SIMBAD references

2005A&A...441..653C - Astronomy and Astrophysics, volume 441, 653-661 (2005/10-2)

New neighbours. VI. Spectroscopy of DENIS nearby stars candidates.

CRIFO F., PHAN-BAO N., DELFOSSE X., FORVEILLE T., GUIBERT J., MARTIN E.L. and REYLE C.

Abstract (from CDS):

We present spectra of 36 nearby star candidates and 3 red giant candidates, identified in the DENIS database. 32 of the dwarf candidates are nearby red dwarfs, with spectral types from M 5.5 to M 8.5. Out of 11 targets with low proper motion (µ<0.1arcsec/yr) but a Reduced Proper Motion above an inclusive threshold, 9 are red dwarfs. The 4 contaminants are all reddened F-K main sequence stars, and could have been eliminated by checking for small well-known high latitude molecular clouds. These stars might be of interest as probes of interstellar absorption. For the red dwarfs we derive spectral types and spectroscopic distances, using a new calibration of the PC3 spectral index to absolute magnitudes in the I, J, H and K photometric bands. We confirm 2 new members of the 12pc volume (2 new M 8.5), and one M 7.5 NLTT object closer than 10pc; and show that one quarter of the stars with photometric distances under 30pc have too small a proper motion for inclusion in the NLTT catalog.

Abstract Copyright:

Journal keyword(s): stars: low-mass, brown dwarfs - solar neighbourhood - stars: fundamental parameters - stars: distances

VizieR on-line data: <Available at CDS (J/A+A/441/653): table1.dat table3.dat>

Simbad objects: 70

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