An Apparent Hard X-Ray Decline of CH Cygni
[摘要] CHCygniisasymbioticstarconsistingofanMgiantandanaccretingwhitedwarf,whichisknowntobeahighlyvariableX-raysourcewithacomplex,two-component,spectra.Here,wereportontwoSuzakuobservationsofCHCyg,takenin2006JanuaryandMay,duringwhichthesystemwasseentobeinasoftX-raybright,hardX-rayfaintstate.Basedontheextraordinarystrengthofthe6.4 keVfluorescentFe$$mathrm{K}alpha$$line,weshowthatthehardX-raysobservedwithSuzakuaredominatedbyscattering.
[发布日期] [发布机构]
[效力级别] [学科分类] 天文学(综合)
[关键词] "accretion;accretion disk";"binaries: symbiotic";"stars: individual (CH Cyg)";"X-rays: stars" [时效性]
