| Issue |
A&A
Volume 475, Number 1, November III 2007
|
|
|---|---|---|
| Page(s) | 277 - 280 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20066951 | |
| Published online | 10 September 2007 | |
VLT/NACO adaptive optics imaging of GSS 30 IRS1: a protostellar binary system?*
Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg, Germany e-mail: [chen;rlau;henning]@mpia-hd.mpg.de
Received:
15
December
2006
Accepted:
28
August
2007
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
-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,
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.
Key words: binaries: close / stars: formation / stars: individual: GSS 30 IRS1
© ESO, 2007
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