Time Variability of Nonthermal X-ray Stripes in Tycho's Supernova Remnant with Chandra

15 Apr 2020 Okuno Tomoyuki Tanaka Takaaki Uchida Hiroyuki Aharonian Felix A. Uchiyama Yasunobu Tsuru Takeshi Go Matsuda Masamune

Analyzing Chandra data of Tycho's supernova remnant (SNR) taken in 2000, 2003, 2007, 2009, and 2015, we search for time variable features of synchrotron X-rays in the southwestern part of the SNR, where stripe structures of hard X-ray emission were previous found. By comparing X-ray images obtained at each epoch, we discover a knot-like structure in the northernmost part of the stripe region became brighter particularly in 2015... (read more)

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