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相关论文: Large-field CO (J=1-0) observations toward SNR G15…

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Many supernova remnants (SNRs) are considered to evolve in molecular environments, but the associations between SNRs and molecular clouds (MCs) are often unclear. Being aware of such ambiguous case, we report our study on the molecular…

高能天体物理现象 · 物理学 2020-07-15 Xin Zhou , Yang Su , Ji Yang , Yang Chen , Ye Xu , Xuepeng Chen , Shaobo Zhang

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…

太阳与恒星天体物理 · 物理学 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…

星系天体物理 · 物理学 2015-06-05 Il-Gyo Jeong , Do-Young Byun , Bon-Chul Koo , Jea-Joon Lee , Jung-Won Lee , Hyunwoo Kang

We present the results of CO emission line observations toward the semicircular Galactic supernova remnant (SNR) 3C434.1 (G94.0+1.0). We mapped an area covering the whole SNR in the 12CO J=1-0 emission line using the Seoul Radio Astronomy…

高能天体物理现象 · 物理学 2015-06-15 Il-Gyo Jeong , Bon-Chul Koo , Wan-Kee Cho , Carsten Kramer , Jürgen Stutzki , Do-Young Byun

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…

星系天体物理 · 物理学 2017-03-08 Yang Su , Xin Zhou , Ji Yang , Xuepeng Chen , Yang Chen , Yi Liu , Hongchi Wang , Chong Li , Shaobo Zhang

We universally search for evidence of kinematic and spatial correlation of supernova remnant (SNR) and molecular cloud (MC) associations for nearly all SNRs in the coverage of the MWISP CO survey, i.e. 149 SNRs, 170 SNR candidates, and 18…

We report new CO observations and a detailed molecular-line study of the mixed morphology (MM) supernova remnant (SNR) G359.1-0.5, which contains six OH (1720 MHz) masers along the radio shell, indicative of shock-cloud interaction.…

星系天体物理 · 物理学 2020-02-26 L. K. Eppens , E. M. Reynoso , J. Lazendic-Galloway , J. A. Combi , J. F. Albacete Colombo , -

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…

星系天体物理 · 物理学 2022-02-23 Qian-Cheng Liu , Ping Zhou , Yang Chen

New HI images from the VLA Galactic Plane Survey (VGPS) show clear absorption features associated with the supernova remnant (SNR) G18.8+0.3. High-resolution $^{13}$CO images reveal that molecular clouds overlap the radio filaments of…

天体物理学 · 物理学 2009-11-13 W. W. Tian , D. A. Leahy , Q. D. Wang

Most old supernova remnants (SNRs) in the Milky Way have not yet been identified. Considering their large potential number and the sufficient momentum-energy transfer to the interstellar medium (ISM), they are a key part of our…

星系天体物理 · 物理学 2024-03-07 Xin Zhou , Yang Su , Ji Yang , Yang Chen , Zhibo Jiang

The environment of supernova remnants (SNRs) is a key factor in their evolution, particularly at later stages of their existence. It is often assumed that mixed-morphology (MM) SNRs evolve in very dense environments, and that their…

高能天体物理现象 · 物理学 2019-07-03 Maria Arias , Vladimir Domcek , Ping Zhou , Jacco Vink

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…

星系天体物理 · 物理学 2021-02-02 Yoshiaki Sofue

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 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

Supernova remnant (SNR) Kes 69 is morphologically characterized by brightened radio, infrared, and X-ray emission on the southeastern rim, with the 1720 MHz OH masers detected in the northeastern and southeastern regions at various local…

天体物理学 · 物理学 2011-02-11 Xin Zhou , Yang Chen , Yang Su , Ji Yang

We have carried out 12CO, 13CO, and C18O observations toward the mixed morphology supernova remnant (SNR) IC 443. The observations cover a 1.5*1.5 deg^2 area and allow us to investigate the overall molecular environment of the remnant. Some…

太阳与恒星天体物理 · 物理学 2014-05-29 Yang Su , Min Fang , Ji Yang , Ping Zhou , Yang Chen

We have performed a multi-wavelength study of supernova remnant (SNR) G57.2+0.8 and its environment. The SNR hosts the magnetar SGR 1935+2154, which emitted an extremely bright ms-duration radio burst on 2020 Apr 28 (The Chime/Frb…

高能天体物理现象 · 物理学 2020-12-23 Ping Zhou , Xin Zhou , Yang Chen , Jie-Shuang Wang , Jacco Vink , Yuan Wang

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…

高能天体物理现象 · 物理学 2023-07-24 Qian-Qian Zhang , Ping Zhou , Yang Chen , Xiao Zhang , Wen-Juan Zhong , Xin Zhou , Zhi-Yu Zhang , Jacco Vink

The supernova remnant (SNR) G150.3+4.5 was recently discovered in the radio band; it exhibits a shell-like morphology with an angular size of $\sim 3^{\circ}$, suggesting either an old or a nearby SNR. Extended $\gamma$-ray emission…

N103B is a Type Ia supernova remnant (SNR) in the Large Magellanic Cloud (LMC). We carried out new $^{12}$CO($J$ = 3-2) and $^{12}$CO($J$ = 1-0) observations using ASTE and ALMA. We have confirmed the existence of a giant molecular cloud…

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