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We review recent progress in elucidating the relationship between high-energy radiation and the interstellar medium (ISM) in young supernova remnants (SNRs) with ages of $\sim$2000 yr, focusing in particular on RX J1713.7$-$3946 and RCW 86.…

高能天体物理现象 · 物理学 2021-06-29 Hidetoshi Sano , Yasuo Fukui

We study cosmic-ray acceleration in a supernova remnant (SNR) and the escape from it. We model nonthermal particle and photon spectra for the hidden SNR in the open cluster Westerlund 2, and the old-age mixed-morphology SNR W 28. We assume…

高能天体物理现象 · 物理学 2014-11-20 Yutaka Fujita , Yutaka Ohira , Shuta J. Tanaka , Fumio Takahara

We have analyzed the atomic and molecular gas using the 21 cm HI and 2.6/1.3 mm CO emissions toward the young supernova remnant (SNR) RCW 86 in order to identify the interstellar medium with which the shock waves of the SNR interact. We…

We have identified nine new SNR candidates in M74 with [S II]/H$\alpha$ $\geq$ 0.4 as the basic criterion. We obtain [S II]/H$\alpha$ ratio in the range from 0.40 to 0.91 and H$\alpha$ intensities from 2.8 $\times$ $10^{-15}$ erg cm$^{-2}$…

星系天体物理 · 物理学 2015-05-18 E. Sonbas , A. Akyuz , S. Balman , M. E. Ozel

We present high-resolution X-ray observations of the small-diameter supernova remnant (SNR) G349.7+0.2 with the Chandra X-ray Observatory. The overall SNR spectrum can be described by two spectral components. The soft component is in…

天体物理学 · 物理学 2009-11-10 J. S. Lazendic , P. O. Slane , J. P. Hughes , Y. Chen , T. M. Dame

We have carried out CO J=2-1 and CO J=3-2 observations toward Tycho's supernova remnant (SNR) using the KOSMA 3m-Telescope. From these observations we identified three molecular clouds (MCs) around the SNR. The small cloud in the southwest…

太阳与恒星天体物理 · 物理学 2015-05-20 Jin-Long Xu , Jun-Jie Wang , Martin Miller

The Galactic supernova remnant (SNR) IC443 is one of the most studied core-collapse SNRs for its interaction with molecular clouds. However, the ambient molecular clouds with which IC443 is interacting have not been thoroughly studied and…

星系天体物理 · 物理学 2015-06-04 Jae-Joon Lee , Bon-Chul Koo , Ronald L. Snell , Min S. Yun , Mark H. Heyer , Michael G. Burton

We present high-resolution near-infrared spectroscopic observations of the newly identified supernova remnant (SNR) candidate G25.8+0.2 obtained with the Immersion Grating Infrared Spectrograph (IGRINS) on the Harlan J. Smith Telescope. The…

星系天体物理 · 物理学 2026-01-07 Kim Yesol , Koo Bon-Chul , Lee Jae-Joon

We investigate the environment of the infrared dust bubble S51 and search for evidence of triggered star formation in its surroundings. We performed a multiwavelength study of the region around S51 with data taken from large-scale surveys:…

星系天体物理 · 物理学 2012-07-03 Chuan Peng Zhang , Jun Jie Wang

We report the detection of gamma-ray emission coincident with four supernova remnants (SNRs) using data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. G349.7+0.2, CTB 37A, 3C 391 and G8.7-0.1 are supernova…

高能天体物理现象 · 物理学 2015-05-18 Daniel Castro , Patrick Slane

We have investigated the molecular environment of the semicircular composite supernova remnant (SNR) 3C396 and performed a Chandra spatially resolved thermal X-ray spectroscopic study of this young SNR. With our CO millimeter observations,…

星系天体物理 · 物理学 2015-05-20 Yang Su , Yang Chen , Ji Yang , Bon-Chul Koo , Xin Zhou , Deng-Rong Lu , Il-Gyo Jeong , Tracey DeLaney

We present ASCA observations of supernova remnant (SNR) G349.7+0.2. The remnant has an irregular shell morphology and is interacting with a molecular cloud, evident from the presence of OH(1720 MHz) masers and shocked molecular gas. The…

天体物理学 · 物理学 2009-11-07 P. Slane , Y. Chen , J. S. Lazendic , J. P. Hughes

We present dust features and masses observed in young supernova remnants (SNRs) with Spitzer IRS mapping and staring observations of four youngest supernova remnants: SNR 1E102.2-7219 (E0102) in the SMC, Cas A and G11.2-0.3 in our Galaxy,…

太阳与恒星天体物理 · 物理学 2009-01-23 J. Rho , W. T. Reach , A. Tappe , L. Rudnick , T. Kozasa , U. Hwang , M. Andersen , H. Gomez , T. DeLaney , L. Dunne , J. Slavin

The environs of three supernova remnants (SNR) with associated OH 1720 MHz masers, G349.7+0.2, CTB 37A and G16.7+0.1, have been surveyed in the CO J=1-0 transition with the 12 Meter Telescope of the NRAO, using the On-The-Fly technique.…

天体物理学 · 物理学 2009-10-31 Estela M. Reynoso , Jeffrey G. Mangum

The supernova remnant (SNR) G25.1-2.3 was identified in the radio band during the Sino-German $\lambda$6 cm survey of the Galactic plane. We present a detailed investigation of the optical, HI, and CO emission towards the G25.1-2.3 to…

高能天体物理现象 · 物理学 2026-04-06 Ebru Aktekin , Hicran Bakış , Volkan Bakış , Yuya Asano , Hidetoshi Sano , Yasuo Fukui , Aytap Sezer

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…

星系天体物理 · 物理学 2015-06-19 Antoine Gusdorf , Rolf Guesten , Sibylle Anderl , Talayeh Hezareh

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…

星系天体物理 · 物理学 2024-06-26 Jian-Cheng Feng , Xuepeng Chen , Yang Su , Li Sun , Shiyu Zhang , Xin Zhou , Weihua Guo

Supernovae and their remnants provide energetic feedback to the ambient interstellar medium (ISM), which is often distributed in multiple gas phases. Among them, warm molecular hydrogen (H$_2$) often dominates the cooling of the shocked…

星系天体物理 · 物理学 2022-11-29 Yunwei Deng , Zhi-Yu Zhang , Ping Zhou , Junzhi Wang , Min Fang , Lingrui Lin , Fuyan Bian , Zhiwei Chen , Yong Shi , Guoyin Chen , Hui Li

There is a considerable deficiency in the number of known supernova remnants (SNRs) in the Galaxy compared to that expected. Searches for extended low-surface brightness radio sources may find new Galactic SNRs, but confusion with the much…

Supernovae remnants (SNRs) represent a major feedback source from stars on the interstellar medium of galaxies. During the latest stage of supernovae explosions, shock waves produced by the initial blast modify the chemistry of gas and…