Testing Binary Population Synthesis Models with Hot Subdwarfs

Details Testing Binary Population Synthesis Models with Hot Subdwarfs Testing Binary Population Synthesis Models with Hot Subdwarfs

2009-04-05

arxiv.org/abs/0904.0802v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

3 pages with 2 figures. Uses AIP style files. To appear in Future Directions in Ultraviolet Astronomy, ed. Michael E. VanSteen

Scientific paper

Models of binary star interactions have been successful in explaining the origin of field hot subdwarf (sdB) stars in short period systems, but longer-period systems that formed via Roche-lobe overflow (RLOF) mass transfer from the present sdB to its companion have received less attention. We map sets of initial binaries into present-day binaries that include sdBs and main-sequence stars, distinguishing "observable" sdBs from "hidden" ones. We aim to find out whether (1) the existing catalogues of sdBs are sufficiently fair samples of all the kinds of sdB binaries that theory predicts; or instead whether (2) large predicted hidden populations mandate the construction of new catalogues, perhaps using wide-field imaging surveys such as 2MASS, SDSS, and Galex. We also report on a pilot study to identify hidden subdwarfs, using 2MASS and GALEX data.

Affiliated with

Also associated with

No associations

Rating

Testing Binary Population Synthesis Models with Hot Subdwarfs 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 Testing Binary Population Synthesis Models with Hot Subdwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing Binary Population Synthesis Models with Hot Subdwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-457288