Results 11 to 20 of about 43,226 (214)

Similar Signatures of Coplanar Gas Inflow and Disk Warps in Galactic Gas Kinematic Maps

open access: yesThe Astrophysical Journal, 2023
Hydrodynamic simulations suggest that galactic gas disks form when coplanar gas spirals into the inner regions of the disk. We recently presented a simple modified accretion disk model of viscous galactic disks in which star formation is fed by a radial ...
Enci Wang, Simon J. Lilly
doaj   +1 more source

Hidden Imprints of Minor Merging in Early-Type Galaxies: Inner Polar Rings and Inclined Large-Scale Gaseous Disks In S0s

open access: yesGalaxies, 2015
I discuss my latest observational data and ideas about decoupled gaseous subsystems in nearby lenticular galaxies. As an extreme case of inclined gaseous disks, I demonstrate a sample of inner polar disks, derive their incidence, about 10% among the ...
Olga Sil’chenko
doaj   +1 more source

Radio Observations of the AGN and Gas in Low Surface Brightness Galaxies [PDF]

open access: yes, 2006
LSB galaxies have low metallicities, diffuse stellar disks, and massive HI disks. We have detected molecular gas in two giant LSB galaxies, UGC 6614 and F568-6. A millimeter continuum source has been detected in UGC 6614 as well.
F. Combes   +5 more
core   +4 more sources

Extended UV Disk (XUV-disk) Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractMotivated by the GALEX discovery of recent star formation in outermost regions of M83 and NGC4625, we have investigated the nature of the XUV disks with follow-up high resolution imaging and spectroscopy, and attempted to detect them at other wavelengths (IR, Hα).
Luciana Bianchi   +3 more
openaire   +1 more source

Understanding the Fundamental Plane and the Tully Fisher Relation

open access: yesFrontiers in Astronomy and Space Sciences, 2020
The relation between early type galaxy size, surface brightness and velocity dispersion, “the fundamental plane,” has long been understood as resulting from equilibrium in their largely pressure supported stellar dynamics.
Jeremy Mould
doaj   +1 more source

INTERLOCKING RESONANCE PATTERNS IN GALAXY DISKS [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2013
We have developed a method for finding dynamical resonances in disk galaxies using the change in sense of the radial component of the in-plane velocity at a resonance radius. Using simulations we show that we would expect to find these changes at corotation radii, with a weaker effect at the ILR and a small effect at the OLR. The method works well with
Font, J.   +7 more
openaire   +4 more sources

The Chemodynamics of the Stellar Populations in M31 from APOGEE Integrated-light Spectroscopy

open access: yesThe 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
doaj   +1 more source

The Local Galaxy Density and the Bulge-to-Disk Ratio of Disk Galaxies [PDF]

open access: yesThe Astrophysical Journal, 1995
LATEX file, 19 pages, figures available on ...
GIURICIN G.   +4 more
openaire   +3 more sources

Two characteristics of thick disks formed through minor mergers: Orbital eccentricities and stellar excess

open access: yesEPJ Web of Conferences, 2012
In this contribution, we will present two results we have recently obtained in studying the impact of satellite(s) accretions on stellar disks, and that concern: (1) the distribution of the eccentricities of stars in thick disks; (2) the characteristics ...
van Driel W.   +3 more
doaj   +1 more source

Kinematic classifications of local interacting galaxies: implications for the merger/disk classifications at high-z [PDF]

open access: yes, 2015
The classification of galaxy mergers and isolated disks is key for understanding the relative importance of galaxy interactions and secular evolution during the assembly of galaxies.
Casey, Caitlin M.   +8 more
core   +3 more sources

Home - About - Disclaimer - Privacy