Issue |
A&A
Volume 404, Number 1, June II 2003
|
|
---|---|---|
Page(s) | L17 - L20 | |
Section | Letters | |
DOI | https://doi.org/10.1051/0004-6361:20030617 | |
Published online | 26 May 2003 |
Letter to the Editor
Detection of abundant solid methanol toward young low mass stars*
1
Leiden Observatory, PO Box 9513, 2300 RA Leiden, The Netherlands
2
Institut d'Astrophysique Spatiale, Bât. 121, CNRS UMR8617, Université Paris XI, 91405 Orsay Cedex, France
3
Astronomical Institute “Anton Pannekoek”, University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands
Corresponding author: K. M. Pontoppidan, pontoppi@strw.leidenuniv.nl
Received:
2
April
2003
Accepted:
24
April
2003
We present detections of the absorption band at due to solid methanol toward three low-mass young stellar
objects located in the Serpens and Chameleon molecular cloud
complexes. The sources were observed as part of a large spectroscopic survey of ≈40 protostars. This is the first detection of solid methanol in the
vicinity of low mass (
) young stars and shows
that the formation of methanol does not depend on the
proximity of massive young stars. The abundances of solid methanol
compared to water ice for the three sources are in the range 15–25%
which is comparable to those for the most methanol-rich massive sources known.
The presence of abundant methanol in the circumstellar environment of
some low mass young stars has important consequences for the formation
scenarios of methanol and more complex
organic species near young solar-type stars.
Key words: astrochemistry / circumstellar matter / dust, extinction / ISM: molecules / infrared: ISM
© ESO, 2003
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