3 papers
astro-ph2008
Spectroscopic monitoring of Southern Galactic O and WN stars: State of the Art in 2007
R. Gamen, R. Barba, N. Morrell +5
We are conducting a spectroscopic monitoring of O and WN -type stars in our Galaxy. In this work, we summarize some of our first results related to the search for radial-velocity v…
astro-ph2003
Optical CCD Observations of Eta Carinae at La Plata Observatory
E. Fernandez Lajus, R. Gamen, M. Schwartz +5
In 2003.5 Eta Carinae was expected to undergo an X-ray eclipse (Damineli et al., 2000). In the framework of an international campaign to obtain multi-wavelength observations of thi…
astro-ph2002
The Massive Wolf-Rayet Binary HDE318016 (=WR 98)
Roberto C. Gamen, Virpi S. Niemela
We present the discovery of OB type absorption lines superimposed to the emission line spectrum, and the first double-lined orbital elements for the massive Wolf-Rayet binary HDE 3…