Abstract
We measure the molecular gas environment near recent (<100 yr old) supernovae (SNe) using ∼1″ or ≤150 pc resolution CO (2-1) maps from the PHANGS-Atacama Large Millimeter/submillimeter Array (ALMA) survey of nearby star-forming galaxies. This is arguably the first such study to approach the scales of individual massive molecular clouds (M mol ≳ 105.3 M ⊙). Using the Open Supernova Catalog, we identify 63 SNe within the PHANGS-ALMA footprint. We detect CO (2-1) emission near ∼60% of the sample at 150 pc resolution, compared to ∼35% of map pixels with CO (2-1) emission, and up to ∼95% of the SNe at 1 kpc resolution, compared to ∼80% of map pixels with CO (2-1) emission. We expect the ∼60% of SNe within the same 150 pc beam, as a giant molecular cloud will likely interact with these clouds in the future, consistent with the observation of widespread SN-molecular gas interaction in the Milky Way, while the other ∼40% of SNe without strong CO (2-1) detections will deposit their energy in the diffuse interstellar medium, perhaps helping drive large-scale turbulence or galactic outflows. Broken down by type, we detect CO (2-1) emission at the sites of ∼85% of our 9 stripped-envelope SNe (SESNe), ∼40% of our 34 Type II SNe, and ∼35% of our 13 Type Ia SNe, indicating that SESNe are most closely associated with the brightest CO (2-1) emitting regions in our sample. Our results confirm that SN explosions are not restricted to only the densest gas, and instead exert feedback across a wide range of molecular gas densities.
| Original language | English |
|---|---|
| Article number | 110 |
| Journal | Astrophysical Journal |
| Volume | 944 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 1 2023 |
Bibliographical note
Publisher Copyright:© 2023. The Author(s). Published by the American Astronomical Society.
Funding
K.G. is supported by the Australian Research Council through the Discovery Early Career Researcher Award (DECRA) Fellowship DE220100766 funded by the Australian Government. N.M.C. thanks the Ohio State University’s Galaxy and Supernova groups, including Christopher Kochanek, Kris Stanek, and Patrick Vallely, for useful discussions at several stages of the project. This work was carried out as part of the PHANGS collaboration. S.C.O.G. acknowledges financial support from the DFG via the collaborative research center (SFB 881, Project-ID 138713538) “The Milky Way System” (subprojects A1, B1, B2, B8, and P2). They also acknowledge funding from the Heidelberg Cluster of Excellence “STRUCTURES” in the framework of Germany's Excellence Strategy (grant EXC-2181/1, Project-ID 390900948) and from the European Research Council via the ERC Synergy Grant “ECOGAL” (grant 855130). The work of J.S. is partially supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) through the Canadian Institute for Theoretical Astrophysics (CITA) National Fellowship. Support for this work was provided by the NSF through award SOSP SOSPADA-010 from the NRAO, which supported the work of N.M.C. The work of N.M.C., A.K.L., and J.S. was partially supported by the National Science Foundation (NSF) under grants No. 1615105, 1615109, and 1653300. E.S. and T.G.W. acknowledge funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No. 694343). The work of J.S. and A.K.L. is partially supported by the National Aeronautics and Space Administration (NASA) under ADAP grants NNX16AF48G and NNX17AF39G. M.C. and J.M.D.K. gratefully acknowledge funding from the DFG through an Emmy Noether Research Group (grant number KR4801/1-1) and the DFG Sachbeihilfe (grant number KR4801/2-1), as well as from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program via the ERC Starting Grant MUSTANG (grant agreement number 714907). M.C. gratefully acknowledges funding from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through an Emmy Noether Research Group (grant number CH2137/1-1). COOL Research DAO is a Decentralized Autonomous Organization supporting research in astrophysics aimed at uncovering our cosmic origins. GAB acknowledges support from the ANID BASAL FB210003 project. H.A.P. acknowledges support by the Ministry of Science and Technology of Taiwan under grant 110-2112-M-032-020-MY3.
| Funders | Funder number |
|---|---|
| Australian Victorian Government | |
| Ohio State University’s Galaxy and Supernova groups | |
| Engineering Research Centers | |
| Canadian Institute for Theoretical Astrophysics | |
| Natural Sciences and Engineering Research Council of Canada | |
| National Radio Astronomy Observatory | |
| H2020 European Research Council | |
| Horizon 2020 | |
| National Aeronautics and Space Administration | NNX16AF48G, NNX17AF39G |
| California Department of Fish and Game | 138713538, KR4801/1-1 |
| German Excellence Strategy in the Heidelberg Cluster of Excellence STRUCTURES | EXC-2181/1, 390900948 |
| Horizon 2020 Framework Programme | 694343, 726384, 714907, 855130 |
| Australian Research Council | DE220100766 |
| Deutsche Forschungsgemeinschaft | CH2137/1-1 |
| Agencia Nacional de Investigación y Desarrollo | BASAL FB210003 |
| Ministry of Science and Technology, Taiwan | 110-2112-M-032-020-MY3 |
| National Science Foundation Arctic Social Science Program | 1615109, 1653300, 1615105 |
| DFG Sachbeihilfe | KR4801/2-1 |
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
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