Results 71 to 80 of about 210 (157)

Lyman Break Galaxies and the Lyman-alpha Forest

, 2002
We use hydrodynamic simulations to predict correlations between Lya forest absorption and galaxies at redshift z~3. The probability distribution function (PDF) of Lya flux decrements shifts systematically towards higher values in the vicinity of galaxies, reflecting the overdense environments in which these galaxies reside. The predicted signal remains
Kollmeier, Juna A., Weinberg, David H., Dave', Romeel, Katz, Neal   +3 more
openaire   +2 more sources

A Nitrogen-rich AGN Powering a Large Ionizing Bubble at z = 8.63

The Astrophysical Journal
We report the detection of Ly α in CANUCS-LRD-z8.6, a recently discovered active galactic nucleus (AGN) at z = 8.63 by R. Tripodi et al. ( 2025 ), in new NIRSpec/MSA G140H/F070LP observations.
Takahiro Morishita, Massimo Stiavelli, Charlotte A. Mason, Roberta Tripodi, Marco Chiaberge, Stefan Schuldt, Chris J. Willott, Yechi Zhang   +7 more
doaj   +1 more source

Lyman alpha emission in high-redshift galaxies

, 2007
A significant fraction of the high-redshift galaxies show strong Lyman emission lines. For redshifts z>5, most known galaxies belong to this class. However, so far not much is known about the physical structure and nature of these objects. Our aim is to analyse the Lyman alpha emission in a sample of high-redshift UV-continuum selected galaxies and ...
Tapken, C., Appenzeller, I., Noll, S., Richling, S., Heidt, J., Meinkoehn, E., Mehlert, D.   +6 more
openaire   +2 more sources

Observational Signatures of Lyman Alpha Emission from Early Galaxy Formation. [PDF]

Proceedings of Cosmic Radiation Fields: Sources in the early Universe — PoS(CRF 2010), 2011
6 pages, 4 figures; conference proceedings from "Cosmic Radiation Fields: Sources in the early Universe", 2010, Hamburg ...
openaire   +3 more sources

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

Escape Fractions from Unattenuated Lyα Emitters around Luminous z > 6 Quasars

The Astrophysical Journal Letters
Ionized proximity zones around luminous quasars provide a unique laboratory to characterize the Ly α emission lines from z  > 6 galaxies without significant attenuation from the intergalactic medium (IGM).
Minghao Yue, Anna-Christina Eilers, Jorryt Matthee, Rohan P. Naidu, Rongmon Bordoloi, Frederick B. Davies, Joseph F. Hennawi, Daichi Kashino, Ruari Mackenzie, Robert A. Simcoe   +9 more
doaj   +1 more source

Enantiomeric Excesses of Aminonitrile Precursors Determine the Homochirality of Amino Acids. [PDF]

J Phys Chem Lett, 2023
Shoji M, Kitazawa Y, Sato A, Watanabe N, Boero M, Shigeta Y, Umemura M.   +6 more
europepmc   +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

A Comparative Study of Damped Lyman Alpha Galaxies

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

The Sunburst Arc with JWST. IV. The Importance of Interaction, Turbulence, and Feedback for Lyman-continuum Escape

The Astrophysical Journal
At present, the best opportunity for detailed Lyman continuum (LyC) escape studies is in gravitationally lensed galaxies at z  ≳ 2. Only one such galaxy currently exists in the literature with sufficient magnification and spatial resolution: the Sunburst
T. Emil Rivera-Thorsen, Brian Welch, Taylor Hutchison, Matthew J. Hayes, Jane R. Rigby, Keunho Kim, Suhyeon Choe, Michael Florian, Matthew B. Bayliss, Gourav Khullar, Keren Sharon, Håkon Dahle, John Chisholm, Erik Solhaug, M. Riley Owens, Michael D. Gladders   +15 more
doaj   +1 more source