Results 101 to 110 of about 8,408 (187)

Neutral gas in Lyman-alpha emitting galaxies Haro 11 and ESO 338-IG04 measured through sodium absorption

, 2013
Context. The Lyman alpha emission line of galaxies is an important tool for finding galaxies at high redshift, and thus probe the structure of the early universe.
Fathi, K., Hayes, M., Mas-Hesse, J. M., Rivera-Thorsen, T., Sandberg, A., Schaerer, D., Östlin, G.   +6 more
core   +1 more source

ODIN: Probing the LAE Lyα Luminosity Function across Cosmic Time and Different Environments

The Astrophysical Journal
The ubiquity and relative ease of discovery make 2 ≲  z  ≲ 5 Ly α emitting galaxies (LAEs) ideal tracers for large-scale structure of the distant Universe.
Gautam Nagaraj, Robin Ciardullo, Caryl Gronwall, Vandana Ramakrishnan, Kyoung-Soo Lee, Eric Gawiser, Nicole Firestone, Govind Ramgopal, J. Aguilar, S. Ahlen, D. Bianchi, D. Brooks, F. J. Castander, T. Claybaugh, A. Cuceu, A. de la Macorra, Arjun Dey, Biprateep Dey, P. Doel, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, H. K. Herrera-Alcantar, K. Honscheid, M. Ishak, R. Kehoe, D. Kirkby, T. Kisner, A. Kremin, M. Landriau, L. Le Guillou, M. E. Levi, C. Magneville, M. Manera, P. Martini, A. Meisner, R. Miquel, J. Moustakas, N. Palanque-Delabrouille, F. Prada, I. Pérez-Ràfols, G. Rossi, L. Samushia, E. Sanchez, D. Schlegel, M. Schubnell, H. Seo, J. Silber, D. Sprayberry, G. Tarlé, F. Valdes, B. A. Weaver, M. White, R. Zhou, H. Zou   +55 more
doaj   +1 more source

Spectroscopic detection of CIV in a galaxy at z=7.045: Implications for the ionizing spectra of reionization-era galaxies

, 2015
We present Keck/MOSFIRE observations of UV metal lines in four bright gravitationally-lensed z~6-8 galaxies behind the cluster Abell 1703. The spectrum of A1703-zd6, a highly-magnified star forming galaxy with a Lyman-alpha redshift of z=7.045, reveals a
Charlot, Stephane, Clement, Benjamin, Feltre, Anna, Gutkin, Julia, Mainali, Ramesh, Richard, Johan, Robertson, Brant, Schenker, Matthew, Siana, Brian, Stark, Daniel P., Tang, Mengtao, Walth, Gregory   +11 more
core   +3 more sources

The LyAlpha Line Profiles of Ultraluminous Infrared Galaxies: Fast Winds and Lyman Continuum Leakage

, 2015
We present new Hubble Space Telescope Cosmic Origins Spectrograph far-ultraviolet (far-UV) spectroscopy and Keck Echellete optical spectroscopy of 11 ultraluminous infrared galaxies (ULIRGs), a rare population of local galaxies experiencing massive gas ...
Danforth, Charles W., Dijkstra, Mark, Henry, Alaina, Martin, Crystal L., Soto, Kurt T., Wong, Joseph   +5 more
core   +1 more source

Properties of Low-Redshift Damped Lyman Alpha Galaxies

, 2001
8 pages, 6 figures, uses newpasp.sty. To appear in ASP Conference Series "Extragalactic Gas at Low Redshift", J. Mulchaey and J.
Nestor, Daniel B., Rao, Sandhya M., Turnshek, David A., Monier, Eric, Lane, Wendy, Bergeron, Jacqueline   +5 more
openaire   +2 more sources

Lyα Nebulae in HETDEX: The Largest Statistical Census Bridging Lyα Halos and Blobs across Cosmic Noon

The Astrophysical Journal
The Hobby–Eberly Dark Energy Experiment (HETDEX) is an untargeted ∼540 deg ^2 spectroscopic survey of Ly α emission in the 1.9 
Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis, Robin Ciardullo, Chris Byrohl, Chenxu Liu, Maya H. Debski, Óscar A. Chávez Ortiz, Maximilian Fabricius, Daniel J. Farrow, Steven L. Finkelstein, Caryl Gronwall, Gary J. Hill, Maja Lujan Niemeyer, Brianna McKay, Shiro Mukae, Masami Ouchi, Huub Röttgering, Donald P. Schneider, Sarah Tuttle, Lutz Wisotzki, Gregory Zeimann, Sai Zhai   +22 more
doaj   +1 more source

Peering into the dark (ages) with low-frequency space interferometers: Using the 21-cm signal of neutral hydrogen from the infant universe to probe fundamental (Astro)physics. [PDF]

Exp Astron (Dordr), 2021
Koopmans LVE, Barkana R, Bentum M, Bernardi G, Boonstra AJ, Bowman J, Burns J, Chen X, Datta A, Falcke H, Fialkov A, Gehlot B, Gurvits L, Jelić V, Klein-Wolt M, Lazio J, Meerburg D, Mellema G, Mertens F, Mesinger A, Offringa A, Pritchard J, Semelin B, Subrahmanyan R, Silk J, Trott C, Vedantham H, Verde L, Zaroubi S, Zarka P.   +29 more
europepmc   +1 more source

Using Lyman-alpha to detect galaxies that leak Lyman continuum

, 2015
We propose to infer ionising continuum leaking properties of galaxies by looking at their Lyman-alpha line profiles. We carry out Lyman-alpha radiation transfer calculations in two models of HII regions which are porous to ionising continuum escape: 1 ...
Hayes, M., Orlitova, I., Schaerer, D., Verhamme, A.   +3 more
core   +1 more source

Transfert radiatif Lyman-alpha dans les galaxies

, 2008
Pour étudier la formation et l'évolution des Galaxies, nous avons développé un code de transfert radiatif des photons Lyman-alpha à travers le milieu interstellaire d'une galaxie, MCLya. Emise par les atomes d'hydrogènes excités, cette raie de résonnance est altérée par les diffusions multiples qu'elle subit sur le gaz neutre et la poussière ...
openaire   +2 more sources

Extended Tidal Structure In Two Lyman Alpha-Emitting Starburst Galaxies

, 2004
We present new VLA C-configuration HI imaging of the Lyman Alpha-emitting starburst galaxies Tol 1924-416 and IRAS 08339+6517. The effective resolution probes neutral gas structures larger than 4.7 kpc in Tol 1924-416, and larger than 8.1 kpc in IRAS ...
Artashes Petrosian, Claus Leitherer, Daniel Kunth, Evan D. Skillman, Goran Ostlin, John M. Cannon, Kunth D., Kunth D., Lequeux J., Martin J. M., Miguel Mas‐Hesse, Ostlin G., Ostlin G.   +12 more
core   +3 more sources