Results 31 to 40 of about 8,408 (187)

The Lyman Alpha Reference Sample

Astronomy & Astrophysics, 2022
Aims.We useHubbleSpace Telescope data of 45 nearby star-forming galaxies to investigate properties of Lyman-alpha (Lyα) halos, Lyαmorphology, and the star-forming characteristics of galaxies. We study how the morphology of Lyαemission is related to other Lyαobservables.
Rasekh, A., Melinder, J., Östlin, G., Hayes, M., Herenz, E. C., Runnholm, A., Kunth, D., Mas Hesse, J. M., Verhamme, A., Cannon, J. M.   +9 more
openaire   +3 more sources

HETDEX Public Source Catalog 1—Stacking 50,000 Lyman Alpha Emitters

The Astrophysical Journal, 2023
We describe the ensemble properties of the 1.9 < z < 3.5 Lyman alpha emitters (LAEs) found in the HETDEX survey’s first public data release, HETDEX Public Source Catalog 1.
Dustin Davis, Karl Gebhardt, Erin Mentuch Cooper, William P. Bowman, Barbara Garcia Castanheira, John Chisholm, Robin Ciardullo, Maximilian Fabricius, Daniel J. Farrow, Steven L. Finkelstein, Caryl Gronwall, Eric Gawiser, Gary J. Hill, Ulrich Hopp, Lindsay R. House, Donghui Jeong, Wolfram Kollatschny, Eiichiro Komatsu, Chenxu Liu, Maja Lujan Niemeyer, Alberto Saldana-Lopez, Shun Saito, Donald P. Schneider, Jan Snigula, Sarah Tuttle, Laurel H. Weiss, Lutz Wisotzki, Gregory Zeimann   +27 more
doaj   +1 more source

Intensity Mapping of Lyman-alpha Emission During the Epoch of Reionization [PDF]

, 2012
We calculate the absolute intensity and anisotropies of the Lyman-alpha radiation field present during the epoch of reionization. We consider emission from both galaxies and the intergalactic medium (IGM) and take into account the main contributions to ...
Asantha Cooray, Barkana, Barkana, Bouwens, Bouwens, Cantalupo, Chen, Chuzhoy, Conroy, Cooray, Davé, Dijkstra, Dijkstra, Dopita, Fan, Fardal, Fernandez, Furlanetto, Gnedin, Gong, Gong, Haardt, Haiman, Hayes, James Bock, Jiang, Kashikawa, Kennicutt, Komatsu, Larson, Lidz, Mario G. Santos, Marta B. Silva, Mesinger, Mesinger, Oesch, Ota, Ota, Ouchi, Ouchi, Pawlik, Pengelly, Razoumov, Shibuya, Shimasaku, Shull, Siana, Smith, Steidel, Taniguchi, Visbal, Wang, Wise, Wyithe, Yan Gong, Zahn, Zaldarriaga, Zheng, Zheng   +58 more
core   +3 more sources

The Relationship between IGM Lyα Opacity and Galaxy Density near the End of Reionization

The Astrophysical Journal, 2023
Observed scatter in the Ly α opacity of quasar sightlines at z < 6 has motivated measurements of the correlation between Ly α opacity and galaxy density, as models that predict this scatter make strong and sometimes opposite predictions for how they ...
Holly M. Christenson, George D. Becker, Anson D’Aloisio, Frederick B. Davies, Yongda Zhu, Elisa Boera, Fahad Nasir, Steven R. Furlanetto, Matthew A. Malkan   +8 more
doaj   +1 more source

Damped Lyman-Alpha Galaxies

, 2000
To appear in "Gas and Galaxy Evolution", ASP Conference Series, eds. Hibbard, Rupen, and van Gorkum.
Turnshek, D., Rao, S., Lane, W., Monier, E., Nestor, D., Bergeron, J., Smette, A.   +6 more
openaire   +2 more sources

Constraints on the Epoch of Reionization with Roman Space Telescope and the Void Probability Function of Lyα Emitters

The Astrophysical Journal, 2023
We use large simulations of Ly α emitters with different fractions of ionized intergalactic medium to quantify the clustering of Ly α emitters as measured by the void probability function (VPF), and how it evolves under different ionization scenarios. We
Lucia A. Perez, Sangeeta Malhotra, James E. Rhoads, Isak G. B. Wold   +3 more
doaj   +1 more source

Lyman Alpha Emitting Galaxies in the Nearby Universe [PDF]

Publications of the Astronomical Society of Australia, 2015
AbstractThe Lyman alpha emission line (Lyα) of neutral hydrogen (Hi) is intrinsically the brightest emission feature in the spectrum of astrophysical nebulae, making it a very attractive observational feature with which to survey galaxies. Moreover as an ultraviolet resonance line, Lyα possesses several unique characteristics that make it useful to ...
openaire   +2 more sources

HOW LYMAN ALPHA EMISSION DEPENDS ON GALAXY STELLAR MASS [PDF]

The Astrophysical Journal Letters, 2016
ABSTRACT In this work, we show how the stellar mass (M *) of galaxies affects the 3 < z < 4.6 Lyα equivalent width (EW) distribution. To this end, we design a sample of 629 galaxies in the M * range from the ...
Grecco A. Oyarzún, Guillermo A. Blanc, Valentino González, Mario Mateo, John I. Bailey III, Steven L. Finkelstein, Paulina Lira, Jeffrey D. Crane, Edward W. Olszewski   +8 more
openaire   +3 more sources

Early Results from GLASS-JWST. XXIII. The Transmission of Lyα from UV-faint z ∼ 3–6 Galaxies

The Astrophysical Journal, 2023
Ly α emission from galaxies can be used to trace neutral hydrogen in the epoch of reionization, however, there is a degeneracy between the attenuation of Ly α in the intergalactic medium (IGM) and the line profile emitted by the galaxy.
Gonzalo Prieto-Lyon, Charlotte Mason, Sara Mascia, Emiliano Merlin, Namrata Roy, Alaina Henry, Guido Roberts-Borsani, Takahiro Morishita, Xin Wang, Kit Boyett, Patricia Bolan, Marusa Bradac, Marco Castellano, Amata Mercurio, Themiya Nanayakkara, Diego Paris, Laura Pentericci, Claudia Scarlata, Michele Trenti, Tommaso Treu, Eros Vanzella   +20 more
doaj   +1 more source

On the Lyman-Alpha Emission of Starburst Galaxies [PDF]

The Astrophysical Journal, 1993
7 PostScript pages with 4 Figures (included), astro-ph ...
openaire   +2 more sources