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

被引：45

作者：

Phan-Bao, N

Guibert, J

Crifo, F

Delfosse, X

Forveille, T

Borsenberger, J

Epchtein, N

Fouqué, P

Simon, G

机构：

[1] Observ Paris, DASGAL, Ctr Anal Images, F-75014 Paris, France

[2] Observ Paris, DASGAL, UMR 8633, F-75014 Paris, France

[3] Univ Grenoble 1, Lab Astrophys Grenoble, F-38041 Grenoble, France

[4] Canada France Hawaii Telescope Corp, Kamuela, HI 96743 USA

[5] Inst Astrophys, F-75014 Paris, France

[6] Observ Cote Azur, Dept Fresnel, F-06304 Nice 4, France

[7] Observ Paris, DESPA, F-92195 Meudon, France

[8] European So Observ, Santiago 19, Chile

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 380卷 / 02期

关键词：

astrometry; proper motions; low mass stars;

D O I：

10.1051/0004-6361:20011461

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：590 / 598

页数：9

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[1] Image subtraction using a space-varying kernel [J].