010 Survey Submitted to Science Frontiers Panels:
More informationGalaxies Across Cosmic Time
Galaxies Across Cosmic Time Overview: 1. Epoch of Reionization (z>6) 2. Stellar Mass Functions to z~6 3. Deep Spectroscopy at z~2-3 4. Circumgalactic Medium (z
More informationKeck/Subaru Exchange Program Subaru Users Meeting January 20, 2011
Keck/Subaru Exchange Program Subaru Users Meeting January 20, 2011 Taft Armandroff, Director W. M. Keck Observatory With science results from: Drew Newman and Richard Ellis, Caltech A. Romanowsky, J. Strader,
More informationHigh-Redshift Galaxies: A brief summary
High-Redshift Galaxies: A brief summary Brant Robertson (Caltech) on behalf of David Law (UCLA), Bahram Mobasher (UCR), and Brian Siana (Caltech/Incoming CGE) Observable Cosmological History t~3.7x10 5
More informationQSO ABSORPTION LINE STUDIES with the HUBBLE SPACE TELESCOPE
QSO ABSORPTION LINE STUDIES with the HUBBLE SPACE TELESCOPE COLORADO GROUP: JOHN STOCKE, MIKE SHULL, JAMES GREEN, STEVE PENTON, CHARLES DANFORTH, BRIAN KEENEY Results thus far based on: > 300 QSO ABSORBERS
More informationBUILDING GALAXIES. Question 1: When and where did the stars form?
BUILDING GALAXIES The unprecedented accuracy of recent observations of the power spectrum of the cosmic microwave background leaves little doubt that the universe formed in a hot big bang, later cooling
More informationIlluminating the Sakura Web with Fluorescent Lyα Emission
Illuminating the Sakura Web with Fluorescent Lyα Emission Sebastiano Cantalupo In collaboration with many people, including: Cosmic Structure Formation Group at ETH, MUSE GTO Team (ETH, CRAL, Leiden, AIP,
More informationThe Intergalactic Medium: Overview and Selected Aspects
The Intergalactic Medium: Overview and Selected Aspects Draft Version Tristan Dederichs June 18, 2018 Contents 1 Introduction 2 2 The IGM at high redshifts (z > 5) 2 2.1 Early Universe and Reionization......................................
More informationDiffuse Media Science with BigBOSS
Diffuse Media Science with BigBOSS J. Xavier Prochaska Interstellar Medium Program of Studies (IMPS) UCO/Lick Observatory UC Santa Cruz 1 Diffuse Media My (loose) definition: n H < 1 cm -3 Intergalactic
More informationQuasar Absorption Lines
Tracing the Cosmic Web with Diffuse Gas DARK MATTER GAS STARS NEUTRAL HYDROGEN Quasar Absorption Lines use quasars as bright beacons for probing intervening gaseous material can study both galaxies and
More informationFaint Lyman Alpha Emission at z~3
Faint Lyman Alpha Emission at z~3 M. Rauch (OCIW) Collaborators ESO data : Haehnelt (IoA), Bunker (Oxford), Becker (KICC), Marleau (IPAC), Graham (UCB), Cristiani (Trieste), Jarvis (Hertfordshire), Lacey
More informationGalaxy Formation Now and Then
Galaxy Formation Now and Then Matthias Steinmetz Astrophysikalisches Institut Potsdam 1 Overview The state of galaxy formation now The state of galaxy formation 10 years ago Extragalactic astronomy in
More informationProbing the End of Dark Ages with High-redshift Quasars. Xiaohui Fan University of Arizona Dec 14, 2004
Probing the End of Dark Ages with High-redshift Quasars Xiaohui Fan University of Arizona Dec 14, 2004 High-redshift Quasars and the End of Cosmic Dark Ages Existence of SBHs at the end of Dark Ages BH
More informationGas accretion in Galaxies
Massive Galaxies Over Cosmic Time 3, Tucson 11/2010 Gas accretion in Galaxies Dušan Kereš TAC, UC Berkeley Hubble Fellow Collaborators: Romeel Davé, Mark Fardal, C.-A. Faucher-Giguere, Lars Hernquist,
More informationWhat matter(s) around galaxies? Shining a bright light on the cold phase of the CGM
What matter(s) around galaxies? Shining a bright light on the cold phase of the CGM Sebastiano Cantalupo ETH Zurich In collaboration with: MUSE GTO Team (ETH, CRAL, Leiden, AIP, Toulouse, Gottingen) +
More informationHalo Gas Velocities Using Multi-slit Spectroscopy
Halo Gas Velocities Using Multi-slit Spectroscopy Cat Wu Thesis Proposal, Fall 2009 Astronomy Department New Mexico State University Outline Diffuse ionized gas; galaxy halos Origin of halo galactic fountain
More informationHow Galaxies Get Their Gas. Jason Tumlinson STScI Hubble Science Briefing December 9, 2010
How Galaxies Get Their Gas Jason Tumlinson STScI Hubble Science Briefing December 9, 2010 Astronomy asks some Big Questions... 2 How Do Galaxies Form? Three Puzzles 1. Why are some galaxies blue and star-forming
More informationSupernova Feedback in Low and High Mass Galaxies: Luke Hovey 10 December 2009
Supernova Feedback in Low and High Mass Galaxies: Luke Hovey 10 December 2009 Galactic Winds: Mathews, W. et al. 1971 Effects of Supernovae on the Early Evolution of Galaxies: Larson, R. 1974 The origin
More informationGalaxies 626. Lecture 5
Galaxies 626 Lecture 5 Galaxies 626 The epoch of reionization After Reionization After reionization, star formation was never the same: the first massive stars produce dust, which catalyzes H2 formation
More informationGalaxies 626. Lecture 8 The universal metals
Galaxies 626 Lecture 8 The universal metals The Spectra of Distant Galaxies Distant Galaxy Stellar Continuum Emission Observer Scattering by clouds of HI in the IGM at λline* (1+zcloud) Forest of absorption
More informationEUCLID Legacy with Spectroscopy
EUCLID Legacy with Spectroscopy Gianni Zamorani INAF - Bologna Astronomical Observatory (on behalf of the E-NIS Team) Observing the Dark Universe with Euclid 17-18 November 2009 ESTEC, The Netherlands
More informationLower Redshift Analogues of the Sources of Reionization
Lower Redshift Analogues of the Sources of Reionization main collaborators: G. Becker, M. Haehnelt (IoA) J.-R. Gauthier, W. Sargent (CIT) M. Rauch (OCIW) Kyoto, May 2012 What are the sources of ionizing
More informationLecture 9. Quasars, Active Galaxies and AGN
Lecture 9 Quasars, Active Galaxies and AGN Quasars look like stars but have huge redshifts. object with a spectrum much like a dim star highly red-shifted enormous recessional velocity huge distance (Hubble
More informationAge-redshift relation. The time since the big bang depends on the cosmological parameters.
Age-redshift relation The time since the big bang depends on the cosmological parameters. Lyman Break Galaxies High redshift galaxies are red or absent in blue filters because of attenuation from the neutral
More informationGas Accretion & Outflows from Redshift z~1 Galaxies
Gas Accretion & Outflows from Redshift z~1 Galaxies David C. Koo Kate Rubin, Ben Weiner, Drew Phillips, Jason Prochaska, DEEP2, TKRS, & AEGIS Teams UCO/Lick Observatory, University of California, Santa
More informationTHE GALACTIC CORONA. In honor of. Jerry Ostriker. on his 80 th birthday. Chris McKee Princeton 5/13/2017. with Yakov Faerman Amiel Sternberg
THE GALACTIC CORONA In honor of Jerry Ostriker on his 80 th birthday Chris McKee Princeton 5/13/2017 with Yakov Faerman Amiel Sternberg A collaboration that began over 40 years ago and resulted in a lifelong
More informationSamuel Boissier, Laboratoire d'astrophysique de Marseille
http://mission.lam.fr/vestige/index.html Samuel Boissier, Laboratoire d'astrophysique de Marseille 1 The Team 2 Galaxies and gas in clusters Cluster environment: - high galaxy density (ρgal~ 100 gal Mpc-3)
More informationConnection between phenomenon of active nucleus and disk dynamics in Sy galaxies
Connection between phenomenon of active nucleus and disk dynamics in Sy galaxies Alexandrina Smirnova & Alexei Moiseev Special Astrophysical Observatory, Russian Academy of Sciences SAO RAS 6-m telescope
More informationObservations of First Light
Image from Space Telescope Science Institute Observations of First Light Betsy Barton (UC Irvine) Member, TMT SAC Project Scientist, IRIS on TMT Microwave Background What reionized the universe? The End
More informationOutline. Walls, Filaments, Voids. Cosmic epochs. Jeans length I. Jeans length II. Cosmology AS7009, 2008 Lecture 10. λ =
Cosmology AS7009, 2008 Lecture 10 Outline Structure formation Jeans length, Jeans mass Structure formation with and without dark matter Cold versus hot dark matter Dissipation The matter power spectrum
More informationFeedback and Galaxy Formation
Heating and Cooling in Galaxies and Clusters Garching August 2006 Feedback and Galaxy Formation Simon White Max Planck Institute for Astrophysics Cluster assembly in ΛCDM Gao et al 2004 'Concordance'
More informationGalaxies 626. Lecture 9 Metals (2) and the history of star formation from optical/uv observations
Galaxies 626 Lecture 9 Metals (2) and the history of star formation from optical/uv observations Measuring metals at high redshift Metals at 6 How can we measure the ultra high z star formation? One robust
More informationCalling All Baryons. Extremely Low Light Level Observations of the Cosmic Web with Ultra-Large Ground-Based Optical Telescopes
Calling All Baryons Extremely Low Light Level Observations of the Cosmic Web with Ultra-Large Ground-Based Optical Telescopes Michael Rauch (OCIW) & George Becker (KICC) Outline Modern astronomy has given
More informationON THE RELEVANCE AND FUTURE OF UV ASTRONOMY. Ana I Gómez de Castro
ON THE RELEVANCE AND FUTURE OF UV ASTRONOMY The relevance of the UV spectral range for astrophysics What is available now? Instrumental requirements for the future Actions: Network for UV Astrophysics
More informationLarge-Scale Structure
Large-Scale Structure Evidence for Dark Matter Dark Halos in Ellipticals Hot Gas in Ellipticals Clusters Hot Gas in Clusters Cluster Galaxy Velocities and Masses Large-Scale Distribution of Galaxies 1
More informationThe First Galaxies. Erik Zackrisson. Department of Astronomy Stockholm University
The First Galaxies Erik Zackrisson Department of Astronomy Stockholm University Outline The first galaxies what, when, why? What s so special about them? Why are they important for cosmology? How can we
More informationThe parsec scale of. ac-ve galac-c nuclei. Mar Mezcua. International Max Planck Research School for Astronomy and Astrophysics
The parsec scale of ESO ac-ve galac-c nuclei International Max Planck Research School for Astronomy and Astrophysics COST Ac(on MP0905 - Black Holes in a Violent Universe In collaboration with A. Prieto,
More informationThe Keck Cosmic Web Imager
The Keck Cosmic Web Imager Chris Martin a, Anna Moore a, Patrick Morrissey a, Matt Matuszewski a, Shahin Rahman a, Sean Adkins b, Harland Epps c a California Institute of Technology, Cahill Center for
More informationThe Star Formation Observatory (SFO)
Beyond JWST... STScI, Mar 26 27 2009 Slide 1 The Star Formation Observatory (SFO) From Cosmic Dawn to Our Solar System: A Next-Generation UV Optical Space Facility for the Study of Star Formation Rolf
More informationFeedback and Feeding: The Physical Conditions and Kinematics of Gas within the High-Redshift CGM
Feedback and Feeding: The Physical Conditions and Kinematics of Gas within the High-Redshift CGM Gwen Rudie (Carnegie) Amber Roberts (U de Chile) Sean Johnson (Princeton/Carnegie) Yuguang Chen (Caltech)
More informationThe Galaxy Evolution Explorer. Michael Rich, UCLA. Samir Salim Ryan Mallery
The Galaxy Evolution Explorer Michael Rich, UCLA Samir Salim Ryan Mallery A decade long effort: From early proposals for UV imaging telescopes by C. Martin, and the FOCA balloon-borne telescope at LAS
More informationPolarimetric Survey of Giant Ly Nebulae
Polarimetric Survey of Giant Ly Nebulae Yujin Yang Korea Astronomy & Space Science Institute (KASI) Chang You, Ann Zabludoff, Paul Smith, Buell Jannuzi (Steward), Moire Prescott (New Mexico), Eunchong
More informationThe Circumgalactic Medium, the Intergalactic Medium, and Prospects with TMT
The Circumgalactic Medium, the Intergalactic Medium, and Prospects with TMT Taotao Fang 方陶陶 Xiamen University 厦 门 大学 2014.11 Beijing 1 The circumgalactic medium (CGM) and the intergalactic medium (IGM)
More informationAstronomy 730. Evolution
Astronomy 730 Evolution Outline } Evolution } Formation of structure } Processes on the galaxy scale } Gravitational collapse, merging, and infall } SF, feedback and chemical enrichment } Environment }
More informationOutline: Part II. The end of the dark ages. Structure formation. Merging cold dark matter halos. First stars z t Univ Myr.
Outline: Part I Outline: Part II The end of the dark ages Dark ages First stars z 20 30 t Univ 100 200 Myr First galaxies z 10 15 t Univ 300 500 Myr Current observational limit: HST and 8 10 m telescopes
More informationThe First Galaxies: Evolution drivers via luminosity functions and spectroscopy through a magnifying GLASS
Charlotte Mason (UCLA) Aspen, 7 Feb 2016 The First Galaxies: Evolution drivers via luminosity functions and spectroscopy through a magnifying GLASS with Tommaso Treu (UCLA), Michele Trenti (U. Melbourne),
More informationIs the high-redshift inter-galactic medium metal enriched? Valentina D Odorico INAF Osservatorio Astronomico di Trieste
Is the high-redshift inter-galactic medium metal enriched? Valentina D Odorico INAF Osservatorio Astronomico di Trieste 1 Collaborators DEEP SPECTRUM PROJECT Paramita Barai, George Becker, Francesco Calura,
More informationarxiv: v1 [astro-ph.ga] 28 Mar 2018
submitted to The Astrophysical Journal Letter Preprint typeset using L A TEX style emulateapj v. 12/16/11 KECK/PALOMAR COSMIC WEB IMAGERS (KCWI/PCWI) REVEAL AN ENORMOUS LYα NEBULA IN AN EXTREMELY OVERDENSE
More informationMeasuring the evolution of the star formation rate efficiency of neutral atomic hydrogen gas from z ~1 4
Measuring the evolution of the star formation rate efficiency of neutral atomic hydrogen gas from z ~1 4 Marc Rafelski Galactic Scale Star Formation August 2012 Collaborators: Harry Teplitz Arthur Wolfe
More informationTHE GAS MASS AND STAR FORMATION RATE
THE GAS MASS AND STAR FORMATION RATE OF STAR-FORMING GALAXIES AT z ~ 1.3 Nissim Kanekar National Centre for Radio Astrophysics, Pune Apurba Bera Shiv Sethi Ben Weiner K. Dwarakanath Image: B. Premkumar
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 informationIlluminating the Dark Ages: Luminous Quasars in the Epoch of Reionisation. Bram Venemans MPIA Heidelberg
Illuminating the Dark Ages: Luminous Quasars in the Epoch of Reionisation Bram Venemans MPIA Heidelberg Workshop The Reionization History of the Universe Bielefeld University, March 8-9 2018 History of
More informationA new mechanism for the formation of PRGs
A new mechanism for the formation of PRGs Spavone Marilena (INAF-OAC) Iodice Enrica (INAF-OAC), Arnaboldi Magda (ESO-Garching), Longo Giuseppe (Università Federico II ), Gerhard Ortwin (MPE-Garching).
More informationOrigin of Bi-modality
Origin of Bi-modality and Downsizing Avishai Dekel HU Jerusalem Galaxies and Structures Through Cosmic Times Venice, March 2006 Summary Q: z
More informationGalaxy Formation/Evolution and Cosmic Reionization Probed with Multi-wavelength Observations of Distant Galaxies. Kazuaki Ota
Galaxy Formation/Evolution and Cosmic Reionization Probed with Multi-wavelength Observations of Distant Galaxies Kazuaki Ota Department of Astronomy Kyoto University 2013 Feb. 14 GCOE Symposium Outline
More informationHigh Energy Astrophysics
High Energy Astrophysics Gamma-ray Bursts Giampaolo Pisano Jodrell Bank Centre for Astrophysics - University of Manchester giampaolo.pisano@manchester.ac.uk May 2011 Gamma-ray Bursts - Observations - Long-duration
More informationChapter 15 The Milky Way Galaxy. The Milky Way
Chapter 15 The Milky Way Galaxy The Milky Way Almost everything we see in the night sky belongs to the Milky Way We see most of the Milky Way as a faint band of light across the sky From the outside, our
More informationHow to cheat with maps. perfectly sensible, honest version
How to cheat with maps watch out for weasel maps : logarithmic (favors solar system) conformal (blows up BB singularity into something significant, popular with CMB types) comoving (makes the local universe
More informationHigh Redshift Universe
High Redshift Universe Finding high z galaxies Lyman break galaxies (LBGs) Photometric redshifts Deep fields Starburst galaxies Extremely red objects (EROs) Sub-mm galaxies Lyman α systems Finding high
More informationW. M. Keck Observatory Subaru Users Meeting
W. M. Keck Observatory Subaru Users Meeting Taft Armandroff, Director January 16, 2013 Table of Contents Keck / Subaru Exchange Program Recent Keck Observatory Instrumentation and Adaptive Optics Development
More informationAGN-driven turbulence revealed by extreme [CII]158µm line cooling in radio-galaxies
AGN-driven turbulence revealed by extreme [CII]158µm line cooling in radio-galaxies Pierre Guillard CNES Fellow Intitut d Astrophysique Spatiale, Orsay, France The Universe Explored by Herschel, ESTEC,
More informationHI clouds near the Galactic Center:
PHISCC 217 February 7th, Pune HI clouds near the Galactic Center: Possible tracers for a Milky-Way nuclear wind? Enrico Di Teodoro Research School of Astronomy and Astrophysics Australian National University
More informationMapping the z 2 Large-Scale Structure with 3D Lyα Forest Tomography
Mapping the z 2 Large-Scale Structure with 3D Lyα Forest Tomography Intergalactic Matters Meeting, MPIA Heidelberg Max Planck Institut für Astronomie Heidelberg, Germany June 16, 2014 Collaborators: Joe
More informationActive Galaxies & Quasars
Active Galaxies & Quasars Normal Galaxy Active Galaxy Galactic Nuclei Bright Active Galaxy NGC 5548 Galaxy Nucleus: Exact center of a galaxy and its immediate surroundings. If a spiral galaxy, it is the
More informationEmission lines from galaxies in the Epoch of Reioniza5on
Emission lines from galaxies in the Epoch of Reioniza5on Simona Gallerani Emanuele Sobacchi, Andrea Ferrara, Livia Vallini, Andrea PalloBni, CarloDa Gruppioni, Andrei Mesinger Monte Mario, Roma, SPICA
More informationLecture 27 The Intergalactic Medium
Lecture 27 The Intergalactic Medium 1. Cosmological Scenario 2. The Ly Forest 3. Ionization of the Forest 4. The Gunn-Peterson Effect 5. Comment on HeII Reionization References J Miralda-Escude, Science
More informationWhat HI tells us about Galaxies and Cosmology
What HI tells us about Galaxies and Cosmology Leo P Coma P Martha Haynes June 2018 1 18.06 ALFALFA: A Census of Gas-bearing Galaxies A galaxy is a gravitationally bound object that consists of billions
More informationGalaxy Ecosystems Adam Leroy (OSU), Eric Murphy (NRAO/IPAC) on behalf of ngvla Working Group 2
Next Generation Very Large Array Working Group 2 HI in M74: Walter+ 08 CO in M51: Schinnerer+ 13 Continuum in M82: Marvil & Owen Galaxy Ecosystems Adam Leroy (OSU), Eric Murphy (NRAO/IPAC) on behalf of
More informationFMOS. A Wide-field Multi-Object Infra-red Spectrograph for the Subaru Telescope. David Bonfield, Gavin Dalton
FMOS A Wide-field Multi-Object Infra-red Spectrograph for the Subaru Telescope David Bonfield, Gavin Dalton David Bonfield Oxford University Wide Field NIR Spectroscopy WFCAM, VISTA are about to deliver
More informationFeeding the Beast. Chris Impey (University of Arizona)
Feeding the Beast Chris Impey (University of Arizona) Note: the box is growing due to cosmic expansion but this is factored out. Heirarchical Structure Active Galactic Nuclei (AGN) Nuclear activity in
More informationIntroduction to SDSS -instruments, survey strategy, etc
Introduction to SDSS -instruments, survey strategy, etc (materials from http://www.sdss.org/) Shan Huang 17 February 2010 Survey type Status Imaging and Spectroscopy Basic Facts SDSS-II completed, SDSS-III
More informationWarm Molecular Hydrogen at high redshift with JWST
Warm Molecular Hydrogen at high redshift with JWST Pierre Guillard Institut d Astrophysique de Paris Université Pierre et Marie Curie he Warm H 2 with JWST Outline and take-home messages 1. Observations
More informationWhat HI tells us about Galaxies and Cosmology
What HI tells us about Galaxies and Cosmology Leo P Coma P Martha Haynes UAT16 16.06.14 1 ALFALFA: A Census of Gas-bearing Galaxies A galaxy is a gravitationally bound object that consists of billions
More informationHI Galaxy Science with SKA1. Erwin de Blok (ASTRON, NL) on behalf of The HI Science Working Group
HI Galaxy Science with SKA1 Erwin de Blok (ASTRON, NL) on behalf of The HI Science Working Group SKA1 HI Science Priorities Resolved HI kinematics and morphology of ~10 10 M mass galaxies out to z~0.8
More informationThe Iguaçu Lectures. Nonlinear Structure Formation: The growth of galaxies and larger scale structures
April 2006 The Iguaçu Lectures Nonlinear Structure Formation: The growth of galaxies and larger scale structures Simon White Max Planck Institute for Astrophysics z = 0 Dark Matter ROT EVOL Cluster structure
More informationAstr 2320 Thurs. April 27, 2017 Today s Topics. Chapter 21: Active Galaxies and Quasars
Astr 2320 Thurs. April 27, 2017 Today s Topics Chapter 21: Active Galaxies and Quasars Emission Mechanisms Synchrotron Radiation Starburst Galaxies Active Galactic Nuclei Seyfert Galaxies BL Lac Galaxies
More informationIntergalactic Medium and Lyman-Alpha / Metal Absorbers
Intergalactic Medium and Lyman-Alpha / Metal Absorbers Image credit: Tom Abel & Ralf Kaehler (Stanford) Ji-hoon Kim (TAPIR)! Slides provided by: Phil Hopkins and Ji-hoon Kim Today s Agenda What are there
More informationMESSIER Unveiling galaxy formation
MESSIER Unveiling galaxy formation David Valls-Gabaud on behalf of the MESSIER consortium Challenges in UV astronomy ESO - 2013 Oct 09 Two driving science cases for critical tests of the ΛCDM paradigm
More informationFormation of z~6 Quasars from Hierarchical Galaxy Mergers
Formation of z~6 Quasars from Hierarchical Galaxy Mergers Yuexing Li et al Presentation by: William Gray Definitions and Jargon QUASAR stands for QUASI-stellAR radio source Extremely bright and active
More informationMagnetic Fields in Evolving Spiral Galaxies and their Observation with the SKA
Magnetic Fields in Evolving Spiral Galaxies and their Observation with the SKA Rainer Beck MPIfR Bonn & SKA Science Working Group Fundamental magnetic questions When and how were the first fields generated?
More informationGalactic-Scale Winds. J. Xavier Prochaska Inster(stellar+galactic) Medium Program of Studies [IMPS] UCO, UC Santa Cruz.
Galactic-Scale Winds http://arxiv.org/abs/1008.3xxx JXP, Kasen, Rubin, ApJ, to be submitted J. Xavier Prochaska Inster(stellar+galactic) Medium Program of Studies [IMPS] UCO, UC Santa Cruz Kate Rubin (IMPS,
More informationGas in and around z > 2 galaxies
Gas in and around z > 2 galaxies Michele Fumagalli August 2010 Santa Cruz Xavier Prochaska Daniel Kasen Avishai Dekel In collaboration with: Daniel Ceverino Joel Primack Gas in galaxies from theory Gas
More informationObservational Evidence of AGN Feedback
10 de maio de 2012 Sumário Introduction AGN winds Galaxy outflows From the peak to the late evolution of AGN and quasars Mergers or secular evolution? The AGN feedback The interaction process between the
More informationGalaxy Formation and Evolution
Galaxy Formation and Evolution Houjun Mo Department of Astronomy, University of Massachusetts 710 North Pleasant Str., Amherst, MA 01003-9305, USA Frank van den Bosch Department of Physics & Astronomy,
More informationInvestigating the connection between LyC and Lyα emission and other indirect indicators
Investigating the connection between LyC and Lyα emission and other indirect indicators F. Marchi, L. Pentericci, L. Guaita, D. Schaerer, M. Castellano, B. Ribeiro and the VUDS collaboration Emission line
More informationAstr 2310 Thurs. March 23, 2017 Today s Topics
Astr 2310 Thurs. March 23, 2017 Today s Topics Chapter 16: The Interstellar Medium and Star Formation Interstellar Dust and Dark Nebulae Interstellar Dust Dark Nebulae Interstellar Reddening Interstellar
More informationMulti-wavelength Surveys for AGN & AGN Variability. Vicki Sarajedini University of Florida
Multi-wavelength Surveys for AGN & AGN Variability Vicki Sarajedini University of Florida What are Active Galactic Nuclei (AGN)? Galaxies with a source of non-stellar emission arising in the nucleus (excessive
More informationSURVEYS: THE MASS ASSEMBLY AND STAR FORMATION HISTORY
Lecture #4 SURVEYS: THE MASS ASSEMBLY AND STAR FORMATION HISTORY Observational facts Olivier Le Fèvre ON Rio de Janeiro School 2014 Putting it all together Clear survey strategies Instrumentation and observing
More informationQuasars ASTR 2120 Sarazin. Quintuple Gravitational Lens Quasar
Quasars ASTR 2120 Sarazin Quintuple Gravitational Lens Quasar Quasars Quasar = Quasi-stellar (radio) source Optical: faint, blue, star-like objects Radio: point radio sources, faint blue star-like optical
More informationIsotropy and Homogeneity
Cosmic inventory Isotropy and Homogeneity On large scales the Universe is isotropic (looks the same in all directions) and homogeneity (the same average density at all locations. This is determined from
More informationWagg ea. [CII] in ALMA SV 20min, 16 ants. 334GHz. SMA 20hrs
BRI1202-0725 z=4.7 HyLIRG (10 13 L o ) pair SFR ~ few 10 3 M o yr -1 4 + SMG + Salome ea. CO 5-4 + M H2 ~ 10 11 M o QSO + HST 814 Hu ea 96 SMA [CII] 158um 334GHz, 20hrs Iono ea 2007 [CII] in 1202-0725
More informationTheoretical ideas About Galaxy Wide Star Formation! Star Formation Efficiency!
Theoretical ideas About Galaxy Wide Star Formation Theoretical predictions are that galaxy formation is most efficient near a mass of 10 12 M based on analyses of supernova feedback and gas cooling times
More informationActive Galactic Nuclei
Active Galactic Nuclei How were they discovered? How common are they? How do we know they are giant black holes? What are their distinctive properties? Active Galactic Nuclei for most galaxies the luminosity
More informationScience with the New Hubble Instruments. Ken Sembach STScI Hubble Project Scientist
Science with the New Hubble Instruments Ken Sembach STScI Hubble Project Scientist 1 Hubble Has Improved Over Time Servicing missions have improved Hubble s vision. Hubble sees farther and with greater
More informationGalactic Neighborhood and (Chandra-enabled) X-ray Astrophysics
Galactic Neighborhood and (Chandra-enabled) X-ray Astrophysics Q. Daniel Wang (University of Massachusetts) Frontier Science Galactic Neighborhood Panel Members: Leo Blitz, Julianne Dalcanton, Bruce Draine,
More informationInterpreting Galaxies across Cosmic Time with Binary Population Synthesis Models
Interpreting Galaxies across Cosmic Time with Binary Population Synthesis Models Elizabeth Stanway Warwick (UK) with J J Eldridge (Auckland, NZ) and others Putting Warwick on the Map WARWICK! London @WarwickAstro
More informationDwarf Galaxies in the nearby Universe
Blue Compact Dwarf Galaxies: born to be wild Polychronis Papaderos Centro de Astrofísica da Universidade do Porto & Instituto de Astrofísica e Ciências do Espaço Estallidos Workshop 2015 Granada May 2015
More informationStar formation feedback in galaxy formation models. Yu Lu (KIPAC/Stanford)
Star formation feedback in galaxy formation models Yu Lu (KIPAC/Stanford) Overview Galaxies form in dark matter halos. CDM model predicts too many low-mass and high-mass halos. Feedback is needed to explain
More informationGalaxy Evolution & Black-Hole Growth (review)
Galaxy Evolution & Black-Hole Growth (review) Avishai Dekel The Hebrew University of Jerusalem & UCSC Delivered by Fangzhou Jiang Dali, China, November 2018 See also Claude-Andre s talk and Joel s talk
More information