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Spatial distribution of metal emissions in supernova remnant 3C 397 viewed with Chandra and XMM

Chen, Yang; Jiang, Bing

We present X-ray equivalent width imaging of 3C 397 for Mg Heα, Si Heα, S Heα, and Fe Kα complex lines with Chandra and XMM-Newton observations. The images revealed that the heavier the element is, the smaller the extent of the element distribution is. The Mg emission is evidently enhanced in the southeastern blow-out region, well along the radio …

Discovery of a high confidence soft lag from an X-ray flare of Markarian 421

Zhang, Peng; Shao, Li; Zhang, YouHong +1 more

We present the X-ray variability properties of the X-ray and TeV bright blazar Mrk 421 with a ∼60 ks long XMM-Newton observation performed on November 9–10, 2005. The source experienced a pronounced flare, of which the inter-band time lags were determined with a very high confidence level. The soft (0.6–0.8 keV) X-ray variations lagged the hard (4…

Deprojection technique for galaxy cluster considering the point spread function

Chen, Yong; Wang, YuSa; Jia, ShuMei

We present a new method for the analysis of Abell 1835 observed by XMM-Newton. The method is a combination of the Direct Demodulation technique and deprojection. We eliminate the effects of the point spread function (PSF) with the Direct Demodulation technique. We then use a traditional deprojection technique to study the properties of Abell 1835.…