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Binary systems: implications for outflows & periodicities relevant to masers

Published online by Cambridge University Press:  24 July 2012

Nishant K. Singh  and
Avinash A. Deshpande
Nishant K. Singh
Affiliation:
Raman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore 560080, India emails: nishant@rri.res.in, desh@rri.res.in Joint Astronomy Programme, Indian Institute of Science, Bangalore 560 012, India
Avinash A. Deshpande
Affiliation:
Raman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore 560080, India emails: nishant@rri.res.in, desh@rri.res.in
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Abstract

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Bipolar molecular outflows have been observed and studied extensively in the past, but some recent observations of periodic variations in maser intensity pose new challenges. Even quasi-periodic maser flares have been observed and reported in the literature. Motivated by these data, we have tried to study situations in binary systems with specific attention to the two observed features, i.e., the bipolar flows and the variabilities in the maser intensity. We have studied the evolution of spherically symmetric wind from one of the bodies in the binary system, in the plane of the binary. Our approach includes the analytical study of rotating flows with numerical computation of streamlines of fluid particles using PLUTO code. We present the results of our findings assuming simple configurations, and discuss the implications.

Keywords

masersradio lines: general(stars:) binaries: generalstars: windsoutflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S287: Cosmic Masers - from OH to H0 , January 2012 , pp. 93 - 97
Copyright
Copyright © International Astronomical Union 2012

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