SIMBAD references

2007PASJ...59S.177M - Publ. Astron. Soc. Jap., 59, 177-183 (2007/January-0)

An apparent hard X-ray decline of CH Cygni.

MUKAI K., ISHIDA M., KILBOURNE C., MORI H., TERADA Y., CHAN K.-W. and SOONG Y.

Abstract (from CDS):

CH Cygni is a symbiotic star consisting of an M giant and an accreting white dwarf, which is known to be a highly variable X-ray source with a complex, two-component, spectra. Here, we report on two Suzaku observations of CH Cyg, taken in 2006 January and May, during which the system was seen to be in a soft X-ray bright, hard X-ray faint state. Based on the extraordinary strength of the 6.4keV fluorescent Fe Kα line, we show that the hard X-rays observed with Suzaku are dominated by scattering.

Abstract Copyright:

Journal keyword(s): accretion, accretion disk - stars: binaries: symbiotic - stars: individual (CH Cyg) - X-rays: stars

Simbad objects: 5

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