SIMBAD references

2003ApJ...585L..69L - Astrophys. J., 585, L69-L72 (2003/March-1)

Discovery of an ultracool subdwarf: LSR 1425+7102, the first star with spectral type sdM8.0.


Abstract (from CDS):

We report the discovery of the coolest subdwarf reported to date. The star LSR 1425+7102 was discovered in our survey for faint high proper motion stars in the northern sky. Follow-up spectroscopy revealed the star to be a very red object with the characteristic signature of M subdwarfs: strong CaH bands but relatively weaker TiO bands. The CaH molecular band at ~6900 Å is particularly strong. By extrapolating the empirical relationship between the strength of the CaH molecular band and that of the subdwarf subtype, we conclude that LSR 1425+7102 is the first star to be discovered with spectral type sdM8.0.

Abstract Copyright:

Journal keyword(s): Galaxy: Stellar Content - Stars: Fundamental Parameters - Stars: Late-Type - Stars: Low-Mass, Brown Dwarfs - Stars: Subdwarfs

Nomenclature: LSR JHHMM+DDMM N=1 added.

Simbad objects: 11

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