Springer Theses

Suzaku Studies of White Dwarf Stars and the Galactic X-ray Background Emission

Authors: Yuasa, Takayuki

  • Provides an X-ray spectral model that estimates white dwarf masses by fitting observed data from the Suzaku observatory
  • Reveals that the observed broadband spectra of the Galactic ridge X-ray emission can be explained by a sum of spectra of known types of X-ray stars
  • Nominated as an outstanding Ph.D thesis by the University of Tokyo's Physics Department in 2011
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  • ISBN 978-4-431-54219-3
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Hardcover $139.00
price for USA
valid through November 5, 2017
  • ISBN 978-4-431-54218-6
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Softcover $139.00
price for USA
valid through November 5, 2017
  • ISBN 978-4-431-54717-4
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  • Usually dispatched within 3 to 5 business days.
Rent the eBook  
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About this book

This thesis presents a study of the origin of an apparently extended X-ray emission associated with the Galactic ridge. The study was carried out with broadband spectra obtained from mapping observations in the Galactic bulge region conducted in 2005–2010 by the Suzaku space X-ray observatory. The spectra were analyzed with a newly constructed X-ray spectral model of an accreting white dwarf binary that is one of the proposed candidate stars for the origin of the Galactic ridge emission in the higher energy band. Fitting of the observed Galactic ridge spectra with the model showed that there is another spectral component that fills the gap between the observed X-ray flux and the component expected from the accreting white dwarf spectral model in the lower energy band. This additional soft spectral component was nicely explained by an X-ray spectral model of normal stars. The result, together with previously reported high-resolution imaging results, strongly supports the idea that the Galactic ridge X-ray emission is an assembly of dim, discrete X-ray point sources.

About the authors

Dr. Takayuki Yuasa
Department of Physics, Graduate School of Science
The University of Tokyo, Japan

Table of contents (7 chapters)

  • Introduction

    Yuasa, Takayuki

    Pages 1-5

  • Review of the Galactic X-ray Background Emission and White Dwarf Binaries

    Yuasa, Takayuki

    Pages 7-34

  • Constructing an X-ray Model of Accreting White Dwarf Binaries

    Yuasa, Takayuki

    Pages 35-45

  • Instrumentation

    Yuasa, Takayuki

    Pages 47-59

  • Estimating the Masses of White Dwarfs in Magnetic Cataclysmic Variables

    Yuasa, Takayuki

    Pages 61-88

Buy this book

eBook $109.00
price for USA (gross)
valid through November 5, 2017
  • ISBN 978-4-431-54219-3
  • Digitally watermarked, DRM-free
  • Included format: PDF, EPUB
  • ebooks can be used on all reading devices
  • Immediate eBook download after purchase
Hardcover $139.00
price for USA
valid through November 5, 2017
  • ISBN 978-4-431-54218-6
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
Softcover $139.00
price for USA
valid through November 5, 2017
  • ISBN 978-4-431-54717-4
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
Rent the eBook  
  • Rental duration: 1 or 6 month
  • low-cost access
  • online reader with highlighting and note-making option
  • can be used across all devices
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Bibliographic Information

Bibliographic Information
Book Title
Suzaku Studies of White Dwarf Stars and the Galactic X-ray Background Emission
Authors
Series Title
Springer Theses
Copyright
2013
Publisher
Springer Japan
Copyright Holder
Springer Japan
eBook ISBN
978-4-431-54219-3
DOI
10.1007/978-4-431-54219-3
Hardcover ISBN
978-4-431-54218-6
Softcover ISBN
978-4-431-54717-4
Series ISSN
2190-5053
Edition Number
1
Number of Pages
XV, 154
Topics