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A kinematical search for Wolf-Rayet nebulae in the irregular galaxy IC 10

Published online by Cambridge University Press:  25 May 2016

Almudena Bullejos ,
Margarita Rosado ,
Leonid N. Georgiev ,
César Esteban  and
J.H. Borissova
Almudena Bullejos
Affiliation:
Instituto de Astronomía UNAM, Apartado postal 70-264, 04510 México D.F., México
Margarita Rosado
Affiliation:
Instituto de Astronomía UNAM, Apartado postal 70-264, 04510 México D.F., México
Leonid N. Georgiev
Affiliation:
Instituto de Astronomía UNAM, Apartado postal 70-264, 04510 México D.F., México
César Esteban
Affiliation:
Institute de Astrofísica de Canarias, La Laguna, Tenerife, España
J.H. Borissova
Affiliation:
Institute of Astronomy, Bulgarian Academy of Sciences, 72 Tsarigradsko chaussèe, BG–1784 Sofia, Bulgaria

Abstract

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In this work we report the search for nebulosities associated with the candidate Wolf-Rayet stars listed in Massey el al (1992) in the irregular galaxy IC 10, based upon Hα, [S II], and [O III] direct images and imaging Fabry-Pérot spectroscopy. Approximately 95% of the WR candidate stars we analyzed are found within nebulae. For most of these nebulae, we find broad wings on their Hα radial-velocity profiles. For some of the nebulae, the Hα velocity profiles are broadened with a typical velocity difference of 80–100 kms1.

Type
Part 4. Wolf-Rayet stars and other hot massive stars in the Galactic Center and in Local Group giant H II regions (individual stars)
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 474 - 475
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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