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New neighbours: IV. 30 DENIS late-M dwarfs between 15 and 30 parsecs

N. Phan-Bao·J. Guibert·F. Crifo·X. Delfosse·T. Forveille·J. Borsenberger·N. Epchtein·P. Fouque·G. Simon
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Abstract

We present 30 new nearby (d<30 pc) red dwarf candidates, with estimated spectral types M6 to M8. 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 arcsec/yr, 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.

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N. Phan-Bao, J. Guibert, F. Crifo, X. Delfosse, T. Forveille, J. Borsenberger, N. Epchtein, P. Fouque, G. Simon. 2001-10-27. New neighbours: IV. 30 DENIS late-M dwarfs between 15 and 30 parsecs. https://doi.org/10.1051/0004-6361%3A20011461

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