Results 91 to 100 of about 225,753 (242)
The First Quenched Galaxies: When and How?
The Astrophysical Journal LettersMany quiescent galaxies discovered in the early Universe by JWST raise fundamental questions on when and how these galaxies became and stayed quenched. Making use of the latest version of the semianalytic model GAEA that provides good agreement with the ...
Lizhi Xie +13 more
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A Closer Look at the Extended Edge-on Low-surface Brightness Galaxies
The Astrophysical JournalTo understand the origin of extended disks of low-surface brightness (LSB) galaxies, we studied in detail four such systems with large disks seen edge on. Two of them are edge-on giant LSB galaxies (gLSBGs) recently identified by our team.
Anna S. Saburova +15 more
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On the Formation of Galaxies in a Steady State Universe [PDF]
, 1955 D. W. Sciama
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The interaction-driven starburst contribution to the cosmic star formation rate density
, 2013 An increasing amount of observational evidence supports the notion that there are two modes of star formation: a quiescent mode in disk-like galaxies, and a starburst mode, which is generally interpreted as driven by merging.
Fiore, Fabrizio +3 more
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, 2007 15 pages, 3 figures, invited review talk, to appear in the ASP conference proceedings of the "Frank N. Bash Symposium 2007: New Horizons in Astronomy", editors: A. Frebel, J. Maund, J.
openaire +2 more sources
Dissipation and the Formation of Galaxies [PDF]
Symposium - International Astronomical Union, 1987 The evidence for dissipation in elliptical galaxies indicates neither the epoch of formation nor the rate of radiation. The hypotheses for the formation of ellipticals include mergers of pre-existing, mostly stellar, disk galaxies; accumulation of gassy fragments that subsequently turn into stars; and the dynamical collapse of a distinct protogalactic ...
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The Astrophysical JournalWe present the elemental abundances and ages of 19 massive quiescent galaxies at z ∼ 1.4 and z ∼ 2.1 from the Keck Heavy Metal Survey. The ultradeep LRIS and MOSFIRE spectra were modeled using a full-spectrum stellar population fitting code with variable
Aliza G. Beverage +13 more
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Galaxy Formation in a Steady State Universe [PDF]
, 1966 James H. Hunter, D. W. Sciama
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Approximations to galaxy star formation rate histories: properties and uses of two examples
, 2018 Galaxies evolve via a complex interaction of numerous different physical processes, scales and components. In spite of this, overall trends often appear.
Cohn, J. D.
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The Astrophysical JournalWith the wavelength coverage, sensitivity, and high spatial resolution of JWST, it is now possible to peer through the dust attenuation to probe the rest-frame near-infrared (NIR) and stellar structures of extremely dusty galaxies at cosmic noon ( z ∼ 1−
Sedona H. Price +20 more
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