Results 11 to 20 of about 959 (264)
The Stellar Kinematics of Elliptical Galaxies [PDF]
Symposium - International Astronomical Union, 1987 The kinematic properties of elliptical galaxies are summarized. New developments are discussed in four areas: (i) the Faber-Jackson relation and the role of second parameters (ii) the luminosity-rotation relation (iii) the figures of elliptical galaxies and (iv) the mass-to-light ratio as a function of radius.
openaire +2 more sources
Stellar kinematics and interstellar turbulence [PDF]
Symposium - International Astronomical Union, 1979 It is well known that the velocity dispersion of nearby stars increases systematically with age, and this fact is conventionally explained by postulating that stars are randomly accelerated by encounters with massive gas clouds (Spitzer & Schwarzschild 1951, 1953; Wielen 1977).
openaire +2 more sources
, 2021 Integral field spectroscopic (IFS) surveys have revolutionised our understanding of the stellar dynamics in external galaxies at z~0. Studies of gas-phase dynamics and deep slit-based spectroscopy at high redshift show that galaxies have experienced significant dynamical evolution since z~1.
openaire +2 more sources
Kinematics of stellar substructures in the small magellanic cloud
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We present a kinematic analysis of the Small Magellanic Cloud using 3700 spectra extracted from the European Southern Observatory archive. We used data from Gaia and near-infrared photometry to select stellar populations and discard Galactic foreground stars. The sample includes main-sequence red giant branch and red clump stars,
Dalal El Youssoufi +8 more
openaire +2 more sources
Investigation of the Stellar Population of Several Polar Ring Galaxies
Galaxies, 2016 We present results of our investigation of two multi-spin galaxies which were taken from the catalog of polar ring galaxies. All of them possess nucleus-like knots.
Liliya Shalyapina +4 more
doaj +1 more source
SIGNATURES OF KINEMATIC SUBSTRUCTURE IN THE GALACTIC STELLAR HALO [PDF]
The Astrophysical Journal, 2015 v2 journal version: 12 pages, 9 figures, 1 ...
Lisanti M., Spergel D. N., Madau P.
openaire +3 more sources
Oort Constants and Local Stellar Kinematics from GCNS
Universe, 2023 Oort constants and local kinematics are vital parameters with which to study the structure and dynamics of the Milky Way. When GCNS was published, it provided a clean sample of stars in the solar vicinity, which gives us an ideal tool with which to ...
Sufen Guo, Zhaoxiang Qi
doaj +1 more source
The Kinematics of Galactic Stellar Disks
Monthly Notices of the Royal Astronomical Society, 1998 11 pages, LaTeX (including 7 figures), uses paspconf.sty and epsf.sty, to be published in Proceedings of the EC Summer School on 'Astrophysical Discs', eds J. A. Sellwood and J.
Merrifield, M. R., Kuijken, K.
openaire +3 more sources
KINEMATIC DISCOVERY OF A STELLAR STREAM LOCATED IN PISCES [PDF]
The Astrophysical Journal, 2013 We report the kinematic discovery of the Pisces Stellar Stream (PSS), at Galactic longitude of roughly l=135 degrees and longitude between -39 < b < -36 deg. We originally identified this halo substructure from velocities of red giant branch stars in Sloan Digital Sky Survey (SDSS) Data Release 8, and confirmed its presence in turnoff stars from ...
Martin, Charles +3 more
openaire +3 more sources
The Astronomical Journal, 2023 Stellar kinematics and metallicity are key to exploring formation scenarios for galactic disks and halos. In this work, we characterized the relationship between kinematics and photometric metallicity along the line of sight to M31's disk.
Ivanna Escala +7 more
doaj +1 more source