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The stellar content of obscured Galactic giant H II regions

Published online by Cambridge University Press:  26 May 2016

Robert D. Blum
Robert D. Blum*
Affiliation:
Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile

Abstract

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Current research using near-infrared techniques for investigating stellar populations in massive Galactic star clusters is reviewed. In particular, I discuss in some detail a survey of obscured Galactic Giant H ii (GH ii) regions and the associated stellar clusters embedded in them. The regions have been selected as the most luminous radio continuum sources. This selection criteria has the consequence that the observed clusters are among the youngest massive star clusters in the Galaxy. The emergent stellar populations are further studied through near-infrared spectroscopy of the brighter members, a number of which are young stellar objects with signatures of dense circumstellar material which might arise from in or out-flows, or in disks. New results from 8m class telescopes employing velocity resolved near-infrared spectroscopy and high angular resolution mid-infrared imaging hold great promise for future detailed investigations.

Type
Part 3. Location and Distribution of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 458 - 466
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Behrend, R., Maeder, A. 2001, A&A 373, 190.Google Scholar
Blum, R.D., Ramond, T.M., Conti, P.S., Figer, D.F., Sellgren, K. 1997, AJ 113, 1855.Google Scholar
Blum, R.D., Damineli, A., Conti, P.S. 1999, AJ 117, 1392.CrossRefGoogle Scholar
Blum, R.D., Conti, P.S., Damineli, A. 2000, AJ 119, 1860.Google Scholar
Blum, R.D., Damineli, A., Conti, P.S. 2001, AJ 121, 3149.Google Scholar
Brandl, B., Brandner, W., Eisenhauer, F., et al. 1999, A&A (Letters) 352, L69.Google Scholar
Carr, J.S. 1989, ApJ 345, 522.CrossRefGoogle Scholar
Carr, J.S., Tokunaga, A.T., Najita, J., et al. 1993, ApJ (Letters) 411, L37.CrossRefGoogle Scholar
Conti, P.S., Blum, R.D. 2002a, ApJ 564, 827.Google Scholar
Conti, P.S., Blum, R.D. 2002b, in: Crowther, P.A. (ed.), Hot Star Workshop III: The Earliest Phases of Massive Star Birth, ASP-CS 267, 297.Google Scholar
Cotera, A.S., Erickson, E.F., Colgan, S.W.J., et al. 1996, ApJ 461, 750.Google Scholar
Drissen, L., Moffat, A.F.J., Walborn, N.R., Shara, M.M. 1995, AJ 110, 2235.Google Scholar
Dutra, C.M., Bica, E. 2001, A&A 376, 434.Google Scholar
Eenens, P.R.J., Williams, P.M., Wade, R. 1991, MNRAS 252, 300.Google Scholar
Figer, D.F., McLean, I.S., Najarro, F. 1997, ApJ 486, 420.Google Scholar
Figer, D.F., Kim, S.S., Morris, M., et al. 1999, ApJ 525, 750.CrossRefGoogle Scholar
Figuerêdo, E., Blum, R.D., Damineli, A., Conti, P.S. 2002, AJ 124, 2739.Google Scholar
Fuchs, Y., Mirabel, F., Chaty, S., Claret, A., et al. 1999, A&A 350, 891.Google Scholar
Genzel, R., Hollenbach, D., Townes, C.H. 1994, Rep. Prog. Phys. 57, 417.Google Scholar
Ghosh, S.K., Iyengar, K.V.K., Rengarajan, T.N., et al. 1989, ApJ 347, 338.Google Scholar
Hanson, M.M., Conti, P.S., Rieke, M.J. 1996, ApJS 107, 281.Google Scholar
Hanson, M.M., Howarth, I.D., Conti, P.S. 1997, ApJ 489, 698.Google Scholar
Hanson, M.M., Rieke, G.H., Luhman, K.L. 1998, AJ 116, 1915.Google Scholar
Hartmann, L., Kenyon, S.J. 1996, Ann. Review Astron. Astrophys. 34, 207.Google Scholar
Henning, T., Feldt, M., Stecklum, B., Klein, R. 2001, A&A 370, 100.Google Scholar
Hillenbrand, L.A. 1997, AJ 113, 1733.Google Scholar
Hillenbrand, L.A., Carpenter, J.M. 2000, ApJ 540, 236.Google Scholar
Hodapp, K.W., Davis, C.J. 2002, ApJ 575, 291.Google Scholar
van der Hucht, K.A. 2001, New Astron. Reviews 45, 135.Google Scholar
Kaper, L., Bik, A., Hanson, M.M., Comerón, F. 2002, in: Crowther, P.A. (ed.), Hot Star Workshop III: The Earliest Phases of Massive Star Birth, ASP-CS 267, 95.Google Scholar
Knödlseder, J. 2000, A&A 360, 539.Google Scholar
Leandro, C., Damineli, A., Blum, R.D., Conti, P.S. 2003, in: De Buizer, J.M. (ed.), Galactic Star Formation Across the Stellar Mass Spectrum, ASP-CS in press.Google Scholar
McCaughrean, M.J. Stauffer, J.R. 1994, AJ 108, 1382.Google Scholar
Morris, M. Serabyn, E. 1996, Ann. Review Astron. Astrophys. 34, 645.Google Scholar
Nagata, T., Woodward, C.E., Shure, M., Kobayashi, N. 1995, AJ 109, 1676.CrossRefGoogle Scholar
Okumura, S., Mori, A., Nishihara, E., Watanabe, E., Yamashita, T. 2000, ApJ 543, 799.Google Scholar
Okumura, S., Mori, A., Watanabe, E., Nishihara, E., Yamashita, T. 2001, AJ 121, 2089.CrossRefGoogle Scholar
Scoville, N., Kleinmann, S.G., Hall, D.N.B., Ridgway, S.T. 1983, ApJ 275, 201.Google Scholar
Smith, L.F., Mezger, P.G., Biermann, P. 1978, A&A 66, 65.Google Scholar
Vacca, W.D., Garmany, C.D., Shull, J.M. 1996, ApJ 460, 914.Google Scholar
Watson, A.M. Hanson, M.M. 1997, ApJ (Letters) 490, L165.Google Scholar
Zinnecker, H., McCaughrean, M.J., Wilking, B.A. 1993, Levy, E. & Lunine, J. (eds.), in: Protostars and Planets III (Tucson: University of Arizona Press), p. 429.Google Scholar
Zinnecker, H., Brandl, B., Brandner, W., Moneti, A., Hunter, D. 1999, in: Chu, Y.-H., Suntzeff, N. B., Hesser, J. E. & Bohlender, D.A. (eds.), New Views of the Magellanic Clouds, Proc. IAU Symp. No. 190 (San Francisco: ASP), p. 222.Google Scholar