The X-ray eclipse of OY Car resolved with XMM-Newton
Minimum credit line: Image courtesy of P.J. Wheatle, Leicester University and ESA. (for details, see Conditions of Use).
Credit: ESA/XMM-Newton, CC BY-SA 3.0 IGO
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| About this Image |
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Light curve of the white dwarf OY Car during its X-ray eclipse. These XMM-Newton observations show for the first time resolved X-ray ingress and egress of an eclipse in a dwarf nova. Top panel are optical (B filter) and bottom panel X-ray data.
Investigator(s): P.J. Wheatley and R.G. West
| For More Information |
|---|
- Read the Journal article
- Detailed description of this image
- Query XSA archive for XMM-Newton data in the field of OY Car
- Astronomical database entries for OY Car;
- Query NED for more images about OY Car
- Query SIMBAD for more OY Car data
- For unfamiliar terms, visit the XMM-Newton Astronomical Glossary
| Instrument | EPIC | ||
| Observing Mode | Full Frame | ||
| Filter | Medium | ||
| Date of Observation | 2000-08-07 | ||
| Image size | 26.00 x 26.00 arcmin | ||
| Detailed Caption | The figure shows the first time resolved X-ray ingress and egress of an eclipse in a dwarf nova, from XMM-Newton observations of OY Car in August 2000. The top panel shows a fold of 3 OM eclipse observations with the B filter. The bottom panel shows a fold of 3 eclipse observations with the EPIC-mos X-ray cameras and 2 eclipse observations with the EPIC-pn camera. The solid curve plotted over the X-ray data represents our best fit to the June 2000 data. The solid vertical lines on the OM panel represent our measured X-ray contact points, and the dotted lines represent the separation of the first and fourth contact points of the white dwarf as derived from ground-based optical observations. Both data sets are binned into 1000 orbital phase bins, corresponding to 5.5 s per bin. The eclipse width is smaller in the X-ray band, implying that the X-ray emitting region must be vertically displaced with re- spect to the centre of the white dwarf. | ||
| Alternate Resolutions | (Help) |
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