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We present the largest extragalactic survey of supernova remnant (SNR) candidates in nearby star-forming galaxies using exquisite spectroscopic maps from MUSE. Supernova remnants exhibit distinctive emission-line ratios and kinematic…

In this paper, we perform a cosmological model-independent test of the cosmic distance-duality relation (CDDR) in terms of the ratio of angular diameter distance (ADD) $D=D_{\rm A}^{\rm sl}/D_{\rm A}^{\,\rm s}$ from strong gravitational…

广义相对论与量子宇宙学 · 物理学 2017-07-26 Xiangyun Fu , Pengcheng Li

The physical sizes of supernova remnants (SNRs) in a number of nearby galaxies follow an approximately linear cumulative distribution, contrary to what is expected for decelerating shock fronts. This has been attributed to selection…

星系天体物理 · 物理学 2015-05-18 Carles Badenes , Dan Maoz , Bruce Draine

The direct measurements of cosmic rays (CRs), after correction for the propagation effects in the interstellar medium, indicate that their source spectra are likely to be significantly steeper than the canonical $E^{-2}$ spectrum predicted…

高能天体物理现象 · 物理学 2019-10-08 Mikhail Malkov , Felix Aharonian

We present compiled radio continuum spectra for 200 Galactic supernova remnants (SNRs) from 220 known and included in Green's (1998) catalog. These spectra include most of the measurements available in literature, as well as multi-frequency…

天体物理学 · 物理学 2007-05-23 Sergei A. Trushkin

A supernova remnant (SNR) candidate SRGe~J0023+3625 = G116.6-26.1 was recently discovered in the \textit{SRG}/eROSITA all-sky X-ray survey. This large ($\sim 4$ deg in diameter) SNR candidate lacks prominent counterparts in other bands.…

高能天体物理现象 · 物理学 2022-04-20 E. M. Churazov , I. I. Khabibullin , A. M. Bykov , N. N. Chugai , R. A. Sunyaev , I. I. Zinchenko

The youngest Galactic supernova remnant (SNR) G1.9+0.3, produced by a (probable) SN Ia that exploded $\sim 1900$ CE, is strongly asymmetric at radio wavelengths, much brighter in the north, but bilaterally symmetric in X-rays. We present…

高能天体物理现象 · 物理学 2017-03-08 K. J. Borkowski , P. Gwynne , S. P. Reynolds , D. A. Green , U. Hwang , R. Petre , R. Willett

We present XMM-Newton observations of N132D, the X-ray brightest supernova remnant (SNR) in the Large Magellanic Cloud (LMC), using the Reflection Grating Spectrometer (RGS) that enables high-resolution spectroscopy in the soft X-ray band.…

高能天体物理现象 · 物理学 2020-09-09 Hitomi Suzuki , Hiroya Yamaguchi , Manabu Ishida , Hiroyuki Uchida , Paul P. Plucinsky , Adam R. Foster , Eric D. Miller

Some extragalactic SNRs are more than two orders of magnitude more luminous than the young Galactic SNR Cas A. These SNRs are called super-luminous or ultra-luminous SNRs. Their high luminosities can be caused by chance superpositions of…

天体物理学 · 物理学 2007-05-23 You-Hua Chu , C. -H. Rosie Chen , Shih-Ping Lai

We report the discovery of high-energy $\gamma$-ray emission in the vicinity of G213.0-0.6, which is debated as a supernova remnant (SNR) or an ionized hydrogen (H$_{\rm{II}}$) region. Using 16-yr Pass 8 data from Fermi Large Area Telescope…

高能天体物理现象 · 物理学 2025-08-22 Yuan Li , Gwenael Giacinti , Siming Liu

We present optical, radio and X-ray data that confirm a new supernova remnant (SNR) in the Large Magellanic Cloud (LMC) discovered using our deep H-alpha imagery. Optically, the new SNR has a somewhat filamentary morphology and a diameter…

星系天体物理 · 物理学 2016-03-08 Warren A. Reid , Milorad Stupar , Luke M. Bozzetto , Quentin A. Parker , Miroslav D. Filipovic

We have mapped the northern area (30' times 20') of a local group spiral galaxy M33 in 12CO(J=1-0) line with the 45-m telescope at the Nobeyama Radio Observatory. Along with Halpha and Spitzer 24-micron data, we have investigated the…

We present new diagnostic tools for distinguishing supernova remnants (SNRs) from HII regions. Up to now, sources with flux ratio [S II]/H$\rm{\alpha}$ higher than 0.4 have been considered as SNRs. Here, we present the combinations of three…

星系天体物理 · 物理学 2020-01-08 M. Kopsacheili , A. Zezas , I. Leonidaki

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 dust temperature and mass of the supernova remnants (SNRs) in M31 are estimated by fitting the infrared spectral energy distribution calculated from the images in the Spitzer/IRAC4 and MIPS24, Herschel/PACS70, 100, 160, and…

星系天体物理 · 物理学 2022-01-19 Ye Wang , Biwei Jiang , Jun Li , He Zhao , Yi Ren

(Abridged) We present an analysis of X-ray observations made of the Galactic supernova remnants (SNRs) HB21 (G89.0+4.7) and CTB 1 (G116.9+0.2), two well-known mixed-morphology (MM) SNRs. We find a marked contrast between the X-ray…

高能天体物理现象 · 物理学 2015-05-20 Thomas G. Pannuti , Jeonghee Rho , Kazimierz J. Borkowski , P. Brian Cameron

We report the detection of near-infrared (NIR) [Fe II] (1.644 $\mu$m) and H$_{2}$ 1-0 S(1) (2.122 $\mu$m) line features associated with Galactic supernova remnants (SNRs) in the first quadrant using two narrowband imaging surveys, UWIFE and…

星系天体物理 · 物理学 2019-02-27 Yong-Hyun Lee , Bon-Chul Koo , Jae-Joon Lee , Michael G. Burton , Stuart Ryder

The middle-aged supernova remnant (SNR) CTB 37A is known to interact with several dense molecular clouds through the detection of shocked ${\rm H_{2}}$ and OH 1720 MHz maser emission. In the present work, we use eight years of $\textit…

高能天体物理现象 · 物理学 2020-06-24 Soheila Abdollahi , Jean ballet , Yasushi Fukazawa , Hideaki Katagiri , Benjamin Condon

The spectra fits to a sample of 34 supernova remnants (Zeng et al., 2019) are updated. $\gamma$-ray spectra of 20 supernova remnants (SNRs) with a soft TeV spectrum are further analyzed. We found that 17 of them can be fitted in the…

高能天体物理现象 · 物理学 2019-11-20 Houdun Zeng , Yuliang Xin , Qi Fu , Siming Liu
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