Very low mass M dwarfs--stars or brown dwarfs in disguise?

Details Very low mass M dwarfs--stars or brown dwarfs in disguise? Very low mass M dwarfs--stars or brown dwarfs in disguise?

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....108.1456r&link_type=abstract

The Astronomical Journal, vol. 108, no. 4, p. 1456-1461

Astronomy and Astrophysics

Astronomy

18

Dwarf Stars, Kinematics, Late Stars, Line Spectra, Radial Velocity, Stellar Composition, Stellar Luminosity, Stellar Mass, Stellar Spectra, Astronomical Photometry, Astronomical Spectroscopy, Lithium, Sodium, Visible Spectrum

Scientific paper

We have used radial velocity and proper motion observations to determine the space motions of a sample of 25 low-luminosity M dwarfs. We find that the solar motion and velocity dispersions of these stars are similar to the kinematics of a sample of more luminous, earlier type M dwarfs. However, there is evidence to indicate that when objects selected by photometric criteria alone are considered, the kinematics are more characteristic of an approximately 3 X 108 year old population. This suggest that the faintest known stars may be younger on average than the local M dwarfs in the Galactic disk, indicating the possible presence of a number of brown dwarfs or transition objects in our sample of very low-mass objects.

Affiliated with

Also associated with

No associations

Rating

Very low mass M dwarfs--stars or brown dwarfs in disguise? 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 Very low mass M dwarfs--stars or brown dwarfs in disguise?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Very low mass M dwarfs--stars or brown dwarfs in disguise? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1069867