Computer Science
Scientific paper
Feb 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008noao.prop..247v&link_type=abstract
NOAO Proposal ID #2008A-0247
Computer Science
Scientific paper
The New Luyten Two-Tenths catalog contains a large number of high proper motion white dwarf candidates that remain to be spectroscopically confirmed. Using a reduced proper motion diagram and an optical- infrared color diagram we originally selected over 400 candidates, of which only half were already known white dwarfs. A survey conducted at APO's 3.5m and at MSO's 1.9m confirmed the nature of some of the unknown objects, adding 61 cool white dwarfs to the local population. Our last observing run at CTIO spectroscopically confirmed an additional 31 white dwarfs. We propose to pursue our spectroscopic investigation of the remaining 101 white dwarf candidates and of 76 previously known white dwarfs that do not have accurate temperature and gravity measurements. The spectra will allow us to determine the surface composition of the white dwarfs as well as their effective temperature, surface gravity and absolute luminosity using model atmosphere techniques. These new photometric parallaxes will allow us to determine their kinematics and, consequently, their membership to either the thin-, thick-disk or halo populations.
Arazimova Eva
Kawka Adela
Vennes Stephane
No associations
LandOfFree
High proper motion white dwarfs: Atmospheric properties 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 High proper motion white dwarfs: Atmospheric properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High proper motion white dwarfs: Atmospheric properties will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1528636