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相关论文: Distances to Two Galactic Supernova Remnants: G32.…

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Accurate distances to supernova remnants (SNRs) are crucial in determining their size, age, luminosity and evolutionary state. To determine distances, we chose three SNRs from the VLA Galactic Plane Survey (VGPS) for extraction of HI…

星系天体物理 · 物理学 2018-05-28 S. Ranasinghe , D. A. Leahy

We take advantage of the red clump stars to build the relation of the optical extinction (AV) and distance in each direction of supernova remnants (SNRs) with known extinction in the fourth Galactic quadrant. The distances of 9 SNRs are…

星系天体物理 · 物理学 2019-07-24 Su-Su Shan , Hui Zhu , Wen-Wu Tian , Hai-Yan Zhang , Ai-Yuan Yang , Meng-Fei Zhang

We have carried out high-resolution near-infrared spectroscopic observations toward 16 Galactic supernova remnants (SNRs) showing strong H$_{2}$ emission features. A dozen bright H$_{2}$ emission lines are clearly detected for individual…

星系天体物理 · 物理学 2020-11-25 Yong-Hyun Lee , Bon-Chul Koo , Jae-Joon Lee

We present a table of 215 SNRs with distances. New distances are found to SNR G$51.26+0.11$ of $6.6 \pm 1.7$ kpc using HI absorption spectra, and to 5 other SNRs using maser/molecular cloud associations. We recalculate the distances and…

高能天体物理现象 · 物理学 2022-11-30 S. Ranasinghe , D. Leahy

We carry out a project to independently measure the distances of supernova remnants (SNRs) in the first quadrant of the Galaxy. In this project, red clump (RC) stars are used as standard candles and extinction probes to build the optical…

天体物理仪器与方法 · 物理学 2018-11-07 S. S. Shan , H. Zhu , W. W. Tian , M. F. Zhang , H. Y. Zhang , D. Wu , A. Y. Yang

Accurate distance measurements to supernova remnants (SNRs) are crucial for understanding their physical properties and evolution. We present a novel method that combines CO line observations with three-dimensional (3D) extinction maps to…

星系天体物理 · 物理学 2026-03-24 Zhe Zhang , Jun Li , Biwei Jiang , He Zhao , Fupeng Liu

We analyze the HI absorption profile for TeV Supernova Remnant (SNR) G349.7+0.2 based on updated knowledge of the inner Galaxy's structure. We significantly revise its kinematic distance from the previous ~ 22 kpc to ~11.5 kpc, indicating…

星系天体物理 · 物理学 2015-06-18 W. W. Tian , D. A Leahy

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

Two possible planetary nebulae (PN G035.5-00.4 and IRAS 18551+0159), one newly re-identified supernova remnant (SNR G35.6-0.4), and one HII region (G35.6-0.5) form a line-of-sight-overlapped complex known as G35.6-0.5. We analyze 21 cm HI…

太阳与恒星天体物理 · 物理学 2015-06-16 H. Zhu , W. W. Tian , D. F. Torres , G. Pedaletti , H. Q. Su

We present compelling evidence for confirmation of a Galactic supernova remnant (SNR) candidate, G332.5-5.6, based initially on identification of new, filamentary, optical emission line nebulosity seen in the arcsecond resolution images…

天体物理学 · 物理学 2009-11-13 M. Stupar , Q. A. Parker , M. D. Filipovic , D. J. Frew , I. Bojicic , B. Aschenbach

G284.3$-$1.8 is a supernova remnant with a radio shell and thermal X-ray emission. Located near its center is the gamma-ray binary 1FGL J1018.6$-$5856, although the physical association between the two systems is not clear yet. Our X-ray…

We build HI absorption spectra towards Supernova Remnant (SNRs) G16.7+0.1 and G15.9+0.2 using the THOR survey data. With the absorption spectra, we give a new distance range of 7 to 16 kpc for G15.9+0.2. We also resolve the near/far-side…

星系天体物理 · 物理学 2019-09-25 W. W. Tian , H. Zhu , M. F. Zhang , H. K. Chang , S. S. Shan , D. A. Leahy

Multi-frequency analysis has revealed the presence of a new supernova remnant, G55.0+0.3, in the Galactic plane. A kinematic distance of 14 kpc has been measured from HI spectral line data. The faint, clumpy half-shell is non-thermal and…

天体物理学 · 物理学 2009-10-30 B. C. Matthews , B. J. Wallace , A. R. Taylor

Spatial template is important to study the nearby supernova remnant (SNR). For SNR G332.5-5.6, we report a gaussian disk with radius of about 1.06 degrees to be a potential good spatial model in the gamma-ray band. Employing this new…

高能天体物理现象 · 物理学 2024-03-12 Ming-Hong Luo , Qing-Wen Tang , Xiu-Rong Mo

We present radio observations of the source G332.5-5.6, a candidate supernova remnant (SNR). Observations have been performed with the Australia Telescope Compact Array (ATCA) at two frequencies, at 1.4 and 2.4 GHz. Our results confirm that…

天体物理学 · 物理学 2008-11-26 E. M. Reynoso , A. J. Green

We have observed two fields - Field-I (l=3.2 degrees, b=-1.0 degree) and Field-II (l=356.8 degrees, b=-0.1 degree) with the Giant Metrewave Radio Telescope (GMRT) at 330 MHz. In the first field, we have studied the candidate supernova…

天体物理学 · 物理学 2009-11-07 Subhashis Roy , A. Pramesh Rao

Distances are found for four supernova remnants without previous distance measurements. H I spectra and H I channel maps are used to determine the maximum velocity of H I absorption for the four supernova remnants (SNRs). We examined…

星系天体物理 · 物理学 2018-08-28 S. Ranasinghe , D. A. Leahy , Wenwu Tian

We briefly summarize the survey of HI 21 cm emission lines to search for shocked atomic gas associated with Galactic supernova remnants (SNRs) in the southern sky. For G347.3-0.5, we discuss the distance to the SNR and the implications of…

天体物理学 · 物理学 2007-05-23 Bon-Chul Koo , Ji-hyun Kang , Naomi McClure-Griffiths

We present radio-continuum observations of the Galactic supernova remnant (SNR) candidate, G308.3-1.4, made with the Australia Telescope Compact Array, Molonglo Observatory Synthesis Telescope and the Parkes radio telescope. Our results…

A combination of archival multi-frequency radio observations with narrow-band HAlpha optical imagery and new confirmatory optical spectroscopy have shown that candidate supernova remnant G6.31+0.54 can now be confirmed as part of a Galactic…

星系天体物理 · 物理学 2018-07-11 M. Stupar , Q. A. Parker , D. J. Frew
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