A&A 380, 590-598 (2001)
DOI: 10.1051/0004-6361:20011461
New neighbours: IV. 30 DENIS late-M dwarfs between 15 and 30 parsecs
N. Phan-Bao1, 2, J. Guibert1, 2, F. Crifo2, X. Delfosse3, T. Forveille3, 4, J. Borsenberger5, N. Epchtein6, P. Fouqué7, 8 and G. Simon21 Centre d'Analyse des Images, DASGAL, Observatoire de Paris, 61 avenue de l'Observatoire, 75014 Paris, France
2 Observatoire de Paris (DASGAL/UMR-8633), 75014 Paris, France
3 Laboratoire d'Astrophysique de Grenoble, Université J. Fourier, BP 53, 38041 Grenoble, France
4 Canada-France-Hawaii Telescope Corporation, 65-1238 Mamalahoa Highway, Kamuela, HI 96743, USA
5 Institut d'Astrophysique de Paris, 98bis boulevard Arago, 75014 Paris
6 Observatoire de la Côte d'Azur, Département Fresnel, BP 4229, 06304 Nice Cedex 4, France
7 DESPA, Observatoire de Paris, 5 place J. Janssen, 92195 Meudon Cedex, France
8 European Southern Observatory, Casilla 19001, Santiago 19, Chile
(Received 16 July 2001 / Accepted 15 October 2001 )
Abstract
We present 30 new nearby (d< 30 pc) red dwarf candidates, with
estimated spectral types M 6 to M 8. 26 were directly selected from the
DENIS database, and another 4 were first extracted from the LHS catalogue
and cross-identified with a DENIS counterpart. Their proper motions were
measured on the MAMA measuring machine from plates spanning 13 to 48 years,
and are larger than 0.1 yr-1, ruling out the possibility that
they are giants. Their distances were estimated from
the DENIS colours and IR colour-magnitude relations and range
between 15 and 30 pc.
Key words: astrometry -- proper motions -- low mass stars
Offprint request: N. Phan-Bao, bn.phan@obspm.fr
SIMBAD Objects
© ESO 2001

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