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We report on the Suzaku results of the mixed-morphology supernova remnant (SNR) G290.1$-$0.8 (MSH 11-61A). The SNR has an asymmetric structure extended to the southeast and the northwest. In the X-ray spectra of the center and the northwest…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Fumiyoshi Kamitsukasa , Katsuji Koyama , Hiroyuki Uchida , Hiroshi Nakajima , Kiyoshi Hayashida , Koji Mori , Satoru Katsuda , Hiroshi Tsunemi

We observed the Galactic mixed-morphology supernova remnant G166.0+4.3 with Suzaku. The X-ray spectrum in the western part of the remnant is well represented by a one-component ionizing plasma model. The spectrum in the northeastern region…

High Energy Astrophysical Phenomena · Physics 2017-01-17 Hideaki Matsumura , Hiroyuki Uchida , Takaaki Tanaka , Takeshi Go Tsuru , Masayoshi Nobukawa , Kumiko Kawabata Nobukawa , Makoto Itou

We present the results of an X-ray spectral analysis of the northeast region of the candidate supernova remnant G189.6+3.3 with Suzaku. K-shell lines from highly ionized Ne, Mg, Si, and S were detected in the spectrum for the first time. In…

High Energy Astrophysical Phenomena · Physics 2020-08-05 Shigeo Yamauchi , Moe Oya , Kumiko K. Nobukawa , Thomas G. Pannuti

We present the Suzaku results of a supernova remnant (SNR), G359.1-0.5 in the direction of the Galactic center region. From the SNR, we find prominent K-shell lines of highly ionized Si and S ions, together with unusual structures at…

High Energy Astrophysical Phenomena · Physics 2016-06-22 Takao Ohnishi , Katsuji Koyama , Takeshi Go Tsuru , Kuniaki Masai , Hiroya Yamaguchi , Midori Ozawa

We present the Suzaku results of the mixed-morphology supernova remnant W28. The X-ray spectra of the central region of W28 exhibit many bright emission lines from highly ionized atoms. An optically thin thermal plasma in collisional…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Makoto Sawada , Katsuji Koyama

We present an X-ray analysis on the Galactic supernova remnant (SNR) G298.6-0.0 with Suzaku. The X-ray image shows a center-filled structure inside the radio shell, implying this SNR is categorized as a mixed-morphology (MM) SNR. The…

High Energy Astrophysical Phenomena · Physics 2015-10-21 Aya Bamba , Makoto Sawada , Yuto Nakano , Yukikatsu Terada , John Hewitt , Robert Petre , Lorella Angelini

We report new features of the typical mixed-morphology (MM) supernova remnant (SNR) W44. In the X-ray spectra obtained with Suzaku, radiative recombination continua (RRCs) of highly ionized atoms are detected for the first time. The spectra…

We report on Suzaku results of the two distinct regions in the Galactic supernova remnant G348.5+0.1: extended thermal X-rays ("soft diffuse") at the northeast region and non-thermal X-rays (CXOU J171419.8-383023) at the northwest region.…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Shigeo Yamauchi , Sari Minami , Naomi Ota , Katsuji Koyama

G349.7$+$0.2 is a supernova remnant (SNR) expanding in a dense medium of molecular clouds and interacting with clumps of molecular material emitting gamma rays. We analyzed the gamma-ray data of Large Area Telescope on board Fermi Gamma Ray…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Tülün Ergin , Aytap Sezer , Lab Saha , Pratik Majumdar , Fatma Gök , E. Nihal Ercan

We report on CO and HI studies of the mixed-morphology supernova remnant (SNR) G346.6$-$0.2. We find a wind-blown bubble along the radio continuum shell with an expansion velocity of $\sim10$ km s$^{-1}$, which was likely formed by strong…

High Energy Astrophysical Phenomena · Physics 2021-12-15 H. Sano , H. Suzuki , K. K. Nobukawa , M. D. Filipović , Y. Fukui , T. J. Moriya

We report here on the first detection at X-ray wavelengths of the Supernova Remnant (SNR) G337.8-0.1, carried out with the XMM-Newton Observatory. Using the X-ray observations, we studied the X-ray morphology of the remnant at different…

Astrophysics · Physics 2009-11-13 J. A. Combi , J. F. Albacete-Colombo , J. Marti

We present an investigation of the supernova remnant (SNR) G306.3$-$0.9 using archival multi-wavelength data. The Suzaku spectra are well described by two-component thermal plasma models: The soft component is in ionization equilibrium and…

High Energy Astrophysical Phenomena · Physics 2017-01-18 Aytap Sezer , Tulun Ergin , Ryo Yamazaki

We present the Suzaku spectroscopic study of the Galactic middle-aged supernova remnant (SNR) IC 443. The X-ray spectrum in the 1.75-6.0 keV band is described by an optically-thin thermal plasma with the electron temperature of 0.6 keV and…

High Energy Astrophysical Phenomena · Physics 2014-11-20 Hiroya Yamaguchi , Midori Ozawa , Katsuji Koyama , Kuniaki Masai , Junko S. Hiraga , Masanobu Ozaki , Daisuke Yonetoku

We report on the results of our detailed analyses on the peculiar recombining plasma of the supernova remnant (SNR) G359.1$-$0.5, and the interacting CO clouds. Combining {\it Chandra} and {\it Suzaku} data, we estimated the ionization…

High Energy Astrophysical Phenomena · Physics 2020-05-06 Hiromasa Suzuki , Aya Bamba , Rei Enokiya , Hiroya Yamaguchi , Paul P. Plucinsky , Hirokazu Odaka

We present an X-ray study of the mixed-morphology supernova remnant CTB 1 (G116.9+0.2) observed with Suzaku. The 0.6-2.0 keV spectra in the northeast breakout region of CTB 1 are well represented by a collisional ionization-equilibrium…

We present the results from the Suzaku X-ray Imaging Spectrometer observation of the mixed-morphology supernova remnant (SNR) HB9 (G160.9+2.6). We discovered recombining plasma (RP) in the western Suzaku observation region and the spectra…

High Energy Astrophysical Phenomena · Physics 2019-09-25 Aytap Sezer , Tulun Ergin , Ryo Yamazaki , Hidetoshi Sano , Yasuo Fukui

We present an X-ray imaging and spectroscopic study of the molecular cloud interacting mixed-morphology (MM) supernova remnant (SNR) G346.6-0.2 using XMM-Newton. The X-ray spectrum of the remnant is well described by a recombining plasma…

High Energy Astrophysical Phenomena · Physics 2017-10-11 Katie Auchettl , C-Y. Ng , B. T. T. Wong , Laura Lopez , Patrick Slane

We report the discovery of recombining plasmas in three supernova remnants (SNRs) with the Suzaku X-ray astronomy satellite. During SNR's evolution, the expanding supernova ejecta and the ambient matter are compressed and heated by the…

High Energy Astrophysical Phenomena · Physics 2012-02-09 Hiroya Yamaguchi , Midori Ozawa , Takao Ohnishi

3C 400.2 belongs to the mixed morphology supernova remnant class, showing center-filled X-ray and shell-like radio morphology. We present a study of 3C 400.2 with archival Suzaku and Fermi-LAT observations. We find recombining plasma (RP)…

High Energy Astrophysical Phenomena · Physics 2017-06-12 T. Ergin , A. Sezer , H. Sano , R. Yamazaki , Y. Fukui

We present the first dedicated X-ray study of the supernova remnant (SNR) G32.8-0.1 (Kes 78) with Suzaku. X-ray emission from the whole SNR shell has been detected for the first time. The X-ray morphology is well correlated with the…

High Energy Astrophysical Phenomena · Physics 2016-02-17 Aya Bamba , Yukikatsu Terada , John Hewitt , Robert Petre , Lorella Angelini , Samar Safi-Harb , Ping Zhou , Fabrizio Bocchino , Makoto Sawada
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