2005A&A...438L..29C


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.23CET19:07:16

2005A&A...438L..29C - Astronomy and Astrophysics, volume 438, L29-32 (2005/8-2)

A companion to ABPic at the planet/brown dwarf boundary.

CHAUVIN G., LAGRANGE A.-M., ZUCKERMAN B., DUMAS C., MOUILLET D., SONG I., BEUZIT J.-L., LOWRANCE P. and BESSELL M.S.

Abstract (from CDS):

We report deep imaging observations of the young, nearby star ABPic, a member of the large Tucana-Horologium association. We have detected a faint, red source 5.5'' South of the star with JHK colors compatible with that of a young substellar L dwarf. Follow-up observations at two additional epochs confirm, with a confidence level of 4.7σ, that the faint red object is a companion to ABPic rather than it being a stationary background object. A low resolution K-band spectrum indicates an early-L spectral type for the companion. Finally, evolutionary model predictions based on the JHK photometry of ABPicb indicate a mass of 13 to 14MJup if its age is ∼30Myr. Is ABPicb a massive planet or a minimum mass brown dwarf?

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Journal keyword(s):

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME THA As* 00 00 -62.0           ~ 325 0
2 CD-52 381 PM* 01 52 14.6258722411 -52 19 33.185337378   11.836 10.953 10.42 9.825 K2V(e) 47 0
3 CD-52 381B BD* 01 52 14.63 -52 19 30.0           M9.5 20 0
4 Cl* Melotte 22 KPNO 2 BD* 03 45 43.1604506693 +25 40 23.246972754         17.36 L0 112 0
5 * tet01 Ori C ** 05 35 16.46375 -05 23 22.8486 4.20 5.15 5.13 4.91 4.73 O7Vp 1265 1
6 HD 44627 BY* 06 19 12.9129838711 -58 03 15.524890610   10.01 9.205   8.185 K1V(e) 135 2
7 HD 44627B BD* 06 19 12.94 -58 03 20.9           L1 107 1
8 HD 52359 * 06 59 11.6803796320 -38 49 54.865121533   8.68 8.77     B6V 6 0
9 NAME TW Hya Association As* 11 01.9 -34 42           ~ 802 0
10 TWA 27 BD* 12 07 33.467 -39 32 54.00     19.95 17.99 15.88 M8Ve 308 1
11 TWA 27B BD* 12 07 33.50 -39 32 54.4           L5 229 1
12 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 535 0
13 NAME AB Dor Moving Group MGr ~ ~           ~ 340 0

    Equat.    Gal    SGal    Ecl

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2020.02.23-19:07:16

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