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New Wolf-Rayet galaxies – IMF in starbursts

Published online by Cambridge University Press:  25 May 2016

JieHao Huang ,
Q. S. Gu ,
L. Ji  and
W. Zheng
JieHao Huang
Affiliation:
Astronomy Department, Nanjing University, Nanjing, 210093, China, United Lab for Optical Astronomy, The Chinese Academy of Sciences, 100080, China
Q. S. Gu
Affiliation:
Astronomy Department, Nanjing University, Nanjing, 210093, China, United Lab for Optical Astronomy, The Chinese Academy of Sciences, 100080, China
L. Ji
Affiliation:
Astronomy Department, Nanjing University, Nanjing, 210093, China, United Lab for Optical Astronomy, The Chinese Academy of Sciences, 100080, China
W. Zheng
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218-2686

Abstract

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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.

Type
Part 5. Wolf-Rayet stars and other massive stars in starburst galaxies: the case of Wolf-Rayet galaxies (integrated spectra)
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 600 - 601
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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