Guillermo A. Blanc
Yale University
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Featured researches published by Guillermo A. Blanc.
Proceedings of Frank N. Bash Symposium 2011: New Horizons in Astronomy — PoS(Bash11) | 2012
Amanda Heiderman; Neal J. Evans; Karl Gebhardt; Guillermo A. Blanc; Timothy A. Davis; Casey Papovich; Daisuke Iono; Min Su Yun
Amanda Heiderman∗,1, Neal J. Evans II1, Karl Gebhardt1, Guillermo Blanc2, Timothy A. Davis3, Casey Papovich4, Daisuke Iono5 and Min Yun6 1University of Texas at Austin Department of Astronomy 1 University Station, C1400 Austin, Texas 78712-0259 2Observatories of the Carnegie Institution 813 Santa Barbara Street Pasadena, California 91101 3ESO Karl-Schwarzschild-Strasse 2 D-85748 Garching bei München 4Texas A&M University Department of Physics and Astronomy College Station, TX 77843-4242 5Nobeyama Radio Observatory, NAOJ Minamimaki, Minamisaku, Nagano, 384-1305, Japan 6Department of Astronomy University of Massachusetts Graduate Research Tower B 619E 710 North Pleasant Street Amherst, MA 01003-9305 E-mail: [email protected]
arXiv: Astrophysics | 2006
Eric Gawiser; Pieter G. van Dokkum; Caryl Gronwall; Robin Ciardullo; Guillermo A. Blanc; Francisco J. Castander; John J. Feldmeier; Harold Francke; Marijn Franx; Lutz Haberzettl; David Herrera; Thomas Hickey; Leopoldo Infante; Paulina Lira; Jose Manuel Campillos Maza; Ryan F. Quadri; Alexander Richardson; Kevin Schawinski; Mischa Schirmer; Edward N. Taylor; Ezequiel Treister; C. Megan Urry; Shanil N. Virani
We selected 40 candidate Lyα-emitting galaxies (LAEs) at z 3.1 with observed-frame equivalent widths greater than 150 A and inferred emission-line fluxes above 2.5 × 10-17 ergs cm-2 s-1 from deep narrowband and broadband MUSYC images of the Extended Chandra Deep Field South. Covering 992 arcmin2, this is the largest blank field surveyed for LAEs at z ~ 3, allowing an improved estimate of the space density of this population of (3 ± 1) × 10-4 h Mpc-3. Spectroscopic follow-up of 23 candidates yielded 18 redshifts, all at z 3.1. Over 80% of the LAEs are dimmer in continuum magnitude than the typical Lyman break galaxy (LBG) spectroscopic limit of R = 25.5 (AB), with a median continuum magnitude R 27 and very blue continuum colors, V-z 0. Over 80% of the LAEs have the right UVR colors to be selected as LBGs, but only 10% also have R ≤ 25.5. Stacking the UBVRIzJK fluxes reveals that LAEs have stellar masses 5 × 108 h M☉ and minimal dust extinction, AV 0.1. Inferred star formation rates are 6 h M☉ yr-1, yielding a cosmic star formation rate density of 2 × 10-3 h70 M☉ yr-1 Mpc-3. None of our LAE candidates show evidence for rest-frame emission-line equivalent widths EWrest > 240 A that might imply a nonstandard initial mass function. One candidate is detected by Chandra, implying an AGN fraction of 2% ± 2% for LAE candidate samples. In summary, LAEs at z ~ 3 have rapid star formation, low stellar mass, little dust obscuration, and no evidence for a substantial AGN component.
Proceedings of Frank N. Bash Symposium 2013: New Horizons in Astronomy — PoS(BASH 2013) | 2014
Taylor S. Chonis; Guillermo A. Blanc; Gary J. Hill
Archive | 2014
Robin Ciardullo; Gregory R. Zeimann; Caryl Gronwall; Henry Gebhardt; Donald P. Schneider; Alex Hagen; A. I. Malz; Guillermo A. Blanc; Gary J. Hill; Niv Drory; Eric Joseph Gawiser
Archive | 2013
John J. Feldmeier; Alex Hagen; Robin Ciardullo; Caryl Cronwall; Eric Joseph Gawiser; Lucia Guaita; Lea M. Z. Hagen; Nicholas A. Bond; Viviana Acquaviva; Guillermo A. Blanc; Alvaro Orsi; Peter Kurczynski
Archive | 2013
Robin Ciardullo; Caryl Gronwall; Joshua J. Adams; Guillermo A. Blanc; Karl Gebhardt; Steven L. Finkelstein; Shardha Jogee; Gary J. Hill; Niv Drory; Ulrich Hopp; Donald P. Schneider; Gregory R. Zeimann; Gavin B. Dalton
Archive | 2013
Taylor S. Chonis; Guillermo A. Blanc; Gary J. Hill; Joshua J. Adams; Steven L. Finkelstein; Karl Gebhardt; Juna A. Kollmeier; Robin Ciardullo; Niv Drory; Caryl Gronwall; Alex Hagen; Roderik Overzier; Mimi Song; Gregory R. Zeimann
Archive | 2011
Jessica G. J. Adams; Guillermo A. Blanc; Gary J. Hill; Karl Gebhardt; Niv Drory; Lei Hao; Ralf Bender; Ji-won Byun; Robin Ciardullo; Mark E. Cornell; Steven L. Finkelstein; Andrew M. Fry; Eric Joseph Gawiser; Caryl Gronwall; Ulrich Hopp; Donghui Jeong; Andreas Kelz; Ralf Kelzenberg; Eiichiro Komatsu; Phillip J. MacQueen; John C. Murphy; P. S. Odoms; M. Roth; Donald P. Schneider; Joseph R. Tufts; Christopher P. Wilkinson
Archive | 2011
Robin Ciardullo; Karl Gebhardt; Caryl Gronwall; Gary J. Hill; Niv Drory; Joshua J. Adams; Guillermo A. Blanc
Archive | 2011
Guillermo A. Blanc; Jessica G. J. Adams; Karl Gebhardt; Gary J. Hill; Niv Drory