XMM-Newton Observations of Three Interesting Cataclysmic Variables

Details XMM-Newton Observations of Three Interesting Cataclysmic Variables XMM-Newton Observations of Three Interesting Cataclysmic Variables

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.0919h&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #09.19; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We have used the high sensitivity and large energy coverage of XMM_Newton to study 3 interesting cataclysmic variables: the pulsating accreting white dwarf in GW Lib and two confirmed polars from SDSS. Our analysis includes X-ray and optical light curves to determine periodicities and geometry of the X-ray emitting areas and X-ray spectra to obtain temperatures, column density and X-ray luminosity. The X-ray flux observed from GW Lib does not show the non-radial pulsations that are evident in the optical at 648, 376 and 236s, implying that the pulsation is not propagated into the boundary layer in accreting white dwarfs. A 21 min, high amplitude, periodic X-ray modulation is observed in SDSSJ2333+15, confirming this system as an intermediate polar with a 21 min spin period for the white dwarf. An upper limit to the X-ray luminosity of the extremely low accretion rate polar SDSSJ0837+38 confirms the lack of a hard X-ray shock and associates the accretion with the bombardment regime in this system.
This research was supported by XMM-Newton grants NNG05GR47G, NNG05GL29G and NNX06AE80G to the University of Washington and NSF grant AST 03-06080 to G. Schmidt.

Affiliated with

Also associated with

No associations

Rating

XMM-Newton Observations of Three Interesting Cataclysmic Variables 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 XMM-Newton Observations of Three Interesting Cataclysmic Variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and XMM-Newton Observations of Three Interesting Cataclysmic Variables will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1154909