Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....102..914m&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 102, Sept. 1991, p. 914-926.
Astronomy and Astrophysics
Astronomy
91
Dark Matter, Dwarf Galaxies, Globular Clusters, Radial Velocity, Charge Coupled Devices, Irregular Galaxies, Milky Way Galaxy, Spheroids
Scientific paper
Precise radial velocities of 44 stars and four globular clusters located in two fields of the Fornax dwarf spheroidal galaxy are obtained on the basis of photon-counting echelle spectroscopy with a resolution of approximately 14 km/s. BV CCD photometry of the giant branch of Fornax in both fields are presented as well. A variety of kinematic and photometric criteria are used to identify 10-12 probable nonmembers in the present sample of spectroscopically observed stars. Based on the most probable members, the mean heliocentric systemic velocity of Fornax is 53.0 + or - 1.8 km/s, with no evidence of any significant rotation about the minor axis. The intrinsic velocity dispersion of the stars in Fornax's central field is 9.9 + or - 1.7 km/s, while for the outer field the velocity dispersion is 12.0 + or - 2.8 km/s. The true central velocity dispersion is not more than 1.6 km/s larger than the observed central dispersions for a number of reasonable models.
Fischer Philippe
Kunkel William
Mateo Mario
Olszewski Edward
Welch Douglas L.
No associations
LandOfFree
A kinematic study of the Fornax dwarf spheroidal galaxy 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 A kinematic study of the Fornax dwarf spheroidal galaxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A kinematic study of the Fornax dwarf spheroidal galaxy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1333851