Hot subdwarfs proper motions (Thejll+ 1997)

Details Hot subdwarfs proper motions (Thejll+ 1997) Hot subdwarfs proper motions (Thejll+ 1997)

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ycat..33170689t&link_type=abstract

VizieR On-line Data Catalog: J/A+A/317/689. Originally published in: 1997A&A...317..689T

Physics

Stars: Subdwarf, Proper Motions

Scientific paper

We report on first results from an ongoing program to measure and analyze proper motions for hot subdwarf and white dwarf stars, with the aim of determining to which stellar population sdB stars (in the V magnitude range 10.5 to 14.5) belong. Ours is the largest sample of hot subdwarf proper motions measured to date. Our kinematic analysis suggests that the parent population of these hydrogen-rich sdB stars is as old or older than the old disk. We measure the absolute magnitude of the sdB in the field as MV=4.5, providing independent confirmation of absolute V magnitude estimates for these stars from clusters and spectroscopic analyses. Provided it can be shown that the sdO stars evolve from the sdB, then the sdO absolute V magnitude distribution is about 1 magnitude brighter than for the sdB, and 1 magnitude wider. (2 data files).

Affiliated with

Also associated with

No associations

Rating

Hot subdwarfs proper motions (Thejll+ 1997) 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 Hot subdwarfs proper motions (Thejll+ 1997), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot subdwarfs proper motions (Thejll+ 1997) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-775112