Negative and positive feedback from a supernova remnant with SHREC. a detailed study of the shocked gas in IC443
Artikel i vetenskaplig tidskrift, 2022
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 the surrounding material. Despite the extensive work in galaxy evolution models, it remains to be observationally validated to what extent the molecular ISM is affected by the interaction with SNRs. We use the first results of the ESO-ARO Public Spectroscopic Survey SHREC to investigate the shock interaction between the SNR IC443 and the nearby molecular clump G. We use high-sensitivity SiO(2-1) and (HCO+)-C-13 (1-0) maps obtained by SHREC together with SiO(1-0) observations obtained with the 40-m telescope at the Yebes Observatory. We find that the bulk of the SiO emission is arising from the ongoing shock interaction between IC443 and clump G. The shocked gas shows a well-ordered kinematic structure, with velocities blue-shifted with respect to the central velocity of the SNR, similar to what observed towards other SNR-cloud interaction sites. The shock compression enhances the molecular gas density, n(H-2), up to >10(5) cm(-3), a factor of >10 higher than the ambient gas density and similar to values required to ignite star formation. Finally, we estimate that up to 50 per cent of the momentum injected by IC443 is transferred to the interacting molecular material. Therefore, the molecular ISM may represent an important momentum carrier in sites of SNR-cloud interactions.
ISM: supernova remnants
ISM: individual objects: IC443, clump G
ISM: kinematics and dynamics
ISM: clouds
Författare
Giuliana Cosentino
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
I Jimenez-Serra
Consejo Superior de Investigaciones Científicas (CSIC)
Jonathan Tan
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
University of Virginia
J. D. Henshaw
Max-Planck-Gesellschaft
A. T. Barnes
Universität Bonn
Chi Yan Law
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
European Southern Observatory (ESO)
S. Zeng
RIKEN
F. Fontani
Istituto nazionale di astrofisica (INAF)
P. Caselli
Max-Planck-Gesellschaft
S. Viti
University College London (UCL)
Universiteit Leiden
S. Zahorecz
National Institutes of Natural Sciences
Osaka Prefecture University
F. Rico-Villas
Consejo Superior de Investigaciones Científicas (CSIC)
A. Megias
Consejo Superior de Investigaciones Científicas (CSIC)
M. Miceli
Universita degli Studi di Palermo
Istituto nazionale di astrofisica (INAF)
S. Orlando
Istituto nazionale di astrofisica (INAF)
S. Ustamujic
Istituto nazionale di astrofisica (INAF)
E. Greco
Universiteit Van Amsterdam
Istituto nazionale di astrofisica (INAF)
G. Peres
Istituto nazionale di astrofisica (INAF)
Universita degli Studi di Palermo
F. Bocchino
Istituto nazionale di astrofisica (INAF)
Rubén Fedriani
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
Prasanta Gorai
Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik
L. Testi
European Southern Observatory Santiago
J. Martin-Pintado
Consejo Superior de Investigaciones Científicas (CSIC)
Monthly Notices of the Royal Astronomical Society
0035-8711 (ISSN) 1365-2966 (eISSN)
Vol. 511 1 953-963Ämneskategorier (SSIF 2011)
Astronomi, astrofysik och kosmologi
DOI
10.1093/mnras/stac070