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We present a joint analysis of optical emission-line and X-ray observations of the archetypical Galactic mixed-morphology supernova remnant (MMSNR) W28 (G6.4-0.1). MMSNRs comprise a class of sources whose shell-like radio morphology…

Supernovae constitute a critical source of energy input to the interstellar medium (ISM). In this short review, we focus on their latest phase of evolution, the supernova remnants (SNRs). We present observations of three old SNRs that have…

Astrophysics of Galaxies · Physics 2015-06-19 Antoine Gusdorf , Rolf Guesten , Sibylle Anderl , Talayeh Hezareh

We provide mid-infrared (MIR) imaging, photometry and profiles for the Galactic supernova remnants (SNRs) G001.0-00.1, G355.9-02.5, G355.6-00.0, and W28 based upon data deriving for the Galactic Legacy Infrared Midplane Survey…

Astrophysics of Galaxies · Physics 2010-06-23 R. A. Marquez-Lugo , J. P. Phillips

We present Spitzer MIPS SED and IRS observations of 14 Galactic Supernova Remnants previously identified in the GLIMPSE survey. We find evidence for SNR/molecular cloud interaction through detection of [OI] emission, ionic lines, and…

Astrophysics of Galaxies · Physics 2015-05-30 M. Andersen , J. Rho , W. T. Reach , J. W. Hewitt , J. P. Bernard

We present VLA observations in the hydroxyl line OH(1720 MHz) towards the supernova remnant W28. These high resolution images show a more extensive distribution of 1720 MHz emission than had previously been suspected from earlier…

Astrophysics · Physics 2009-10-22 D. A. Frail , W. M. Goss , V. I. Slysh

We measure the molecular gas environment near recent ($< 100$ yr old) supernovae (SNe) using $\sim1''$ or $\leq 150$pc resolution CO (2-1) maps from the PHANGS-ALMA survey of nearby star-forming galaxies. This is arguably the first such…

Supernova remnants interacting with molecular clouds are ideal laboratories to study the acceleration of particles at shock waves and their transport and interactions in the surrounding interstellar medium. In this paper, we focus on the…

High Energy Astrophysical Phenomena · Physics 2020-03-04 V. H. M. Phan , S. Gabici , G. Morlino , R. Terrier , J. Vink , J. Krause , M. Menu

We present the detections of shocked molecular hydrogen (H2) gas in near- and mid-infrared and broad CO in millimeter from the mixed-morphology supernova remnant (SNR) HB~3 (G132.7+1.3) using Palomar WIRC, the Spitzer GLIMPSE360 and WISE…

Astrophysics of Galaxies · Physics 2021-08-25 J. Rho , T. H. Jarrett , L. N. Tram , W. Lim , W. T. Reach , J. Bieging , H. -G. Lee , B. -C. Koo , B. Whitney

Galactic supernova remnants (SNRs) play an important role in our understanding of supernovae and their feedback on the interstellar environment. SNR G352.7$-$0.1 is special for its thermal composite morphology and double-ring structure. We…

High Energy Astrophysical Phenomena · Physics 2023-07-24 Qian-Qian Zhang , Ping Zhou , Yang Chen , Xiao Zhang , Wen-Juan Zhong , Xin Zhou , Zhi-Yu Zhang , Jacco Vink

Supernova remnant (SNR) G106.3+2.7 was recently found to be one of the few potential Galactic hadronic PeVatrons. Aiming to test how solid the SNR is associated with the molecular clouds (MCs) that are thought to be responsible for hadronic…

Astrophysics of Galaxies · Physics 2022-02-23 Qian-Cheng Liu , Ping Zhou , Yang Chen

Context. Supernova remnants (SNRs) are the late stages of supernovae before their merging into the surrounding medium. Oxygen-rich supernova remnants represent a rare subtype with strong visible light oxygen emission. Aims. We present a new…

High Energy Astrophysical Phenomena · Physics 2025-08-27 Timo Kravtsov , Joseph P. Anderson , Hanindyo Kuncarayakti , Keiichi Maeda , Seppo Mattila

Fine structure of the density distribution in giant molecular clouds (GMC) around W43 (G31+00+90 km/s at $\sim 5.5$ kpc) was analyzed using the FUGIN$^*$ CO-line survey at high-angular ($20''\sim 0.5$ pc) and velocity (1.3 km/s) resolutions…

Astrophysics of Galaxies · Physics 2021-02-02 Yoshiaki Sofue

Aims. We aim to investigate the molecular environment of the supernova remnant (SNR) G150.3+4.5, and explore its association with ambient molecular clouds (MCs). Methods. We present large-field CO (J=1-0) molecular line observations toward…

Astrophysics of Galaxies · Physics 2024-06-26 Jian-Cheng Feng , Xuepeng Chen , Yang Su , Li Sun , Shiyu Zhang , Xin Zhou , Weihua Guo

We present CO observations toward three large supernova remnants (SNRs) in the third Galactic quadrant using the Purple Mountain Observatory Delingha 13.7m radio telescope. The observations are part of the high-resolution CO survey of the…

Astrophysics of Galaxies · Physics 2017-03-08 Yang Su , Xin Zhou , Ji Yang , Xuepeng Chen , Yang Chen , Yi Liu , Hongchi Wang , Chong Li , Shaobo Zhang

Radio surveys of supernova remnants (SNRs) in the Galaxy have uncovered 19 SNRs accompanied by OH maser emission at 1720 MHz. This unusual class of maser sources is suggested to be produced behind a shock front from the expansion of a…

Astrophysics · Physics 2009-11-07 F. Yusef-Zadeh , M. Wardle , J. Rho , M. Sakano

Supernova remnants (SNRs) can strongly affect the chemical composition of the interstellar dust. In this paper we investigate to what degree the dust and ices are modified by observing four stars expected to be absorbed by a giant molecular…

Astrophysics of Galaxies · Physics 2026-04-10 Tian-Yu Tu , Adwin Boogert , Yang Chen , Wenlang He

About 15%-60% of all supernova remnants are estimated to interact with dense molecular clouds. In these high density environments, radiative losses are significant. The cooling radiation can be observed in forbidden lines at optical…

High Energy Astrophysical Phenomena · Physics 2024-12-25 P. Smirnova , E. I. Makarenko , S. D. Clarke , E. Glukhov , S. Walch , I. Vaezzadeh , D. Seifried

We have carried out 12CO (J=1-0 and 2-1), 13CO (J=1-0), and C18O (J=1-0) observations in the direction of the supernova remnant (SNR) G22.7-0.2. A filamentary molecular gas structure, which is likely part of a larger molecular complex with…

Solar and Stellar Astrophysics · Physics 2015-06-23 Yang Su , Ji Yang , Xin Zhou , Ping Zhou , Yang Chen

We present the results of 12CO J = 1-0 line observations of eleven Galactic supernova remnants (SNRs) obtained using the Seoul Radio Astronomy Observatory (SRAO) 6-m radio telescope. The observation was made as a part of the SRAO CO survey…

Astrophysics of Galaxies · Physics 2015-06-05 Il-Gyo Jeong , Do-Young Byun , Bon-Chul Koo , Jea-Joon Lee , Jung-Won Lee , Hyunwoo Kang

Interstellar medium clouds in the W28 region are emitting gamma-rays and it is likely that the W28 supernova remnant is responsible, making W28 a prime candidate for the study of cosmic-ray acceleration and diffusion. Understanding the…

High Energy Astrophysical Phenomena · Physics 2017-08-09 Nigel Maxted , Gavin Rowell , Phoebe de Wilt , Michael Burton , Catherine Braiding , Andrew Walsh , Yasuo Fukui , Akiko Kawamura