2005A&A...440..967S


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.19CEST00:03:03

2005A&A...440..967S - Astronomy and Astrophysics, volume 440, 967-972 (2005/9-4)

The dM4.5e star G124-62 and its binary L dwarf companion DENIS-P J1441-0945. Common proper motion, distance, age, and masses.

SEIFAHRT A., GUENTHER E. and NEUHAEUSER R.

Abstract (from CDS):

We present astrometric and photometric measurements of the field binary L1 dwarf DENIS-P J1441-0945. Analysis of archival HST images and photometric parallax measurements give a distance of 34±7pc and a proper motion close to that of the nearby high proper motion star G124-62. Comparison of SuperCOSMOS and 2MASS images confirms that these objects form a common proper motion pair, while spectroscopy of G124-62 shows it to be a dM4.5e star. The kinematics show that this system is a member of the Hyades supercluster. The resulting age constraints for the system are 500-800 Myr and the mass of each component of DENIS-P J1441-0945 is 0.072+0.010–0.018M.

Abstract Copyright:

Journal keyword(s): astrometry - solar neighbourhood - stars: emission-line, Be - stars: low-mass, brown dwarfs

Simbad objects: 5

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Number of rows : 5

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 NVSS J005353+003620 Rad 00 53 53.00 +00 36 17.0           ~ 1 0
2 BD+20 2465 Er* 10 19 36.2808024653 +19 52 12.014037746   10.82 9.52 9.19   dM3 1183 0
3 G 124-62 PM* 14 41 35.8319298724 -09 46 38.702209386   12.58 11.80 12.33   dM4.5e 23 0
4 DENIS J144137.2-094558 BD* 14 41 37.1670168475 -09 45 59.155474431       20.030 17.234 L1+L1 48 0
5 NAME Hyades Moving Group MGr ~ ~           ~ 245 0

    Equat.    Gal    SGal    Ecl

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2021.04.19-00:03:03

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