DISCOVERY OF 3 VERY DISTANT M-DWARF AND L-DWARF

Authors
WOLF C MUNDT R THOMPSON D CHAFFEE F BECKWITH SVW FOCKENBROCK R FRIED J HIPPELEIN H HUANG JS VONKUHLMANN B LEINERT C MEISENHEIMER K PHLEPS S ROSER HJ THOMMES E
Citation
C. Wolf et al., DISCOVERY OF 3 VERY DISTANT M-DWARF AND L-DWARF, Astronomy and astrophysics (Berlin), 338(1), 1998, pp. 127-131
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics (Berlin) → ACNP
ISSN journal
00046361
Volume
338
Issue
1
Year of publication
1998
Pages
127 - 131
Database
ISI
SICI code
0004-6361(1998)338:1<127:DO3VDM>2.0.ZU;2-U
Abstract
We report the serendipitous discovery of three very cool distant late type dwarfs. These low-mass stars were found in the 9h- and 16h-fields of the Calar Alto Deep Imaging Survey (CADIS) and named CA09-LMS1, CA 16-LMS1 and CA16-LMS2. CA16-LMS1 is the latest object and has a spectr al type of >M10 (L1 in the new spectral class L). The other two stars have spectral types of about M9 (CA16-LMS2) and M6.5 (CA09-LMS1). We d erive distances of 1150 +/- 300 pc for CA09-LMS1, 330 +/- 80 pc for CA 16-LMS1, and 120 +/- 30 pc for CA16-LMS2. The first two of these three objects are probably the most distant late-type M dwarfs for which op tical spectra have been obtained.