2007A&A...475..277C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.14CEST14:28:45

2007A&A...475..277C - Astronomy and Astrophysics, volume 475, 277-280 (2007/11-3)

VLT/NACO adaptive optics imaging of GSS30 IRS1: a protostellar binary system?

CHEN X.P., LAUNHARDT R. and HENNING T.

Abstract (from CDS):

We present high-resolution near-infrared images of the low-mass Class I young stellar object GSS30 IRS1. The data were retrieved from the ESO archive and acquired in the HKsL'-bands with the adaptive optics system NACO at the ESO Very Large Telescope. We discover two separate components in GSS30 IRS1. The angular separation between the two components is ∼0.15", corresponding to a projected linear separation of 24AU at a distance of 160pc. The brightness contrasts between the two components are ∼1.4mag at H band, 1.5mag at Ks band, and 2.1mag at L' band. The two components detected in GSS30 IRS1 could represent two scattered light structures related to an outflow-disk complex or two young stellar objects embedded in a common disk. Here we discuss these two possibilities, as well as the CO ro-vibrational emission from GSS30 IRS1.

Abstract Copyright:

Journal keyword(s): binaries: close - stars: formation - stars: individual: GSS30 IRS1

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 GSS 30 Y*O 16 26 21.38160 -24 23 04.0524           ~ 193 1
2 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 2923 0
3 HD 161743 * 17 48 57.9259632149 -38 07 07.504425479   7.67 7.20     B9IV 17 0
4 CD-59 6893 PM* 18 32 07.9588067454 -59 27 46.334226476   10.33 9.79     ~ 2 0

    Equat.    Gal    SGal    Ecl

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2019.10.14-14:28:45

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