Pair of brown dwarfs found

[danielj]

I recently read about a pair of brown dwarfs found in space.com.(http://www.space.com/astronotes/astronotes.html).
One which has 25 Jupiter masses and the other with 50 Jupiter masses.Is it a possible addition to extrasolar.ssc or not?Since they are not orbiting a normal star,it?s difficult to say if it go to stars.dat or extrasolar.ssc.

[Evil Dr Ganymede]

The article rather helpfully doesn't tell us where those BDs are located... anyone got any more info on that? It sounds rather intriguing.

[selden]

The official press release is at http://cfa-www.harvard.edu/press/pr0424.html

and the discovery preprint is at http://cfa-www.harvard.edu/~kluhman/paper.pdf

They're members of the Chamaeleon I star forming region.

[Spaceman Spiff]

http://cfa-www.harvard.edu/~kluhman/paper.pdf.

Code: Select all

Comp.   R.A.(J2000)      Dec (J2000)
A       11 01 19.218    -77 32 38.60
B       11 01 19.438    -77 32 37.36


Can't quickly spot a distance.

Spiff.

[selden]

160 +/- 15 parsecs

Ref: Whittet etal. 1997, A&A, 327, 1194
briefly, see:
http://aa.springer.de/papers/7327003/2301194/small.htm

[Evil Dr Ganymede]

I dunno... why couldn't this pair of dwarfs have formed separately and been captured into their distant orbit around eachother during a later encounter?

[Dollan]

I dunno... why couldn't this pair of dwarfs have formed separately and been captured into their distant orbit around eachother during a later encounter?

Is there any information on their orbital eccentricity? I would think that the higher the eccentricity, the more likely that one became bound to the other much later.

Of course, this might be a poor determination.....

...John...