Hostname: page-component-76fb5796d-dfsvx Total loading time: 0 Render date: 2024-04-25T18:11:06.569Z Has data issue: false hasContentIssue false
  • English
  • Français

A review of H2CO 6cm masers in the Galaxy

Published online by Cambridge University Press:  01 March 2007

E. Araya ,
P. Hofner  and
W. M. Goss
E. Araya
Affiliation:
National Radio Astronomy Observatory, P.O. Box 0, Socorro, NM 87801, USA New Mexico Institute of Mining and Technology, Physics Department, 801 Leroy Place, Socorro, NM 87801, USA email: earaya@nrao.edu
P. Hofner
Affiliation:
National Radio Astronomy Observatory, P.O. Box 0, Socorro, NM 87801, USA New Mexico Institute of Mining and Technology, Physics Department, 801 Leroy Place, Socorro, NM 87801, USA email: earaya@nrao.edu
W. M. Goss
Affiliation:
New Mexico Institute of Mining and Technology, Physics Department, 801 Leroy Place, Socorro, NM 87801, USA email: earaya@nrao.edu
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present a review of the field of formaldehyde (H2CO) 6cm masers in the Galaxy. Previous to our ongoing work, H2CO 6cm masers had been detected in the Galaxy only toward three regions: NGC7538 IRS1, Sgr B2, and G29.96–0.02. Current efforts by our group using the Very Large Array, Arecibo, and the Green Bank Telescope have resulted in the detection of four new H2CO 6cm maser regions. We discuss the characteristics of the known H2CO masers and the association of H2CO 6cm masers with very young regions of massive star formation. We also review the current ideas on the pumping mechanism for H2CO 6cm masers.

Keywords

masersstars: formationISM: moleculesHII regionsradio lines: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S242: Astrophysical Masers and their Environments , March 2007 , pp. 110 - 119
Copyright
Copyright © International Astronomical Union 2008

References

Araya, E., Baan, W., & Hofner, P. 2004a, ApJS 154, 541Google Scholar
Araya, E., Hofner, P., Churchwell, E., & Kurtz, S. 2002, ApJS 138, 63CrossRefGoogle Scholar
Araya, E., et al. 2007b, ApJ submittedGoogle Scholar
Araya, E., Hofner, P., Goldsmith, P., Slysh, S., & Takano, S. 2003, ApJ 596, 556Google Scholar
Araya, E., Hofner, P., Goss, W. M., Kurtz, S., Linz, H., & Olmi, L. 2006a, ApJ (Letters) 643, L33Google Scholar
Araya, E., Hofner, P., Goss, W. M., Linz, H., Kurtz, S., & Olmi, L. 2007a, ApJS, 170, 152CrossRefGoogle Scholar
Araya, E., Hofner, P., Kurtz, S., Linz, H., Olmi, L., Sewiło, M., Watson, C., & Churchwell, E. 2005, ApJ 618, 339CrossRefGoogle Scholar
Araya, E., Hofner, P., Linz, H., Sewiło, M., Watson, C., Churchwell, E., Olmi, L., & Kurtz, S. 2004b, ApJS 154, 579CrossRefGoogle Scholar
Araya, E., Hofner, P., Olmi, L., Kurtz, S., & Linz, H. 2006b, AJ 132, 1851Google Scholar
Araya, E., Hofner, P., Sewiło, M., Linz, H., Kurtz, S., Olmi, L., Watson, C., & Churchwell, E. 2007c, ApJ (Letters) 654, L95CrossRefGoogle Scholar
Baan, W. A., & Haschick, A. D. 1995, ApJ 454, 745CrossRefGoogle Scholar
Beuther, H., Zhang, Q., Bergin, E. A., et al. 2007, A&A, accepted (arXiv:0704.0518)Google Scholar
Bockelée-Morvan, D., & Crovisier, J. 1992, A&A 264, 282Google Scholar
Boland, W., & de Jong, T. 1981, A&A 98, 149Google Scholar
Cesaroni, R., Churchwell, E., Hofner, P., Walmsley, C. M., & Kurtz, S. 1994, A&A 288, 903Google Scholar
Churchwell, E. 2002, ARA&A 40, 27Google Scholar
Davis, C. J., Moriarty-Schieven, G., Eislöffel, J., Hoare, M. G., & Ray, T. P. 1998, AJ 115, 1118CrossRefGoogle Scholar
De Buizer, J. M., & Minier, V. 2005, ApJ (Letters) 628, L151Google Scholar
Downes, D., & Wilson, T. L. 1974, ApJ (Letters) 191, L77CrossRefGoogle Scholar
Downes, D., Wilson, T. L., Bieging, J., & Wink, J. 1980, A&AS 40, 379Google Scholar
Evans, N. J. II, Zuckerman, B., Morris, G., & Sato, T. 1975a, ApJ 196, 443CrossRefGoogle Scholar
Evans, N. J. II, Zuckerman, B., Sato, T., & Morris, G. 1975b, ApJ 199, 383Google Scholar
Forster, J. R., Goss, W. M., Gardner, F. F., & Stewart, R. T. 1985, MNRAS 216, 35CrossRefGoogle Scholar
Forster, J. R., Goss, W. M., Wilson, T. L., Downes, D., & Dickel, H. R. 1980, A&A (Letters) 84, L1Google Scholar
Gardner, F. F., Whiteoak, J. B., & Forster, J. R. 1986, MNRAS 218, 385Google Scholar
Garrison, B. J., Lester, W. A. Jr., Miller, W. H., & Green, S. 1975, ApJ (Letters) 200, L175Google Scholar
Green, S. 1991, ApJS 76, 979CrossRefGoogle Scholar
Green, S., Garrison, B. J., Lester, W. A. Jr., & Miller, W. H. 1978, ApJS 37, 321CrossRefGoogle Scholar
Hoffman, I. M., Goss, W. M., & Palmer, P. 2007, ApJ 654, 971CrossRefGoogle Scholar
Hoffman, I. M., Goss, W. M., Palmer, P., & Richards, A. M. S. 2003, ApJ 598, 1061CrossRefGoogle Scholar
Jaruschewski, S., Chandra, S., Varshalovich, D. A., & Kegel, W. H. 1986, A&AS 63, 307Google Scholar
Johnston, K. J., Henkel, C., & Wilson, T. L. 1984, ApJ (Letters) 285, L85CrossRefGoogle Scholar
Kraus, S., Balega, Y., Elitzur, M., Hofmann, K.-H., Preibisch, Th., Rosen, A., Schertl, D., Weigelt, G., & Young, E. T. 2006, A&A 455, 521Google Scholar
Lekht, E. E., Munitsyn, V. A., & Tolmachev, A. M. 2004, Astron. Rep. 48, 200CrossRefGoogle Scholar
Litvak, M. M. 1970, ApJ (Letters) 160, L133Google Scholar
Loren, R. B., Sandqvist, A., & Wootten, A. 1983, ApJ 270, 620CrossRefGoogle Scholar
Martín-Pintado, J., Gaume, R. A., Rodríguez-Fernández, N., de Vicente, P., & Wilson, T. L. 1999, ApJ 519, 667CrossRefGoogle Scholar
Martín-Pintado, J., Wilson, T. L., Gardner, F. F., & Henkel, C. 1985, A&A 142, 131Google Scholar
Mehringer, D. M., Goss, W. M., & Palmer, P. 1994, ApJ 434, 237Google Scholar
Mehringer, D. M., Goss, W. M., & Palmer, P. 1995, ApJ 452, 304Google Scholar
Minier, V., Booth, R., & Conway, J. 1998, A&A (Letters) 336, L5Google Scholar
Minier, V., Booth, R., & Conway, J. 2000, A&A 362, 1093Google Scholar
Minier, V., Conway, J., & Booth, R. 2001, A&A 369, 278Google Scholar
Olmi, L., Cesaroni, R., Hofner, P., Kurtz, S., Churchwell, E., & Walmsley, C. M. 2003, A&A 407, 225Google Scholar
Palmer, P., Zuckerman, B., Buhl, D., & Snyder, L. E. 1969, ApJ (Letters) 156, L147CrossRefGoogle Scholar
Pestalozzi, M. R., Elitzur, M., Conway, J. E., & Booth, R. S. 2004, ApJ (Letters) 603, L113CrossRefGoogle Scholar
Pratap, P., Menten, K. M., & Snyder, L. E. 1994, ApJ (Letters) 430, L129CrossRefGoogle Scholar
Pratap, P., Snyder, L. E., & Batrla, W. 1992, ApJ 387, 241CrossRefGoogle Scholar
Rodríguez, M. I., Allen, R. J., Loinard, L., & Wiklind, T. 2006, ApJ 652, 1230CrossRefGoogle Scholar
Rots, A. H., Dickel, H. R., Forster, J. R., & Goss, W. M. 1981, ApJ (Letters) 245, L15CrossRefGoogle Scholar
Sato, F., Hasegawa, T., Whiteoak, J. B., & Miyawaki, R. 2000, ApJ 535, 857CrossRefGoogle Scholar
Sewiło, M., Churchwell, E., Kurtz, S., Goss, W. M., & Hofner, P. 2004a, ApJ 605, 285Google Scholar
Sewiło, M., Watson, C., Araya, E., Churchwell, E., Hofner, P., & Kurtz, S. 2004b, ApJS 154, 553Google Scholar
Snyder, L. E., Buhl, D., Zuckerman, B., & Palmer, P. 1969, Phys. Rev. Lett. 22, 679CrossRefGoogle Scholar
Snyder, L. E., Palmer, P., & de Pater, I. 1990, ICARUS 86, 289Google Scholar
Snyder, L. E., Palmer, P., & de Pater, I. 1989, AJ 97, 246CrossRefGoogle Scholar
Thaddeus, P. 1972, ApJ 173, 317Google Scholar
Townes, C. H., & Cheung, C. 1969, ApJ (Letters) 157, L103Google Scholar
Townes, C. H., & Schawlow, A. L. 1975, Microwave Spectroscopy (New York: Dover)Google Scholar
Tucker, K. D., Tomasevich, G. R., & Thaddeus, P. 1971, ApJ 169, 429Google Scholar
Watson, C., Araya, E., Sewiło, M., Churchwell, E., Hofner, P., & Kurtz, S. 2003, ApJ 587, 714CrossRefGoogle Scholar
Whiteoak, J. B., & Gardner, F. F. 1983, MNRAS 205, 27CrossRefGoogle Scholar
Wilson, T. L., Martín-Pintado, J., Gardner, F. F., & Henkel, C. 1982, A&A (Letters) 107, L10Google Scholar
Young, K. E., Lee, J. E., Evans, N. J. II, Goldsmith, P. F., & Doty, S. D. 2004, ApJ 614, 252Google 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
Zuckerman, B., Palmer, P., & Rickard, L. J. 1975, ApJ 197, 571Google Scholar