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Observations of the IMF in clusters

Published online by Cambridge University Press:  27 April 2011

Joana Ascenso*
Affiliation:
Centro de Astrofísica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal email: [email protected]
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Abstract

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Stars form from molecular clouds, mostly in clusters with tens to tens of thousands of members, and the mass distribution within these clusters, or the Initial Mass Function, seems to be invariable against many parameters and over a wide range of masses. However, masses are a very difficult quantity to assess, and the precision of our determinations of the IMF is systematically lower than usually quoted. I will discuss the process of determining masses from observations and the type of uncertainties associated with this process.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

Ascenso, J., Alves, J., Beletsky, Y., & Lago, M. T. V. T. 2007, A&A, 466, 137Google Scholar
Ascenso, J., Alves, J., & Lago, M. T. V. T. 2009, A&A, 495, 147Google Scholar
Baraffe, I., Chabrier, G., Allard, F., & Hauschildt, P. H. 1998, A&A, 337, 403Google Scholar
Baraffe, I., Chabrier, G., & Gallardo, J. 2009, ApJ, 702, L27CrossRefGoogle Scholar
Bastian, N., Covey, K. R., & Meyer, M. R. 2010, ARA&A, 48, 339Google Scholar
Bastian, N. & Goodwin, S. P. 2006, MNRAS, 369, L9CrossRefGoogle Scholar
Binney, J. & Tremaine, S. 1987, Galactic dynamics (Princeton, NJ, Princeton University Press, 1987, 747 p.)Google Scholar
Bonnell, I. A., Smith, R. J., Clark, P. C., & Bate, M. R. 2010, ArXiv e-printsGoogle Scholar
Caballero, J. A. 2010, A&A, 514, A18+Google Scholar
Chabrier, G. 2003, PASP, 115, 763CrossRefGoogle Scholar
Chabrier, G. 2005, in Astrophysics and Space Science Library, Vol. 327, The Initial Mass Function 50 Years Later, ed. Corbelli, E., Palla, F., & Zinnecker, H., 41–+Google Scholar
Clarke, C. J. 2009, Ap&SS, 324, 121Google Scholar
Elmegreen, B. G. 2005, in Astrophysics and Space Science Library, Vol. 329, Starbursts: From 30 Doradus to Lyman Break Galaxies, ed. de Grijs, R. & González Delgado, R. M., 57–+Google Scholar
Elmegreen, B. G. 2009, in The Evolving ISM in the Milky Way and Nearby GalaxiesGoogle Scholar
Espinoza, P., Selman, F. J., & Melnick, J. 2009, A&A, 501, 563Google Scholar
Haisch, K. E. Jr., Lada, E. A., & Lada, C. J. 2001, ApJ, 553, L153CrossRefGoogle Scholar
Hartmann, L., Cassen, P., & Kenyon, S. J. 1997, ApJ, 475, 770CrossRefGoogle Scholar
Jørgensen, J. K., Harvey, P. M., Evans, N. J. II, et al. 2006, ApJ, 645, 1246CrossRefGoogle Scholar
Krone-Martins, A., Soubiran, C., Ducourant, C., Teixeira, R. & Le Campion, J. F. 2010, A&A, 516, A3+Google Scholar
Kroupa, P. 2001, MNRAS, 322, 231CrossRefGoogle Scholar
Lada, C. J. & Lada, E. A. 2003, ARA&A, 41, 57Google Scholar
Leitherer, C., Schaerer, D., Goldader, J. D., et al. 1999, ApJs, 123, 3CrossRefGoogle Scholar
Lejeune, T. & Schaerer, D. 2001, A&A, 366, 538Google Scholar
Lombardi, M., Lada, C. J., & Alves, J. 2010, A&A, 512, A67+Google Scholar
Luhman, K. L. 2004, in IAU Symposium, Vol. 221, Star Formation at High Angular Resolution, ed. Burton, M. G., Jayawardhana, R., & Bourke, T. L., 237–+Google Scholar
Luhman, K. L., Mamajek, E. E., Allen, P. R., & Cruz, K. L. 2009, ApJ, 703, 399CrossRefGoogle Scholar
Maíz Apellániz, J. & Úbeda, L. 2005, ApJ, 629, 873CrossRefGoogle Scholar
Maschberger, T. & Kroupa, P. 2009, MNRAS, 395, 931CrossRefGoogle Scholar
Mayne, N. J., Naylor, T., Littlefair, S. P., Saunders, E. S., & Jeffries, R. D. 2007, MNRAS, 375, 1220CrossRefGoogle Scholar
Meyer, M. R., Calvet, N., & Hillenbrand, L. A. 1997, AJ, 114, 288Google Scholar
Palla, F. & Stahler, S. W. 1993, ApJ, 418, 414CrossRefGoogle Scholar
Rieke, G. H. & Lebofsky, M. J. 1985, ApJ, 288, 618CrossRefGoogle Scholar
Roman-Duval, J., Jackson, J. M., Heyer, M., et al. 2009, ApJ, 699, 1153CrossRefGoogle Scholar
Román-Zúñiga, C. G., Lada, C. J., Muench, A., & Alves, J. F. 2007, ApJ, 664, 357CrossRefGoogle Scholar
Salpeter, E. E. 1955, ApJ, 121, 161CrossRefGoogle Scholar
Stolte, A., Ghez, A. M., Morris, M., et al. 2008, ApJ, 675, 1278CrossRefGoogle Scholar
Stolte, A., Grebel, E. K., Brandner, W., & Figer, D. F. 2002, A&A, 394, 459Google Scholar