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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…

星系天体物理 · 物理学 2024-03-21 Tian-Yu Tu , Yang Chen , Ping Zhou , Samar Safi-Harb

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…

星系天体物理 · 物理学 2024-11-15 Tian-Yu Tu , Yang Chen , Qian-Cheng Liu

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…

星系天体物理 · 物理学 2022-12-21 Parichay Mazumdar , Le Ngoc Tram , Friedrich Wyrowski , Karl M. Menten , Xindi Tang

Galactic supernova remnants (SNRs) and their environments provide the nearest laboratories to study SN feedback. We performed molecular observations toward SNR W49B, the most luminous Galactic SNR in the X-ray band, aiming to explore signs…

Recent observations suggest that Tycho's supernova remnant (SNR; SN 1572) is expanding into a cavity wall of molecular clouds (MCs), which decelerate the SNR and influence its multi-wavelength morphology. To constrain the physical…

星系天体物理 · 物理学 2025-12-12 Sendi Bo , Yu Huang , Ping Zhou , Tian-Yu Tu , Samar Safi-Harb , Zhi-Yu Zhang , Yang Chen , Hidetoshi Sano

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…

星系天体物理 · 物理学 2015-06-04 A. Gusdorf , S. Anderl , R. Guesten , J. Stutzki , H-W. Huebers , P. Hartogh , S. Heyminck , Y. Okada

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…

天体物理学 · 物理学 2014-10-13 William T. reach , Jeonghee Rho , T. H. Jarrett

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…

星系天体物理 · 物理学 2024-11-07 William T. Reach , Ngoc Le Tram , Curtis DeWitt , Pierre Lesaffre , Benjamin Godard , Antoine Gusdorf

Cosmic rays (CRs) have strong influences on the chemistry of dense molecular clouds (MCs). To study the detailed chemistry induced by CRs, we conducted a Yebes W band line survey towards an unshocked MC (which we named as 3C391:NML)…

星系天体物理 · 物理学 2024-08-28 Tian-Yu Tu , Prathap Rayalacheruvu , Liton Majumdar , Yang Chen , Ping Zhou , Miguel Santander-García

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 remnants (SNRs) contribute to regulate the star formation efficiency and evolution of galaxies. As they expand into the interstellar medium (ISM), they transfer vast amounts of energy and momentum that displace, compress and heat…

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

Using the IRAM 30-m telescope, we observed the supernova remnant 3C 391 (G31.9+0.0) and its surroundings in the CO(2-1), HCO+(1-0), CS(2-1), CS(3-2), and CS(5-4) lines. The ambient molecular gas at the distance (9 kpc) of the remnant…

天体物理学 · 物理学 2009-10-30 William T. Reach , Jeonghee Rho

We present observations of molecular gas made with the 15-m James Clark Maxwell Telescope toward the sites of OH(1720 MHz) masers in three supernova remnants: W28, W44 and 3C391. Maps made in the 12CO J=3-2 line reveal that the OH masers…

天体物理学 · 物理学 2009-10-30 Dale A. Frail , George F. Mitchell

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

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…

星系天体物理 · 物理学 2019-11-06 William T. Reach , Le Ngoc Tram , Matthew Richter , Antoine Gusdorf , Curtis DeWitt

Core-collapse supernova (SN) explosions may occur in the highly inhomogeneous molecular clouds (MCs) in which their progenitors were born. We perform a series of 3-dimensional hydrodynamic simulations to model the interaction between an…

高能天体物理现象 · 物理学 2018-10-17 Dong Zhang , Roger A. Chevalier

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,…

星系天体物理 · 物理学 2016-12-28 J. Rho , J. Bieging , J. Hewitt , M. Andersen , W. T. Reach , R. Guesten

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 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…

星系天体物理 · 物理学 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
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