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New Wolf-Rayet galaxies – IMF in starbursts

  • JieHao Huang (a1), Q. S. Gu (a1), L. Ji (a1) and W. Zheng (a2)

Abstract

We report the discovery of two new Wolf-Rayet galaxies: Mrk 1039, and F8208+2816. Two broad WR bumps at 5808Å and 4650Å indicate the presence of WCE and WNL star populations in these two sources. Comparison of the observed EW(HeII λ4686) and EW(CIV λ5808) with recent models of WR populations in young starbursts provide an indication that the stellar initial mass function in some WR galaxies might not be Salpeter-like.

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Copyright

References

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Huang, J.H., Gu, Q.S., Ji, L., Li, W.D., Wei, J.Y., Zheng, W. 1999, ApJ 513, 215
Larson, R. 1998, MNRAS 301, 569
Leitherer, C. 1998, in: Gilmore, G. & Howell, D. (eds.), The Stellar Initial Mass Function, ASP-CS 142, 61
Meyer, M.R. 1996, Ph.D. dissertation, U. of Massachusetts (see 1996, PASP 108, 380)
Scalo, J. 1998, in: Gilmore, G. & Howell, D. (eds.), The Stellar Initial Mass Function, ASP-CS 142, 201
Schaerer, D. 1996, ApJ 467, L17
Schaerer, D., Vacca, W. 1998, ApJ 497, 618
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Proceedings of the International Astronomical Union
  • ISSN: -
  • EISSN: 0074-1809
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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