Results 81 to 90 of about 141,253 (114)
A quiescent galaxy in a gas-rich cosmic web node at z ∼ 3
Astronomy & AstrophysicsRecent JWST observations have unveiled a large number of quiescent galaxies at z ≳ 3, bringing potential challenges to current galaxy formation models.
Wang Weichen +13 more
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Challenging the LyC–Lyα Relation: Strong Lyα Emitters without LyC Leakage at z ∼ 2.3
The Astrophysical JournalThe escape fraction of Lyman continuum (LyC) ionizing radiation ( ${f}_{{\rm{esc}}}^{{\rm{LyC}}}$ ) is crucial for understanding reionization, yet difficult to measure at z ≳ 4. Recently, studies have focused on calibrating indirect indicators of ${f}_{{
Annalisa Citro +11 more
doaj +1 more source
Low luminosity elliptical galaxies [PDF]
, 1998 Long-slit spectra for the photometric axes of a sample of 14 elliptical galaxies, predominantly low-luminosity ellipticals, in the Virgo cluster and in nearby groups, are studied to investigate the galaxy kinematical structure and stellar evolutionary ...
Halliday, Claire, Halliday, C.
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Resolving the Galaxies within a Giant Lyα Nebula: Witnessing the Formation of a Galaxy Group? [PDF]
, 2012 Detailed analysis of the substructure of Lyα nebulae can put important constraints on the physical mechanisms at work and the properties of galaxies forming within them.
Dey, Arjun +10 more
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Lyα emission as a sensitive probe of feedback-regulated LyC escape from dwarf galaxies [PDF]
Lyα emission is an exceptionally informative tracer of the life cycle of evolving galaxies and the escape of ionising photons. However, theoretical studies of Lyα emission are often limited by insufficient numerical resolution, incomplete sets of ...
core +2 more sources
A complete redshift sample of galaxies [PDF]
, 1983 The role of complete redshift samples is discussed with particular attention focused on the need for new deeper and better controlled surveys for statistical clustering and dynamical studies.
Bean, A.J., Bean, Adrian John
core
The Astrophysical Journal LettersAccording 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 +4 more
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The star formation history of early-type galaxies in the fornax cluster [PDF]
, 1998 We have measured central line strengths and line-strength gradients for a complete sample of early-type galaxies in the Fornax cluster, comprising 11 elliptical and 11 lenticular galaxies, more luminous than M(_B) = -17.
Kuntschner, Harald, Kuntschner, H.
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A Massive H i-absorption-selected Galaxy at z ≈ 2.356
The Astrophysical Journal LettersWe 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 +6 more
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ODIN: Identifying Protoclusters and Cosmic Filaments Traced by Lyα-emitting Galaxies
The Astrophysical JournalTo 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 +26 more
doaj +1 more source