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A variability study of the H2CO 6cm maser in IRAS 18566+0408

Published online by Cambridge University Press:  01 March 2007

E. Araya ,
P. Hofner ,
S. Kurtz ,
H. Linz ,
M. Sewilo ,
L. Olmi  and
C. Watson
E. Araya
Affiliation:
New Mexico Tech, Socorro, NM, USA. NRAO, Socorro, NM, USA.
P. Hofner
Affiliation:
New Mexico Tech, Socorro, NM, USA. NRAO, Socorro, NM, USA.
S. Kurtz
Affiliation:
Centro de Radioastronomìa y Astrofìsica, UNAM, México.
H. Linz
Affiliation:
MPIA, Heidelberg, Germany.
M. Sewilo
Affiliation:
Space Telescope Science Institute, Baltimore, USA.
L. Olmi
Affiliation:
Istituto di Radioastronomia, INAF, Florence, Italy. University of Puerto Rico at Rio Piedras, Puerto Rico.
C. Watson
Affiliation:
Manchester College, USA. email: earaya@nrao.edu
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Abstract

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We report the first detection of a short-duration (<3 months) outburst of an H2CO 6cm maser based on multi-epoch observations of IRAS18566+0408 obtained with Arecibo, the Green Bank Telescope, and the Very Large Array. The H2CO maser was observed nine times between 2002 and 2005. In May 2006 we began a two-year program of monthly monitoring with the Arecibo Telescope. The H2CO maser in IRAS18566+0408 is coincident with a young massive stellar object and the line profile of the maser suggests that the H2CO emission originates from two different regions, perhaps associated with the kinematics of a circumstellar disk.

Keywords

masersstars: formationISM: moleculesradio lines: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S242: Astrophysical Masers and their Environments , March 2007 , pp. 140 - 141
Copyright
Copyright © International Astronomical Union 2008

References

Araya, E., Hofner, P., Kurtz, S., Linz, H., Olmi, L., Sewiło, M. et al. , 2005, ApJ 618, 339CrossRefGoogle Scholar
Araya, E., Hofner, P., Linz, H., Sewiło, M., Watson, C., et al. 2004, ApJS 154, 579CrossRefGoogle Scholar
Araya, E., Hofner, P., Sewiło, M., Goss, M.W., Linz, H., Kurtz, S., et al. 2007a, ApJ submittedGoogle Scholar
Araya, E., Hofner, P., Sewiło, M., Linz, H., Kurtz, S., et al. 2007b, ApJ (Letters) 654, L95CrossRefGoogle Scholar
Zhang, Q. 2005, in: Cesaroni, R., Felli, M., Churchwell, E., & Walmsley, M. (eds.), Massive Star Birth: A Crossroads of Astrophysics (Cambridge: Cambridge Univ. Press), p. 135Google Scholar