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High Resolution XMM-Newton Data of Nova Outbursts using Warm & Hot Absorber Models

Published online by Cambridge University Press:  17 January 2013

Ş. Balman  and
Y. Pekön
Ş. Balman
Affiliation:
Middle East Technical University, Dept. of Physics, Inönü Bulvarı, Ankara, Turkey, 06531 email: solen@astroa.physics.metu.edu.tr, yakup@astroa.physics.metu.edu.tr
Y. Pekön
Affiliation:
Middle East Technical University, Dept. of Physics, Inönü Bulvarı, Ankara, Turkey, 06531 email: solen@astroa.physics.metu.edu.tr, yakup@astroa.physics.metu.edu.tr
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Abstract

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We reanalyze a selection of the XMM-Newton RGS (Reflection Grating Spectrometer) data of two classical novae; V4743 Sgr and V2491 Cyg. The high resolution nova spectra in the X-ray wavelengths show existence of absorption features (e.g., blue shifted). Our main aim is to model the absorption components detected in the high resolution spectra independently from the assumed continuum model. We assume that there is complex absorption of interstellar, photospheric, and of collisionally and/or photoionized gas origin in the moving material along the line of sight from a nova wind or ejecta. In addition to deriving the absorption properties, we obtain CNO abundances of elements in the ejecta/nova wind.

Keywords

stars: novaecataclysmic variableswindsoutflowsabundances — X-rays: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Issue S281: Binary Paths to Type Ia Supernovae Explosions , July 2011 , pp. 124 - 125
Copyright
Copyright © International Astronomical Union 2013

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