Results 91 to 100 of about 356,387 (135)
Molecular hydrogen as dark mass in dwarf galaxies
, 2004 We report here an example of a series of computer simulations of the formation of disk galaxies, including a standard cold dark matter component, gas, and star formation, which result in objects which closely resemble observed giant galaxies, with a ...
Nelson, AH +7 more
core
, 2014 A maximum jet efficiency line R similar to 25 (R = L-jet/L-bol), found in FRII radio galaxies by Fernandes et al., was extended to cover the full range of jet power by Punsly.
Li, Shuang-Liang
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Rapid Bulge Assembly in Young Galaxy Disks at Cosmic Dawn
The Astrophysical Journal Supplement SeriesRecent observations with the James Webb Space Telescope (JWST) have begun to reveal a surprising morphological diversity in galaxies within the first billion years after the Big Bang, including indications of structural maturity previously thought to ...
Anshuman Borgohain, Kanak Saha
doaj +1 more source
A polarimetry study of starburst galaxies [PDF]
, 1996 Optical imaging polarimetry has been carried out for a number of starburst galaxies under various morphological classifications. In several cases, kpc-scale reflection nebulae are detected which arise from dust grains scattering starburst radiation ...
Alton, Paul, Alton, P
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Measuring bulge and disk surface brightness in disk galaxies [PDF]
, 2004 The analysis of the light distribution of galaxy is a crucial step in studying their structural components and therefore it plays a key role in understanding the processes that led to galaxy formation and evolution.
MÉNDEZ ABREU J. +2 more
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A Full Accounting of the Visible Mass in SDSS MaNGA Disk Galaxies
The Astrophysical JournalWe present a study of the ratio of visible mass to total mass in spiral galaxies to better understand the relative amount of dark matter present in galaxies of different masses and evolutionary stages.
Nitya Ravi +2 more
doaj +1 more source
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
doaj +1 more source
Rotating disk galaxies - Yet another case for dark matter
, 1990 We devise a method to probe the systematic variations of the dark matter mass fraction (DM) in the optical region of disk galaxies, based on studying the correlation between galaxy luminosity and the normalized radius where the rotation frequency exceeds
Salucci, P., Persic, M
core +1 more source
Correlations among global photometric properties of disk galaxies
, 2000 Using a two-dimensional galaxy image decomposition technique, we extract global bulge and disk parameters for a complete sample of early-type disk galaxies in the near-infrared K band.
Khosroshahi, Habib G. +2 more
core +1 more source
The Astrophysical JournalWe explore the relationship between galaxy structure, stellar mass, and local galaxy density in three SpARCS clusters at z ∼ 1.6 and compare with field galaxies from the 3D-HST survey.
Westley Brown +8 more
doaj +1 more source