Results 51 to 60 of about 103 (81)

MUSEQuBES: Unveiling Cosmic Web Filaments at z ≈ 3.6 through Dual Absorption and Emission Line Analysis

The Astrophysical Journal Letters
According to modern cosmological models, galaxies are embedded within cosmic filaments, which supply a continuous flow of pristine gas, fueling star formation and driving their evolution. However, due to their low density, the direct detection of diffuse
Eshita Banerjee, Sowgat Muzahid, Joop Schaye, Sebastiano Cantalupo, Sean D. Johnson   +4 more
doaj   +1 more source

A Massive H i-absorption-selected Galaxy at z ≈ 2.356

The Astrophysical Journal Letters
We use the Karl G. Jansky Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array to detect CO(1–0), CO(3–2), and rest-frame 349 GHz continuum emission from an H i -selected galaxy, DLA1020+2733g, at z  ≈ 2.3568 in the field of the z =
B. Kaur, N. Kanekar, M. Neeleman, Y. Zhu, J. X. Prochaska, M. Rafelski, G. Becker   +6 more
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ODIN: Identifying Protoclusters and Cosmic Filaments Traced by Lyα-emitting Galaxies

The Astrophysical Journal
To understand the formation and evolution of massive cosmic structures, studying them at high redshift, in the epoch when they formed the majority of their mass, is essential.
Vandana Ramakrishnan, Kyoung-Soo Lee, Maria Celeste Artale, Eric Gawiser, Yujin Yang, Changbom Park, Yi-Kuan Chiang, Robin Ciardullo, Arjun Dey, Caryl Gronwall, Lucia Guaita, Ho Seong Hwang, Sang Hyeok Im, Woong-Seob Jeong, Seongjae Kim, Ankit Kumar, Jaehyun Lee, Seong-Kook Lee, Byeongha Moon, Nelson Padilla, Alexandra Pope, Roxana Popescu, Akriti Singh, Hyunmi Song, Paulina Troncoso, Francisco Valdes, Ann Zabludoff   +26 more
doaj   +1 more source

Lyα Emission Line Profiles of Extreme [O iii]- emitting Galaxies at z ≳ 2: Implications for Lyα Visibility in the Reionization Era

The Astrophysical Journal
JWST observations have recently begun delivering the first samples of Ly α velocity profile measurements at z > 6, opening a new window into the reionization process.
Mengtao Tang, Daniel P. Stark, Richard S. Ellis, Michael W. Topping, Charlotte Mason, Zhihui Li, Adèle Plat   +6 more
doaj   +1 more source

ODIN: Clustering Analysis of 14,000 Lyα-emitting Galaxies at z = 2.4, 3.1, and 4.5

The Astrophysical Journal Letters
Ly α emitters (LAEs) are star-forming galaxies that efficiently probe the spatial distribution of galaxies in the high-redshift Universe. The spatial clustering of LAEs reflects the properties of their individual host dark matter halos, allowing us to ...
Danisbel Herrera, Eric Gawiser, Barbara Benda, Nicole M. Firestone, Vandana Ramakrishnan, Byeongha Moon, Kyoung-Soo Lee, Changbom Park, Francisco Valdes, Yujin Yang, María Celeste Artale, Robin Ciardullo, Caryl Gronwall, Lucia Guaita, Ho Seong Hwang, Jacob Kennedy, Ankit Kumar, Ann Zabludoff   +17 more
doaj   +1 more source

Lyα Profile Shape as an Escape-fraction Diagnostic at High Redshift

The Astrophysical Journal
While the shape of the Ly α profile is viewed as one of the best tracers of ionizing-photon escape fraction ( f _esc ) within low-redshift ( z ∼ 0.3) surveys of the Lyman continuum, this connection remains untested at high redshift. Here, we combine deep,
Anthony Pahl, Alice Shapley, Charles C. Steidel, Naveen A. Reddy, Yuguang Chen, Gwen C. Rudie   +5 more
doaj   +1 more source

Effect of Lyα Radiative Transfer on Intensity Mapping Power Spectra

The Astrophysical Journal
Clustering of Ly α -emitting galaxies (LAEs) and Ly α line intensity mapping (LIM) are useful probes of cosmology. However, Ly α radiative transfer (RT) effects, such as absorption, line shift, and line broadening, and their dependence on the large-scale
Maja Lujan Niemeyer
doaj   +1 more source

LATIS: Constraints on the Galaxy–Halo Connection at z ∼ 2.5 from Galaxy–Galaxy and Galaxy–Lyα Clustering

The Astrophysical Journal
The connection between galaxies and dark matter halos is often quantified using the stellar mass–halo mass (SMHM) relation. Optical and near-infrared imaging surveys have led to a broadly consistent picture of the evolving SMHM relation based on ...
Andrew B. Newman, Mahdi Qezlou, Nima Chartab, Gwen C. Rudie, Guillermo A. Blanc, Simeon Bird, Andrew J. Benson, Daniel D. Kelson, Brian C. Lemaux   +8 more
doaj   +1 more source

The Lyα and Continuum Origins Survey. II. The Connection between the Escape of Ionizing Radiation and Lyα Halos in Star-forming Galaxies

The Astrophysical Journal
One of the current challenges in galaxy evolution studies is to establish the mechanisms that govern the escape of ionizing radiation from galaxies.
A. Saldana-Lopez, M. J. Hayes, A. Le Reste, C. Scarlata, J. Melinder, A. Henry, F. Leclercq, T. Garel, R. Amorín, H. Atek, O. Bait, C. A. Carr, J. Chisholm, S. R. Flury, T. M. Heckman, A. E. Jaskot, I. Jung, Z. Ji, L. Komarova, Y-H. Lin, M. S. Oey, G. Östlin, L. Pentericci, A. Runnholm, D. Schaerer, T. X. Thuan, X. Xu   +26 more
doaj   +1 more source

The MOSDEF-KCWI Survey: Spectral Properties of Lyα Halos around z ∼ 2 Star-forming Galaxies

The Astrophysical Journal
We present Keck Cosmic Web Imager integral field observations of extended Ly α emission in the circumgalactic medium of 27 typical star-forming galaxies at z ∼ 2, drawn from the Multi-Object Spectrometer for Infra-Red Exploration (MOSFIRE) Deep Evolution
Andrew Weldon, Zhiyuan Song, Naveen A. Reddy, Alice E. Shapley   +3 more
doaj   +1 more source