Other
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20517001r&link_type=abstract
American Astronomical Society Meeting 205, #170.01; Bulletin of the American Astronomical Society, Vol. 36, p.1623
Other
Scientific paper
A detailed analysis of 32 Halo white dwarf candidates identified by Oppenheimer et al. is presented, based on model atmosphere fits to observed energy distributions, built from optical BVRI and infrared JHK magnitudes. Effective temperatures and atmospheric compositions for all objects have been determined, as well as their masses and cooling ages for those with measured trigonometric parallaxes. The sample is compared with other Halo white dwarf candidates and Disk white dwarfs to study the nature of these objects in terms of reduce proper motion diagrams, tangential velocities, and stellar ages. We confirm the conclusions of an earlier analysis, based on photographic magnitudes of the same sample, that some white dwarfs born in the young Disk may have high velocities with respect to the Local Standard of Rest, and that total stellar ages must be derived in order to associate a white dwarf with the old Halo population.
M.T.R. received partial support from FONDECYT 1010404, and FONDAP 15010003. P.B. aknowledges partial support from NSERC Canada and Fund FQRNT (Quebec).
Bergeron Pierre
Currie Malcolm J.
Dufour Patrick
Hamuy Mario
Lajoie Charles-Philippe
No associations
LandOfFree
Photometric Analysis of Halo White Dwarf Candidates 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 Photometric Analysis of Halo White Dwarf Candidates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometric Analysis of Halo White Dwarf Candidates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1645507