Brown dwarf discovered at TYC 2534-698-1

View previous topic View next topic Go down

Brown dwarf discovered at TYC 2534-698-1

Post by Sirius_Alpha on 9th November 2008, 9:06 pm

Discovery of a Low-Mass Companion to the Solar-Type Star TYC 2534-698-1
http://arxiv.org/abs/0811.1053

Abstract wrote:Brown dwarfs and low-mass stellar companions are interesting objects to study since they occupy the mass region between deuterium and hydrogen burning. We report here the serendipitous discovery of a low-mass companion in an eccentric orbit around a solar-type main sequence star. The stellar primary, TYC 2534-698-1, is a G2V star that was monitored both spectroscopically and photometrically over the course of several months. Radial velocity observations indicate a minimum mass of 0.037 M_solar and an orbital period of ~103 days for the companion. Photometry outside of the transit window shows the star to be stable to within ~6 millimags. The semi-major axis of the orbit places the companion in the 'brown dwarf desert' and we discuss potential follow-up observations that could constrain the mass of the companion.

_________________
Caps Lock: Cruise control for 'Cool'!
avatar
Sirius_Alpha
Admin
Admin

Number of posts : 3528
Location : Earth
Registration date : 2008-04-06

View user profile http://solar-flux.forumandco.com/

Back to top Go down

Re: Brown dwarf discovered at TYC 2534-698-1

Post by Edasich on 10th November 2008, 6:09 am

A brown dwarf object orbitin' around a solar kin is always welcome Smile
avatar
Edasich
dM star
dM star

Number of posts : 1530
Location : Tau Ceti g - Mid Latitudes
Registration date : 2008-06-02

View user profile

Back to top Go down

Re: Brown dwarf discovered at TYC 2534-698-1

Post by Lazarus on 10th November 2008, 7:02 am

The question is whether this is actually a brown dwarf or a star in a low-inclination orbit: the fact it is in the middle of the brown dwarf desert means we should probably regard the mass with suspicion.
avatar
Lazarus
dG star
dG star

Number of posts : 2894
Registration date : 2008-06-12

View user profile

Back to top Go down

Re: Brown dwarf discovered at TYC 2534-698-1

Post by Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum