The quest for companions to post-common envelope binaries. II. NSVS14256825 and HS0705+6700

Details The quest for companions to post-common envelope binaries. II. NSVS14256825 and HS0705+6700 The quest for companions to post-common envelope binaries. II. NSVS14256825 and HS0705+6700

2012-02-27

arxiv.org/abs/1202.5990v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Accepted by Astron. and Astrophys

Scientific paper

We report new mid-eclipse times of the two close binaries NSVS14256825 and HS0705+6700, harboring an sdB primary and a low-mass main-sequence secondary. Both objects display clear variations in the measured orbital period, which can be explained by the action of a third object orbiting the binary. If this interpretation is correct, the third object in NSVS14256825 is a giant planet with a mass of roughly 12 M_Jup. For HS0705+6700, we provide evidence that strengthens the case for the suggested periodic nature of the eclipse time variation and reduces the uncertainties in the parameters of the brown dwarf implied by that model. The derived period is 8.4 yr and the mass is 31 M_Jup, if the orbit is coplanar with the binary. This research is part of the PlanetFinders project, an ongoing collaboration between professional astronomers and student groups at high schools.

Affiliated with

Also associated with

No associations

Rating

The quest for companions to post-common envelope binaries. II. NSVS14256825 and HS0705+6700 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 The quest for companions to post-common envelope binaries. II. NSVS14256825 and HS0705+6700, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The quest for companions to post-common envelope binaries. II. NSVS14256825 and HS0705+6700 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-263873