Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...475..277c&link_type=abstract
Astronomy and Astrophysics, Volume 475, Issue 1, November III 2007, pp.277-280
Astronomy and Astrophysics
Astrophysics
1
Binaries: Close, Stars: Formation, Stars: Individual:, Gss 30 Irs1
Scientific paper
Aims:We present high-resolution near-infrared images of the low-mass Class I young stellar object GSS 30 IRS1. Methods: The data were retrieved from the ESO archive and acquired in the HK_sL'-bands with the adaptive optics system NACO at the ESO Very Large Telescope. Results: We discover two separate components in GSS 30 IRS1. The angular separation between the two components is ~0.15 arcsec, corresponding to a projected linear separation of 24 AU at a distance of 160 pc. The brightness contrasts between the two components are ~1.4 mag at H band, 1.5 mag at Ks band, and 2.1 mag at L' band. The two components detected in GSS 30 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 GSS 30 IRS1.
Based on data from the ESO/ST-ECF Science Archive Facility.
Chen Ping Xing
Henning Th
Launhardt Ralf
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