Radial Velocity Studies of Close Binary Stars.X

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Accepted by AJ, August 2005; 5 figures

Scientific paper

10.1086/431226 10.1086/519738

Radial-velocity measurements and sine-curve fits to the orbital velocity variations are presented for the ninth set of ten close binary systems: V395 And, HS Aqr, V449 Aur, FP Boo, SW Lac, KS Peg, IW Per, V592 Per, TU UMi, FO Vir. The first three are very close, possibly detached, early-type binaries and all three require further investigation. Particularly interesting is V395 And whose spectral type is as early as B7/8 for a 0.685 day orbit binary. KS Peg and IW Per are single-line binaries, with the former probably hosting a very low mass star. We have detected a low-mass secondary in an important semi-detached system FO Vir at q=0.125+/-0.005. The contact binary FP Boo is also a very small mass-ratio system, q=0.106+/-0.005. The other contact binaries in this group are V592 Per, TU UMi and the well known SW Lac. V592 Per and TU UMi have bright tertiary companions; for these binaries, and for V395 And, we used a novel technique of the broadening functions arranged into a 2-dimensional image in phase. The case of TU UMi turned out intractable even using this approach and we have not been able to derive a firm radial velocity orbit for this binary. Three systems of this group were observed spectroscopically before: HS Aqr, SW Lac, KS Peg.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Radial Velocity Studies of Close Binary Stars.X 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 Radial Velocity Studies of Close Binary Stars.X, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial Velocity Studies of Close Binary Stars.X will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-284725

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.