Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...243...71v&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 243, no. 1, March 1991, p. 71-92. ZWO-supported research.
Astronomy and Astrophysics
Astrophysics
66
Gas Dynamics, H I Regions, Hydrogen Atoms, Interstellar Gas, Spiral Galaxies, Barred Galaxies, Lenticular Bodies, Mass To Light Ratios, Star Formation Rate
Scientific paper
It is considered that the H I velocity fields in most early-type galaxies can be described by circular rotation, sometimes in a considerably warped H I distribution. The derived rotation curves are essentially flat, sometimes out to 10 optical disk scale lengths, denoting the presence of massive dark halos, which is substantiated by detailed disk/bulge/halo mass model fits to the surface photometry and rotation curves of 3 galaxies. The most probable origins of the H I gas in SO galaxies seem to be either accretion from another galaxy, though not in the recent past, or a burnt-out disk scenario, for the lenticulars with an outer H I ring, where the denser inner H I disk has been consumed in star formation.
Driel Wim van
van Woerden Hugo
No associations
LandOfFree
Distribution and motions of atomic hydrogen in lenticular galaxies. XI - A summary of H I observations and evolutionary scenarios 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 Distribution and motions of atomic hydrogen in lenticular galaxies. XI - A summary of H I observations and evolutionary scenarios, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distribution and motions of atomic hydrogen in lenticular galaxies. XI - A summary of H I observations and evolutionary scenarios will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1601410