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Changes in the Dusty Environment of the Recurrent Nova RS Ophiuchi

Published online by Cambridge University Press:  17 January 2013

M. T. Rushton ,
L. A. Helton ,
B. Kaminsky ,
C. E. Woodward ,
Ya. V. Pavlenko  and
A. Evans
M. T. Rushton
Affiliation:
Jeremiah Horrocks Institute, University of Central Lancashire Preston, PR1 2HE, UK email: mrushton@uclan.ac.uk
L. A. Helton
Affiliation:
SOFIA, NASA Ames Research Centre MS 211-3, Moffat Field, CA 94035, USA
B. Kaminsky
Affiliation:
National Academy of Sciences of Ukraine, 27 Zabolonnoho, Kyiv-127, 03680, Ukraine
C. E. Woodward
Affiliation:
Dep. of Astromy, University of Minnesota, 116 Church Street, S. R., Minneapolis, MN 55455, USA
Ya. V. Pavlenko
Affiliation:
National Academy of Sciences of Ukraine, 27 Zabolonnoho, Kyiv-127, 03680, Ukraine
A. Evans
Affiliation:
Astrophysics Group, Keele University, Keele, Staffordshire, ST5 5BG, UK
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Abstract

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We present Spitzer spectroscopy of the recurrent nova RS Ophiuchi obtained on several occasions between 2006 and 2009. The spectra show variability in the silicate dust features at 9.7 μm and 18 μm, which form in the wind of the red giant in the system. We fit the spectra with Dusty models and find changes in the dust temperature, due to changes in the luminosity of the central source. The mass-loss rate of the secondary is a few 10−7M⊙yr−1, typical of a red giant of its type.

Keywords

stars: novaecataclysmic variablesmass losswindsoutflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Issue S281: Binary Paths to Type Ia Supernovae Explosions , July 2011 , pp. 199 - 200
Copyright
Copyright © International Astronomical Union 2013

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