2005A&A...439.1127S


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.04CET20:53:01

2005A&A...439.1127S - Astronomy and Astrophysics, volume 439, 1127-1130 (2005/9-1)

Three active M dwarfs within 8 pc: L 449-1, L 43-72, and LP 949-15.

SCHOLZ R.-D., LO CURTO G., MENDEZ R.A., HAMBARYAN V., COSTA E., HENRY T.J. and SCHWOPE A.D.

Abstract (from CDS):

Three nearby star candidates were selected as bright 2MASS point sources without associated optical sources, i.e. with potentially large proper motions, subsequently confirmed by multi-epoch optical data from the SuperCOSMOS Sky Surveys. All three objects are listed in the NLTT catalogue of high proper motion stars. Follow-up spectroscopic observations allowed us to classify L 449-1 as M 4.0e dwarf at 5.7pc, L 43-72 as M 4.5e dwarf at 7.2pc, and LP 949-15 as M 5.0e dwarf at 6.1pc, using known absolute JHKs magnitudes of dwarfs with corresponding spectral types, respectively. All three stars exhibit Hα emission lines, and all three can be identified with bright X-ray sources. The available ROSAT light curves of two of the objects show typical flare-like variability. Thus, all three stars are active, very close potential neighbours of the Sun, previously not mentioned as such, certainly deserving further attention. In particular, these are very promising candidates for trigonometric parallax programs.

Abstract Copyright:

Journal keyword(s): surveys - astrometry - stars: kinematics - stars: low-mass, brown dwarfs - Galaxy: solar neighbourhood - X-rays: stars

Simbad objects: 8

goto Full paper

goto View the reference in ADS

Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 G 272-61B Er* 01 39 01.6334059022 -17 57 01.121866655           M6V 798 0
2 CD-35 2213 LM* 05 17 22.9070205099 -35 21 54.639072551   13.26 11.69 10.48 8.91 M4Ve 38 0
3 Ross 47 BY* 05 42 09.2672965388 +12 29 21.611736198 14.264 13.130 11.509 10.298 8.709 M4V 230 0
4 L 595-22 PM* 05 56 24.7419816722 -27 51 32.362978169   12.31 12.38     sdG 147 0
5 V* AP Col Er* 06 04 52.1487274682 -34 33 35.772083870     12.96 11.49 9.60 M5 59 0
6 L 43-72 LM* 18 11 15.35472 -78 59 23.1108   14.27 12.62 12.23 9.49 M4.5 22 0
7 CD-44 12736 PM* 18 36 25.9487430436 -44 18 36.919462094   10.83 10.22     G0 199 0
8 * eps Ind B BD* 22 04 10.52064 -56 46 57.7452     24.12 20.8 15.60 T1V+T6V 134 2

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2005A&A...439.1127S and select 'bookmark this link' or equivalent in the popup menu


2021.03.04-20:53:01

© Université de Strasbourg/CNRS

    • Contact