2002AJ....124.1127C

Query : 2002AJ....124.1127C

2002AJ....124.1127C - Astron. J., 124, 1127-1131 (2002/August-0)

The nature of faint companions to G-type stars from adaptive optics.

CHAKRABORTY A., GE J. and DEBES J.H.

Abstract (from CDS):

High spatial resolution (0".30) near-IR photometric observations using the adaptive optics of the Mount Wilson 100 inch (2.5 m) telescope and the Penn State IR Imager and Spectrograph have revealed faint companions to HD 190067 and HIP 13855. HD 190067B is found to be of mass 0.075-0.1 M☉ with an age from 0.5 Gyr to a few gigayears. HIP 13855B is a low-mass star (age 100-500 Myr) of mass between 0.1 and 0.2 M☉. Further near-IR spectroscopic observations will be necessary to classify their spectral types precisely.

Abstract Copyright: ∼

Journal keyword(s): instrumentation: high angular resolution - Stars: Low-Mass, Brown Dwarfs - Techniques: Photometric

Simbad objects: 8

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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 - 2026 		#notes
1 HD 225023 * 00 02 46.0266921072 +35 48 55.681958088 7.790 7.700 7.520     A0 57 0
2 HD 17332 ** 02 47 27.42146 +19 22 18.5443           G1V+G5V 103 0
3 MBM 12 MoC 02 56 50 +19 32.0           ~ 230 1
4 BD+18 382 ** 02 58 23.7705662712 +19 13 45.433792236   9.39 8.79     G0III 28 0
5 HD 22480 * 03 38 08.2387520664 +35 10 52.263756660   9.07 8.95     A0 17 0
6 HD 42581B BD* 06 10 34.80 -21 52 00.0           T6.5 549 0
7 HD 190067 PM* 20 02 34.1553139987 +15 35 31.468310729 8.098 7.854 7.115 6.696 6.304 K0VFe-0.9 151 0
8 HD 190067B PM* 20 02 34.3596669481 +15 35 31.991333573           ~ 6 0

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