Results 141 to 150 of about 5,863 (203)

The Wide Field Imager Lyman-Alpha Search (WFILAS) for Galaxies at Redshift ~ 5.7. II. Survey design and sample analysis

, 2015
Context. Wide-field narrowband surveys are an efficient way of searching large volumes of high-redshift space for distant galaxies. Aims. We describe the Wide Field Imager Lyman-Alpha Search (WFILAS) over 0.74 sq.
Athreya, Ramana M, Meisenheimer, Klaus, Szeifert, Thomas, Vanzi, Leonardo, Jones, D Heath, Pompei, Emanuela, Wolf, Christian, Westra, Eduard, Lidman, Christopher   +8 more
core   +1 more source

CLASSY. XI. Tracing Neutral Gas Properties Using UV Absorption Lines and 21 cm Observations

The Astrophysical Journal
Rest-frame far-ultraviolet (FUV) observations from JWST are revolutionizing our understanding of the high- z galaxies that drove reionization and the mechanisms by which they accomplished it.
Kaelee S. Parker, Danielle A. Berg, Simon Gazagnes, John Chisholm, Bethan L. James, Matthew Hayes, Timothy Heckman, Alaina Henry, Michelle A. Berg, Karla Z. Arellano-Córdova, Xinfeng Xu, Dawn K. Erb, Crystal L. Martin, Weida Hu, Evan D. Skillman, Kristen B. W. McQuinn, Zuyi Chen, Dan P. Stark   +17 more
doaj   +1 more source

Lyman alpha radiation in external galaxies

, 1990
The Ly alpha line of atomic hydrogen is often a luminous component of the radiation emitted by distant galaxies. Except for those galaxies which have a substantial central source of non-stellar ionizing radiation, most of the Ly alpha radiation emitted ...
Mckee, Christopher F., Neufeld, David A.
core  

Verifying the mass-metallicity relation in damped Lyman-alpha selected galaxies at 0.1<z<3.2

, 2014
A scaling relation has recently been suggested to combine the galaxy mass-metallicity (MZ) relation with metallicities of damped Lyman-alpha systems (DLAs) in quasar spectra.
Zafar, T., Christensen, Lise Bech, Møller, P., Fynbo, J. P. U.   +3 more
core   +1 more source

The Lyα and Continuum Origins Survey. I. Survey Description and Lyα Imaging

The Astrophysical Journal Supplement Series
Understanding the mechanisms driving the escape of ionizing or Lyman continuum (LyC) emission from the interstellar medium of galaxies is necessary to constrain the evolution of reionization and the sources responsible for it.
Alexandra Le Reste, Claudia Scarlata, Matthew J. Hayes, Jens Melinder, Alberto Saldana-Lopez, Aaron Smith, Axel Runnholm, Yu-Heng Lin, Ricardo O. Amorín, Hakim Atek, Sanchayeeta Borthakur, Cody A. Carr, Brian Fleming, Sophia R. Flury, Mauro Giavalisco, Alaina Henry, Anne E. Jaskot, Zhiyuan Ji, Intae Jung, Floriane Leclercq, Rui Marques-Chaves, Stephan R. McCandliss, M. S. Oey, Göran Östlin, Swara Ravindranath, Daniel Schaerer, Trinh X. Thuan, Xinfeng Xu   +27 more
doaj   +1 more source

The spatial distribution of Lyman alpha from star-forming galaxies in the low redshift Universe [Elektronisk resurs]

, 2022
The Lyman alpha (Lyα) emission line from the recombination of hydrogen atoms is predicted to be the strongest spectral feature of galaxies. This emission line is regularly used to detect and characterise high redshift galaxies.
Bacon, Roland,, Rasekh, Armin,, Östlin, Göran,   +2 more
core  

On the Physical Nature of Lyα Transmission Spikes in High-redshift Quasar Spectra

The Astrophysical Journal
We investigate Lyman-alpha (Ly α ) transmission spikes at 5.2 < z < 6.8 using synthetic quasar spectra from the “Cosmic Reionization on Computers” simulations.
Hanjue Zhu, Nickolay Y. Gnedin, Camille Avestruz   +2 more
doaj   +1 more source

L’émission Lyman-alpha du milieu circumgalactique des galaxies distantes zoomées par effet de lentille gravitationnelle et observées avec MUSE au VLT

, 2021
Galaxies are surrounded by a copious amont of extended gas, mostly composed of neutral hydrogen. This area, called the circumgalactic medium (CGM), is the place of gas exchanges between the host galaxy and its close environnement, and so the CGM is a ...
Claeyssens, Adélaïde
core  

SILVERRUSH. XIV. Lyα Luminosity Functions and Angular Correlation Functions from 20,000 Lyα Emitters at z ∼ 2.2–7.3 from up to 24 deg2 HSC-SSP and CHORUS Surveys: Linking the Postreionization Epoch to the Heart of Reionization

The Astrophysical Journal Supplement Series
We present luminosity functions (LFs) and angular correlation functions (ACFs) derived from 18,960 Ly α emitters (LAEs) at z  = 2.2−7.3 over a wide survey area of ≲24 deg ^2 that are identified in the narrowband data of the HSC-SSP and CHORUS surveys ...
Hiroya Umeda, Masami Ouchi, Satoshi Kikuta, Yuichi Harikane, Yoshiaki Ono, Takatoshi Shibuya, Akio K. Inoue, Kazuhiro Shimasaku, Yongming Liang, Akinori Matsumoto, Shun Saito, Haruka Kusakabe, Yuta Kageura, Minami Nakane   +13 more
doaj   +1 more source

Design For The First Narrowband Filter For The Dark Energy Camera: Optimizing The LAGER Survey For Z ~ 7 Galaxies. [PDF]

Publ Astron Soc Pac, 2019
Zheng ZY, Rhoads JE, Wang J, Malhotra S, Walker A, Mooney T, Jiang C, Hu W, Hibon P, Jiang L, Infante L, Barrientos LF, Galaz G, Valdes F, Wester W, Yang H, Coughlin A, Harish S, Kang W, Khostovan AA, Kong X, Perez LA, Pharo J, Wold I, Zheng X.   +24 more
europepmc   +1 more source