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Related papers: Interaction between Cassiopeia A and Nearby Molecu…

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The field just West of the galactic supernova remnant W28 (l=6.4\degr, b=-0.2\degr) harbors 3 of 5 newly-discovered 1720 OH maser spots and two recently-discovered candidate supernova candidates (one of which is a $\gamma$-ray source), as…

Astrophysics of Galaxies · Physics 2015-05-13 H. S. Liszt

We present three-dimensional kinematic reconstructions of optically emitting material in the young Galactic supernova remnant Cassiopeia A (Cas A). These Doppler maps have the highest spectral and spatial resolutions of any previous survey…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Dan Milisavljevic , Robert A. Fesen

We carried out new CO($J$ = 2-1) observations toward the mixed-morphology supernova remnant (SNR) W49B with the Atacama Large Millimeter/submillimeter Array (ALMA). We found that CO clouds at $\sim$10 km s$^{-1}$ show a good spatial…

High Energy Astrophysical Phenomena · Physics 2021-10-05 H. Sano , S. Yoshiike , Y. Yamane , K. Hayashi , R. Enokiya , K. Tokuda , K. Tachihara , G. Rowell , M. D. Filipović , Y. Fukui

Cassiopeia A, a well-observed young core-collapse supernova remnant (SNR), is considered as one of the best candidates for studying very high-energy particle acceleration up to PeV via the diffusive shock mechanism. Recently, MAGIC…

High Energy Astrophysical Phenomena · Physics 2019-04-03 Xiao Zhang , Siming Liu

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

A large amount (about three solar masses) of cold (18 K) dust in the prototypical type II supernova remnant Cassiopeia A was recently reported. It was concluded that dust production in type II supernovae can explain how the large quantities…

Astrophysics · Physics 2007-05-23 O. Krause , S. M. Birkmann , G. H. Rieke , D. Lemke , U. Klaas , D. C. Hines , K. D. Gordon

Using the 3.5-m Herschel Space Observatory, imaging photometry of Cas A has been obtained in six bands between 70 um and 500 um with the PACS and SPIRE instruments, with angular resolutions ranging from 6 to 37". In the outer regions of the…

We report on CO and HI studies of the mixed-morphology supernova remnant (SNR) G346.6$-$0.2. We find a wind-blown bubble along the radio continuum shell with an expansion velocity of $\sim10$ km s$^{-1}$, which was likely formed by strong…

High Energy Astrophysical Phenomena · Physics 2021-12-15 H. Sano , H. Suzuki , K. K. Nobukawa , M. D. Filipović , Y. Fukui , T. J. Moriya

Cassiopeia A (Cas A) supernova remnant shows strong radiation from radio to gamma-ray bands. The mechanism of gamma-ray radiation in Cas A and its possible contribution to PeV cosmic rays are still under debate. The X-ray imaging reveals an…

High Energy Astrophysical Phenomena · Physics 2022-06-01 Shihong Zhan , Wei Wang , Guobin Mou , Zhuo Li

We present results of wide-field $^{12}$CO ($J = 2 - 1$) and $^{13}$CO ($J = 2 - 1$) observations toward the Aquila Rift and Serpens molecular cloud complexes (25$^\circ < l < 33^\circ$ and $1^\circ < b < 6^\circ$) at an angular resolution…

Astrophysics of Galaxies · Physics 2017-03-22 Fumitaka Nakamura , Kazuhito Dobashi , Tomomi Shimoikura , Tomohiro Tanaka , Toshikazu Onishi

We present results from the first light observations of the Cassiopeia A (Cas A) supernova remnant (SNR) by the Chandra X-ray Observatory. The X-ray spectrum varies on all spatial scales down to the instrumental limit (0.02 pc at the SNR).…

Astrophysics · Physics 2011-09-29 John P. Hughes , Cara E. Rakowski , David N. Burrows , Patrick O. Slane

Supernova remnants (SNRs) can exert strong influence on molecular clouds (MCs) through interaction by shock wave and cosmic rays. In this paper, we present our mapping observation of HCO+ and HCN 1-0 lines towards 13 SNRs interacting with…

Astrophysics of Galaxies · Physics 2024-11-15 Tian-Yu Tu , Yang Chen , Qian-Cheng Liu

The properties of molecular gas, the fuel that forms stars, inside the cavity of the circumnuclear disk (CND) are not well constrained. We present results of a velocity-resolved submillimeter scan (~480 to 1250 GHz}) and [CII]158um line…

Astrophysics of Galaxies · Physics 2018-08-22 Javier R. Goicoechea , M. G. Santa-Maria , D. Teyssier , J. Cernicharo , M. Gerin , J. Pety

We present an analysis of results on absorption from Ca II, Ca I, K I, and the molecules CH+, CH, C2, and CN that probes gas interacting with the supernova remnant IC443. The eleven directions sample material across the visible nebula and…

Astrophysics of Galaxies · Physics 2011-02-11 A. Hirschauer , S. R. Federman , George Wallerstein , T. Means

We present 12CO J = 2-1 line observations of G54.1+0.3, a composite supernova remnant with a mid-infrared (MIR) loop surrounding the central pulsar wind nebula (PWN). We mapped an area of 12' x 9' around the PWN and its associated MIR loop.…

Astrophysics of Galaxies · Physics 2015-06-11 Jung-Won Lee , Bon-Chul Koo , Jeong-Eun Lee

Aims. The interaction of supernova remnants (SNRs) with molecular clouds gives rise to strong molecular emission in the far-IR and sub-mm wavelength regimes. The application of MHD shock models in the interpretation of this line emission…

Astrophysics of Galaxies · Physics 2014-10-01 S. Anderl , A. Gusdorf , R. Güsten

We performed millimeter observations in CO lines toward the supernova remnant (SNR) G127.1+0.5. We found a molecular filament at 4--13 km s$^{-1}$ consisting of two distinct parts: a straight part coming out of the remnant region and a…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Xin Zhou , Ji Yang , Min Fang , Yang Su

Statistics of the magnetic field disturbances in the supernova remnants (SNRs) can be accessed using the second-order correlation function of the synchrotron intensities. Here we measure the magnetic energy spectra in supernova remnant…

High Energy Astrophysical Phenomena · Physics 2020-09-15 Pavan Kumar Vishwakarma , Jais Kumar

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…

Solar and Stellar Astrophysics · Physics 2015-05-20 Jin-Long Xu , Jun-Jie Wang , Martin Miller

We carried out new $^{12}$CO($J$ = 1-0, 3-2) observations of a N63A supernova remnant (SNR) from the LMC using ALMA and ASTE. We find three giant molecular clouds toward the northeast, east, and near the center of the SNR. Using the ALMA…