Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-05-08
Mon.Not.Roy.Astron.Soc.Lett.378:L24-L28,2007
Astronomy and Astrophysics
Astrophysics
6 pages, 4 figures
Scientific paper
10.1111/j.1745-3933.2007.00312.x
We have used the moving cluster method to identify three L dwarfs and one T dwarf in the Ursa Major/Sirius moving group (age 400 Myr). Five L dwarfs and two T dwarfs are found to belong to the Hyades moving group (age 625 Myr). These L and T dwarfs define 400- and 625- Myr empirical isochrones, assuming that they have the same age. Moving group membership does not guarantee coevality.
Bannister Nigel P.
Jameson Richard F.
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