Results 21 to 30 of about 4,067 (216)
The Astrophysical Journal Supplement Series, 2023 In our Galaxy, star formation occurs in a variety of environments, with a large fraction of stars formed in clusters hosting massive stars. OB stars have an important feedback on the evolution of protoplanetary disks orbiting around nearby young stars ...
M. G. Guarcello +12 more
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The Chemodynamics of the Stellar Populations in M31 from APOGEE Integrated-light Spectroscopy
The Astrophysical Journal, 2023 We present an analysis of nearly 1000 near-infrared, integrated-light spectra from APOGEE in the inner ∼7 kpc of M31. We utilize full-spectrum fitting with A-LIST simple stellar population spectral templates that represent a population of stars with the ...
Benjamin J. Gibson +10 more
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On the scaling relations of disk galaxies [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractThe physical background of scaling laws of disk galaxies is reviewed. The match between analytically derived and observed scaling laws is briefly discussed. Accurate modeling of the fraction of baryons that end up populating a disk, and the conversion efficiency of those into stars, remains a challenging task for numerical simulations.
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vcdisk.py: Rotation curves of thick galaxy disks
, 2022 vcdisk: Rotation curves of thick galaxy disks A minimal python module to solve Poisson's equation in a thick galactic disk. This is useful to compute the circular velocity on the disk plane of a galaxy with observed surface density profile and ...
Lorenzo Posti
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, 2008 We present a new set of multi-million particle SPH simulations of the formation of disk dominated galaxies in a cosmological context. Some of these galaxies are higher resolution versions of the models already described in Governato et al (2007). To correctly compare simulations with observations we create artificial images of our simulations and from ...
Governato, F, Mayer, L, Brook, C
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Models of Late-type Disk Galaxies: 1-D Versus 2-D
Open Astronomy, 2014 We investigate the effects of stochasticity on the observed galaxy parameters by comparing our stochastic star formation two-dimensional (2-D) galaxy evolution models with the commonly used one-dimensional (1-D) models with smooth star formation. The 2-D
Mineikis T., Vansevičius V.
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Tidal Thickening of Galaxy Disks [PDF]
, 1997 3 pages, including two PostScript figures, LaTeX (lamuphys.sty). To be published in the proceedings of the "Galaxy Scaling Relations: Origins, Evolution and Applications" Third ESO-VLT Workshop, November 18-20 ...
Reshetnikov, Vladimir, Combes, Francoise
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THE GROWTH OF THE DISK GALAXY UGC8802 [PDF]
The Astrophysical Journal, 2012 6 pages, 2 figures, accepted by ...
Chang, R. X., Shen, S. Y., Hou, J. L.
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Circumnuclear Keplerian Disks in Galaxies
The Astrophysical Journal, 1998 In this paper we demonstrate the possibility of inferring the presence of Keplerian gaseous disks using optical ground-based telescopes properly equipped. We have modeled the peculiar bidimensional shape of the emission lines in a sample of five S0-Sa galaxies as due to the motion of a gaseous disk rotating in the combined potential of a central point ...
BERTOLA, FRANCESCO +5 more
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Supercomputer simulations of disk galaxies
Astronomical & Astrophysical Transactions, 2001 The time evolution of models for an isolated disk of highly flattened galaxies of stars is investigated by direct integration of the Newtonian equations of motion of N=30,000 identical stars over a time span of many galactic rotations. Certain astronomical implications of the simulations to actual disk-shaped (i.e.
Griv, Evgeny +4 more
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