Results 131 to 140 of about 80,653 (165)

A massive compact quiescent galaxy at z = 2 with a complete Einstein ring in JWST imaging. [PDF]

Nat Astron
van Dokkum P, Brammer G, Wang B, Leja J, Conroy C.   +4 more
europepmc   +1 more source

Feedback mechanisms stopping the star formation in a pair of massive galaxies in the early Universe

Pérez-González P, D'Eugenio F, Pino BRD, Perna M, Uebler H, Maiolino R, Arribas S, Lamperti I, Bunker A, Carniani S, Charlot S, Willott C, Böker T, Parlanti E, Scholtz J, Venturi G, Barro G, Costantin L, Navarro IM, Dunlop J, Magee D, Cresci G.   +21 more
europepmc   +1 more source

Extended hot dust emission around the earliest massive quiescent galaxy

Ji Z, Williams C, Rieke G, Lyu J, Alberts S, Sun F, Helton J, Rieke M, Shivaei I, D'Eugenio F, Tacchella S, Robertson B, Zhu Y, Maiolino R, Bunker A, Sun Y, Willmer C.   +16 more
europepmc   +1 more source

Secular evolution in disk galaxies [PDF]

Reviews of Modern Physics, 2014
Minor revisions to become as it will appear in the ...
J A Sellwood
exaly   +3 more sources

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Disk galaxies and their environment

Astronomische Nachrichten, 2009
AbstractEnvironments of disk‐dominated galaxies and simple disk systems‐compared to systems with bulges‐provide a means to explore how environment relates to galaxy morphology. Our approach focuses on systems with edge‐on disks where disk‐to‐bulge ratios and disk flattening can be unambiguously determined and focuses on simple disks as evolutionary ...
J S Gallagher, Eva K Grebel
exaly   +3 more sources

DENSITY WAVES IN DISK GALAXIES

Symposium - International Astronomical Union, 1967
Density waves in the nature of those proposed by B. Lindblad are described by detailed mathematical analysis of collective modes in a disk-like stellar system. The treatment is centered around a hypothesis of quasi-stationary spiral structure. We examine (a) the mechanism for the maintenance of this spiral pattern, and (b) its consequences on the ...
C. C. Lin, F. H. Shu
openaire   +1 more source

Edge‐on disk galaxies in the SDSS DR6: Fractions of bulgeless and other disk galaxies [PDF]

Astronomische Nachrichten, 2009
AbstractThe aim of this study is to determine the fractions of different spiral galaxy types, especially bulgeless disks, from a complete and homogeneous sample of 15 127 edge‐on disk galaxies extracted from the sixth data release from the Sloan Digital Sky Survey.
exaly   +4 more sources

Counterrotating Galaxies and Accretion Disks

Annals of the New York Academy of Sciences, 1998
ABSTRACT:Theoretical interest in astrophysical disks with counterrotating components of stars and/or gas has been stimulated by recently discovered counterrotating spiral and S0 galaxies. A variety of physical processes can occur in counterrotating disks.
openaire   +2 more sources

The Disk of the Galaxy

1992
In this review, I will concentrate on the observational aspects of the dynamical evolution of the disk population. First I will discuss some general properties of disks, such as their structure and kinematics and the thick disks. The next section is on the kinematical properties of the galactic disk near the sun, including some important new results on
openaire   +1 more source