Hostname: page-component-745bb68f8f-hvd4g Total loading time: 0 Render date: 2025-01-13T11:14:41.612Z Has data issue: false hasContentIssue false
  • English
  • Français

30 Doradus: The Low-Mass Stars

Published online by Cambridge University Press:  25 May 2016

Hans Zinnecker ,
Bernhard Brandl ,
Wolfgang Brandner ,
Andrea Moneti  and
Deidre Hunter
Hans Zinnecker
Affiliation:
Astrophysikalisches Institut, An der Sternwarte 16, D-14482 Potsdam, Germany
Bernhard Brandl
Affiliation:
Cornell University, Department of Astronomy, Ithaca, NY 14853, USA
Wolfgang Brandner
Affiliation:
JPL/IPAC, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
Andrea Moneti
Affiliation:
ISO Science Operations Centre — VILSPA, Villafranca, 28080 Madrid, Spain
Deidre Hunter
Affiliation:
Lowell Observatory, 1400 W. Mars Hill Road, Flagstaff, AZ 86001, USA

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 first analysis of our deep NICMOS/HST F160W images of the 30 Doradus cluster, aimed at detecting the low-mass stellar population (M ≤ 2 M⊙). We find that the infrared luminosity function keeps rising towards the faint end and that there is no indication of a low-mass IMF cut-off down to at least 1.5 M⊙. We also find a change of slope (steepening) in the luminosity function as a function of radial distance from the cluster center. The faintest stars we have detected have H=22.5 mag, corresponding to about M = 0.4 M⊙ at an age of 2 Myr.

Type
Part 3. Massive Stars and 30 Doradus
Information
Symposium - International Astronomical Union , Volume 190: New Views of the Magellanic Clouds , 1999 , pp. 222 - 226
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Brandl, B., Sams, B.J., Bertoldi, F., et al. 1996, ApJ, 466, 254 Google Scholar
Chariot, S., Ferrari, F., Mathews, G.T., & Silk, J. 1993, ApJ, 419, L57 Google Scholar
d'Antona, F., & Mazzitelli, I. 1994, ApJS, 90, 467 Google Scholar
Eisenhauer, F., Quirrenbach, A., & Zinnecker, H. 1998, ApJ, 498, 278 CrossRefGoogle Scholar
Hunter, D.A., Shaya, E.J., Holtzman, J.A., et al. 1995, ApJ, 448, 179 CrossRefGoogle Scholar
Massey, P., & Hunter, D.A. 1998, ApJ, 493, 180 Google Scholar
Larson, R.B. 1998, MNRAS, 301, 569 Google Scholar
Stetson, P.B. 1987, PASP, 99, 191 Google Scholar
Zinnecker, H., & Moneti, A. 1998, in NICMOS and the VLT , ESO Conf. & Workshop Proc. No. 55, p. 136 (eds. Freudling, W. & Hook, R.)Google Scholar
Zinnecker, H. 1996, in The interplay between massive star formation, the ISM, and galaxy evolution , eds. Kunth, D. et al., p. 249 Google Scholar