Results 1 to 10 of about 2,625,442 (312)
Secular evolution in galaxies [PDF]
Symposium - International Astronomical Union, 1985 We have adapted the N-body code of Van Albada (1982) to study the secular evolution of a hot collisionless stellar component (E galaxy or galactic bulge) due to slow changes in another component of the same galaxy. Our equilibrium starting model is a non-rotating triaxial ellipsoid with axial ratios 1.3:1.4:2.0; the effects of the “other component” are
A. May, Colin Norman, T. S. van Albada
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Galaxy harassment and the evolution of clusters of galaxies [PDF]
Nature, 1995 Disturbed spiral galaxies with high rates of star formation pervaded clusters of galaxies just a few billion years ago, but nearby clusters exclude spirals in favor of ellipticals. ``Galaxy harassment" (frequent high speed galaxy encounters) drives the morphological transformation of galaxies in clusters, provides fuel for quasars in subluminous hosts ...
B. Moore +4 more
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Journal of Astronomical Telescopes, Instruments, and Systems, 2021 The Galaxy Evolution Probe (GEP) is a concept for a mid- and far-infrared space observatory to measure key properties of large samples of galaxies with large and unbiased surveys. GEP will attempt to achieve zodiacal light and Galactic dust emission photon background-limited observations by utilizing a 6 Kelvin, 2.0 meter primary mirror and sensitive ...
Glenn, Jason +23 more
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EVOLUTION OF THE STARS AND GAS IN GALAXIES. [PDF]
, 2022 Essentially everything of astronomical interest is either part of a galaxy, or from a galaxy, or otherwise relevant to the origin or evolution of galaxies. Diverse examples are that the isotropic composition of meteorites provides clues to the history of
B. Tinsley
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A systematic metallicity study of DustPedia galaxies reveals evolution in the dust-to-metal ratios [PDF]
Astronomy & Astrophysics, 2019 Observations of evolution in the dust-to-metal ratio allow us to constrain the dominant dust processing mechanisms. In this work, we present a study of the dust-to-metal and dust-to-gas ratios in a sub-sample of ~500 DustPedia galaxies.
P. D. Vis +19 more
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Ionization state of inter-stellar medium in galaxies: evolution, SFR-M * -Z dependence, and ionizing photon escape [PDF]
, 2013 We present a systematic study for ionization state of inter-stellar medium in galaxies at z=0-3 with ~140,000 SDSS galaxies and 108 intermediate to high redshift galaxies from the literature, using an ionization-parameter sensitive line ratio of [OIII ...
K. Nakajima, M. Ouchi
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Galaxy evolution in protoclusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 14 pages, 9 figures, accepted for publication in ...
Stuart I. Muldrew +2 more
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The EAGLE project: Simulating the evolution and assembly of galaxies and their environments [PDF]
, 2014 We introduce the Virgo Consortium's EAGLE project, a suite of hydrodynamical simulations that follow the formation of galaxies and black holes in representative volumes.
J. Schaye +24 more
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The evolution of galaxy sizes [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractWe present a study of galaxy sizes in the local Universe as a function of galaxy environment, comparing clusters and the general field. Galaxies with radii and masses comparable to high-z massive and compact galaxies represent 4.4% of all galaxies more massive than 3 × 1010M⊙ in the field.
B. Poggianti +12 more
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Multiscale magnetic fields in spiral galaxies: evolution and reversals [PDF]
, 2011 Context. Magnetic fields in nearby, star-forming galaxies reveal large-scale patterns, as predicted by dynamo models, but also a variety of small-scale structures.
D. Moss +5 more
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