A Search for H2CO 6cm Emission toward Young Stellar Objects III: VLA Observations

2; (2) National Radio Astronomy Observatory; 3); (3) New Mexico Institute of Mining; (4) Max-Planck-Institut fur Astronomie; (5) Centro de Radioastronomia y Astrofisica; (6) Istituto di Radioastronomia; 7) ((1) University of New Mexico; (7) University of Puerto Rico; Albuquerque

A Search for H2CO 6cm Emission toward Young Stellar Objects III: VLA Observations

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arxiv 0806.1548 v1 submitted 2008-06-09 astro-ph

A Search for H2CO 6cm Emission toward Young Stellar Objects III: VLA Observations

E. D. Araya (1 , 2 , 3) , P. Hofner (2 , W. M. Goss (2) , H. Linz (4) , S. Kurtz (5) , L. Olmi (6

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7) ((1) University of New Mexico Albuquerque USA (2) National Radio Astronomy Observatory Socorro (3) New Mexico Institute of Mining Technology (4) Max-Planck-Institut fur Astronomie Heidelberg Germany (5) Centro de Radioastronomia y Astrofisica UNAM Morelia Mexico (6) Istituto di Radioastronomia CNR Florence Italy (7) University of Puerto Rico San Juan Puerto Rico)

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We report the results of our third survey for formaldehyde (H2CO) 6cm maser emission in the Galaxy. Using the Very Large Array, we detected two new H2CO maser sources (G23.01-0.41 and G25.83-0.18), thus increasing the sample of known H2CO maser regions in the Galaxy to seven. We review the characteristics of the G23.01-0.41 and G25.83-0.18 star forming regions. The H2CO masers in G23.01-0.41 and G25.83-0.18 share several properties with the other known H2CO masers, in particular, emission from rich maser environments and close proximity to very young massive stellar objects.

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