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RAMSES II Raman Search for Extragalactic Symbiotic Stars

Published online by Cambridge University Press:  30 December 2019

Rodolfo Angeloni ,
Denise R. Gonçalves ,
Ruben J. Diaz  and
the RAMSES II Team
Rodolfo Angeloni
Affiliation:
Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, La Serena, Chile email: [email protected]
Denise R. Gonçalves
Affiliation:
Observatório do Valongo, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
Ruben J. Diaz
Affiliation:
Gemini Observatory, Southern Operations Center, La Serena, Chile
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Abstract

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Symbiotic stars (SySts) are long-period interacting binaries composed of a hot compact star, an evolved giant star, and a tangled network of gas and dust nebulae. Presently, we know 252 SySts in the Milky Way and 62 in external galaxies. However, these numbers are still in striking contrast with the predicted population of SySts in our Galaxy. In this contribution, I present the concept and the early results from RAMSES II (Raman Search for Extragalactic Symbiotic Stars), a Gemini/GMOS Upgrade Project which makes use of the Raman OVI 6830Å band as a powerful photometric tool to identify new SySts, within and beyond the Galaxy.

Keywords

stars: AGB and post-AGBbinaries: symbiotictechniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 347 - 348
Copyright
© International Astronomical Union 2019 

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