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Context. Observing supernova remnants (SNRs) and modelling the shocks they are associated with is the best way to quantify the energy SNRs re-distribute back into the Interstellar Medium (ISM). Aims. We present comparisons of shock models…

Astrophysics of Galaxies · Physics 2015-06-04 A. Gusdorf , S. Anderl , R. Guesten , J. Stutzki , H-W. Huebers , P. Hartogh , S. Heyminck , Y. Okada

Supernova remnants (SNRs) are considered as being the sources of galactic cosmic rays. In order to understand the origin, acceleration, and composition of these cosmic rays, detailed knowledge of the physical conditions in the local…

Astrophysics of Galaxies · Physics 2015-03-24 Sibylle Anderl , Antoine Gusdorf , Rolf Güsten

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

Supernovae from core-collapse of massive stars drive shocks into the molecular clouds from which the stars formed. Such shocks affect future star formation from the molecular clouds, and the fast-moving, dense gas with compressed magnetic…

Astrophysics of Galaxies · Physics 2019-11-06 William T. Reach , Le Ngoc Tram , Matthew Richter , Antoine Gusdorf , Curtis DeWitt

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

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

Supernova remnants (SNRs) exert strong influence on the physics and chemistry of the nearby molecular clouds (MCs) through shock waves and the cosmic rays (CRs) they accelerate. To investigate the SNR-cloud interaction in the prototype…

Astrophysics of Galaxies · Physics 2024-03-21 Tian-Yu Tu , Yang Chen , Ping Zhou , Samar Safi-Harb

Supernova shocks into dense molecular cores in IC 443 (clumps B, C, and G) and 3C 391 were observed using the Stratospheric Observatory for Infrared Astronomy and complemented by archival data from the Herschel Space Observatory. The pure…

Astrophysics of Galaxies · Physics 2024-11-07 William T. Reach , Ngoc Le Tram , Curtis DeWitt , Pierre Lesaffre , Benjamin Godard , Antoine Gusdorf

We report a discovery of shocked gas from the supernova remnant (SNR) G357.7+0.3. Our millimeter and submillimeter observations reveal broad molecular lines of CO(2-1), CO(3-2), CO(4-3), 13CO (2-1) and 13CO (3-2), HCO^+ and HCN using HHSMT,…

Astrophysics of Galaxies · Physics 2016-12-28 J. Rho , J. Bieging , J. Hewitt , M. Andersen , W. T. Reach , R. Guesten

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…

Astrophysics of Galaxies · Physics 2021-02-02 Yoshiaki Sofue

High resolution millimeter-wave and near-infrared observations of the supernova remnants W28 and W44 reveal extensive shocked molecular gas where supernova blast waves are propagating into giant molecular clouds. New CO observations were…

Astrophysics · Physics 2014-10-13 William T. reach , Jeonghee Rho , T. H. Jarrett

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…

Astrophysics of Galaxies · Physics 2022-02-23 Qian-Cheng Liu , Ping Zhou , Yang Chen

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.…

Astrophysics · Physics 2009-10-31 Estela M. Reynoso , Jeffrey G. Mangum

How Supernova Remnant (SNR) shocks impact nearby molecular clouds is still poorly observationally constrained. It is unclear if SNRs can positively or negatively affect clouds star formation potential. We have studied the dense gas…

We present the first results of the expected variations of the molecular line emission arising from material recently affected by C-shocks (shock precursors). Our parametric model of the structure of C-shocks has been coupled with a…

Astrophysics of Galaxies · Physics 2011-02-11 I. Jimenez-Serra , J. Martin-Pintado , P. Caselli , S. Viti , A. Rodriguez-Franco

Shock waves from supernova remnants (SNRs) have strong influence on the physical and chemical properties of molecular clouds (MCs). Shocks propagating into magnetized MCs can be classified into "jump" J-shock and "continuous" C-shock. The…

Astrophysics of Galaxies · Physics 2025-01-22 Tian-Yu Tu , Valentine Wakelam , Yang Chen , Ping Zhou , Qian-Qian Zhang

We have performed the submillimeter and millimeter observations in CO lines toward supernova remnant (SNR) IC443. CO molecular shell is well coincident with the partial shell of the SNR detected in radio continuum observations. The broad…

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

We utilize observations of sub-millimeter rotational transitions of CO from a Herschel Cycle 2 open time program ("COPS", PI: J. Green) to identify previously predicted turbulent dissipation by magnetohydrodynamic (MHD) shocks in molecular…

Astrophysics of Galaxies · Physics 2022-03-17 Rebecca L. Larson , Neal J. Evans , Joel D. Green , Yao-Lun Yang

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

Context: Supernovae (SNe) inject large amounts of energy and chemically enriched materials into their surrounding interstellar medium and, in some instances, into molecular clouds (MCs). The interaction of a supernova remnant (SNR) with a…

Astrophysics of Galaxies · Physics 2022-12-21 Parichay Mazumdar , Le Ngoc Tram , Friedrich Wyrowski , Karl M. Menten , Xindi Tang
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