X-ray observations of selected cataclysmic variable stars using the Einstein Observatory

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

92

Binary Stars, Dwarf Stars, Novae, Stellar Radiation, Variable Stars, X Ray Sources, Emission Spectra, Heao 2, Spaceborne Astronomy, Stellar Magnetic Fields, Stellar Mass Accretion, Stellar Spectra

Scientific paper

X-ray observations of 12 cataclysmic variable stars using the Einstein Observatory are reported. Nine of these stars, representing all subclasses of cataclysmic variables, were detected. Their fluxes range from 2 x 10 to the -13th to 1 x 10 to the -11th ergs/sq cm-s in the energy interval 0.16-4.5 keV. The spectra of all the sources detected are relatively hard (kT not less than 5 keV). There is no evidence for an ultrasoft emission component (kT of about 50 eV) such as has been observed from the dwarf novae SS Cyg and U Gem during optical outburst. The X-ray and optical fluxes of the objects observed can be understood in terms of differences in mass accretion rate if the accreting stars in these close binary systems possess a weak magnetic field.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

X-ray observations of selected cataclysmic variable stars using the Einstein Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with X-ray observations of selected cataclysmic variable stars using the Einstein Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray observations of selected cataclysmic variable stars using the Einstein Observatory will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-781735

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.