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: kinematics and dynamics

ISM: individual objects: IC443, clump G

ISM: supernova remnants

ISM: clouds

Författare

Giuliana Cosentino

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik, Astronomi och plasmafysik 2

I Jimenez-Serra

Centro de Astrobiología (INTA-CSIC)

Jonathan Tan

University of Virginia

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

J. D. Henshaw

Max-Planck-Gesellschaft

A. T. Barnes

Universität Bonn

Chi Yan Law

European Southern Observatory (ESO)

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik, Astronomi och plasmafysik 2

S. Zeng

RIKEN

F. Fontani

INAF Osservatorio Astron Arcetri

P. Caselli

Max-Planck-Institut für extraterrestrische Physik

S. Viti

University College London (UCL)

Universiteit Leiden

S. Zahorecz

Osaka Prefecture University

National Institutes of Natural Sciences

F. Rico-Villas

Centro de Astrobiología (INTA-CSIC)

A. Megias

Centro de Astrobiología (INTA-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

Universita degli Studi di Palermo

Istituto nazionale di astrofisica (INAF)

F. Bocchino

Istituto nazionale di astrofisica (INAF)

Rubén Fedriani

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik, Astronomi och plasmafysik 2

Prasanta Gorai

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik, Astronomi och plasmafysik 2

L. Testi

European Southern Observatory Santiago

J. Martin-Pintado

Centro de Astrobiología (INTA-CSIC)

Monthly Notices of the Royal Astronomical Society

0035-8711 (ISSN) 1365-2966 (eISSN)

Vol. 511 1 953-963

Ämneskategorier

Astronomi, astrofysik och kosmologi

DOI

10.1093/mnras/stac070

Mer information

Senast uppdaterat

2022-04-07