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 ~015,
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
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.