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XRISM Observations of the Prototypical Cold Front in A3667

  • Authors: Yuki Omiya, Yuto Ichinohe, Kazuhiro Nakazawa, Hisamitsu Awaki, Dominique Eckert, Yutaka Fujita, Isamu Hatsukade, Maxim Markevitch, François Mernier, Ikuyuki Mitsuishi, Naomi Ota, Aurora Simionescu, Yuusuke Uchida, Shutaro Ueda, Irina Zhuravleva, John Zuhone

Yuki Omiya et al 2026 The Astrophysical Journal Letters 996 .

  • Provider: AAS Journals

Caption: Figure 2.

(Top left) Resolve spectra in the 2.0–10.0 keV energy band for the cold front (CF_IN, black) and central (Center, red) pointings. The best-fit models are overlaid on each spectrum together with NXB models. (Top right) Zoom-in of the Resolve spectra in the 6.2–6.7 keV energy band. Data are binned by 2 eV for display purposes. (Bottom) The spectra in regions a–g used for the SSM analysis in the 6.2–6.7 keV energy band. Each colored curve shows the modeled emission from the corresponding sky region: region a (red), b (orange), c (blue), d (green), e (magenta), f (cyan), and g (light gray). The spectrum of region a is also shown with the sum of all models (black) except for the region a model, highlighting the blueshifted contribution of region a relative to the others.

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