Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...197..105b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 197, no. 1-2, May 1988, p. 105-122.
Astronomy and Astrophysics
Astrophysics
55
Disk Galaxies, Mass To Light Ratios, Signal To Noise Ratios, Spiral Galaxies, Stellar Motions, Galactic Evolution, High Resolution, Radial Velocity, Velocity Distribution
Scientific paper
High-resolution spectroscopic long slit observations of NGC 3198 and NGC 3938 are presented. In NGC 3198, the velocity dispersion in the radial direction is shown to decrease exponentially with radius, with a central dispersion of 65 + or - 10 km/s. Assuming a constant value of Q = 1.7, the old disk of NGC 3198 has a constant mass-to-light ratio of 7 + or - 1.5 (in B). In NGC 3938, the stellar velocity dispersion in the direction perpendicular to the disk is between 3040 km/s centrally, and the mass-to-light ratio may have a constant value of about 1.1 (old disk, in B). A linear relation is found between the velocity dispersion and absolute magnitude for six late-type spiral galaxies.
No associations
LandOfFree
The stellar kinematics of the spiral galaxies NGC 3198 and NGC 3938 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The stellar kinematics of the spiral galaxies NGC 3198 and NGC 3938, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The stellar kinematics of the spiral galaxies NGC 3198 and NGC 3938 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-853617