Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-10T16:43:25.835Z Has data issue: false hasContentIssue false
  • English
  • Français

The infrared environments of masers associated with star formation

Published online by Cambridge University Press:  01 March 2007

James De Buizer
James De Buizer*
Affiliation:
Gemini Observatory, Casilla 603, La Serena, Chile email: jdebuizer@gemini.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.

The near infrared (1–2μm) and the thermal infrared (3–25μm) trace many of the environments in which masers are thought to reside, including shocks, outflows, accretion disks, and the dense medium near protostars. After a number of recent surveys it has been found that there is a higher detection rate of mid-IR emission towards masers than cm radio continuum emission from UC HII regions, and that the mid-IR emission is actually more closely cospatial to the maser locations. A high percentage of water and methanol masers that are not coincident with the UC HII regions in massive star forming regions are likely to be tracing outflows and extremely young high mass stars before the onset of the UC HII region phase. After a decade of groundwork supporting the hypothesis that linearly distributed class II methanol masers may generally trace accretion disks around young massive stars, compelling evidence is mounting that these masers may generally be associated with outflows instead. Substantiation of this claim comes from recent outflow surveys and high angular resolution mid-IR imaging of the maser environments.

Keywords

masersaccretiondisksISM: jets and outflowsstars: formationstars: early-typeinfrared: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S242: Astrophysical Masers and their Environments , March 2007 , pp. 102 - 109
Copyright
Copyright © International Astronomical Union 2008

References

Avery, L. W., & Chiao, M. 1996, ApJ 463, 642CrossRefGoogle Scholar
Beuther, H., Walsh, A., Schilke, P., Sridharan, T. K., Menten, K. M., & Wyrowski, F. 2002, A&A 390, 289Google Scholar
Cesaroni, R., Churchwell, E., Hofner, P., Walmsley, C. M., & Kurtz, S. 1994, A&A 288, 903Google Scholar
Chini, R., Hoffmeister, V., Kimeswenger, S., Nielbock, M., Nürnberger, D., Schmidtobreick, L., & Sterzik, M. 2004, Nature 429, 155CrossRefGoogle Scholar
De Buizer, J. M., Pi na, R. K., & Telesco, C. M. 2000, ApJ (Supplement) 130, 437Google Scholar
De Buizer, J. M., 2002a, Cosmic Masers: From Proto-Stars to Black Holes, IAU Symposium 206 (San Francisco: ASP), vol. 206, p. 18Google Scholar
De Buizer, J. M., Watson, A. M., Radomski, J. T., Pi na, R. K., & Telesco, C. M. 2002a, ApJL 564, 101CrossRefGoogle Scholar
De Buizer, J. M., Walsh, A. J., Pi na, R. K., Phillips, C. J., & Telesco, C. M. 2002b, ApJ 564, 327CrossRefGoogle Scholar
De Buizer, J. M., 2003, MNRAS 341, 277CrossRefGoogle Scholar
De Buizer, J. M., Radomski, J. T., Telesco, C. M., & Pi na, R. K. 2003, ApJ 598, 1127CrossRefGoogle Scholar
De Buizer, J. M., Radomski, J. T., Telesco, C. M., & Pi na, R. K. 2005, ApJ (Supplement) 156, 179Google Scholar
De Buizer, J. M., Osorio, M., & Calvet, N. 2005, ApJ 635, 452CrossRefGoogle Scholar
De Buizer, J. M., 2006, ApJL 642, 57CrossRefGoogle Scholar
De Buizer, J. M., 2007, ApJL 654, 147CrossRefGoogle Scholar
De Buizer, J. M., Redman, R. O., Feldman, P. A., Longmore, S., & Caswell, J. 2007, in preparationGoogle Scholar
Feldman, P. A., Redman, R. O., De Buizer, J. M., di Francesco, J., & Carey, S. J. 2005, Astrochemistry: Recent Successes and Current Challenges, IAU Symposium 231 (Poster Session), p. 111Google Scholar
Hofner, P., & Churchwell, E. 1996, A&A (Supplement) 120, 283Google Scholar
McCaughrean, M. J. et al. , 1998, ApJL 492, 157CrossRefGoogle Scholar
Maxia, C., Testi, L., Cesaroni, R., & Walmsley, C. M. 2001, A&A 371, 287Google Scholar
Norris, R. P., Whiteoak, J. B., Caswell, J. L., Wieringa, M. H., & Gough, R. G. 1993, ApJ 412, 222CrossRefGoogle Scholar
Olmi, L., Cesaroni, R., Hofner, P., Kurtz, S., Churchwell, E., & Walmsley, C. M. 2003, A&A 407, 225Google Scholar
Osorio, M., Lizano, S., & D'Alessio, P. 1999, ApJ 525, 808CrossRefGoogle Scholar
Robitaille, T. P., Whitney, B. A., Indebetouw, R., & Wood, K. 2007, ApJ (Supplement) 169, 328Google Scholar
Su, Y.-N., et al. 2004, ApJL 616, 39CrossRefGoogle Scholar
Walsh, A. J., Burton, M. G., Hyland, A. R., & Robinson, G. 1998, MNRAS 301, 640CrossRefGoogle Scholar
Walsh, A. J., Bertoldi, F., Burton, M. G., & Nikola, T. 2001, MNRAS 326, 36CrossRefGoogle Scholar
Walsh, A. J., Macdonald, G. H., Alvey, N. D. S., Burton, M. G., & Lee, J.-K. 2003, A&A 410, 597Google Scholar