The Astrophysical Journal Letters (Jan 2023)
Serendipitous Nebular-phase JWST Imaging of SN Ia SN 2021aefx: Testing the Confinement of 56Co Decay Energy
- Ness Mayker Chen,
- Michael A. Tucker,
- Nils Hoyer,
- Saurabh W. Jha,
- Lindsey A. Kwok,
- Adam K. Leroy,
- Erik Rosolowsky,
- Chris Ashall,
- Gagandeep Anand,
- Frank Bigiel,
- Médéric Boquien,
- Chris Burns,
- Daniel Dale,
- James M. DerKacy,
- Oleg V. Egorov,
- L. Galbany,
- Kathryn Grasha,
- Hamid Hassani,
- Peter Hoeflich,
- Eric Hsiao,
- Ralf S. Klessen,
- Laura A. Lopez,
- Jing Lu,
- Nidia Morrell,
- Mariana Orellana,
- Francesca Pinna,
- Sumit K. Sarbadhicary,
- Eva Schinnerer,
- Melissa Shahbandeh,
- Maximilian Stritzinger,
- David A. Thilker,
- Thomas G. Williams
Affiliations
- Ness Mayker Chen
- ORCiD
- Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA ; [email protected]; Center for Cosmology and Astroparticle Physics , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Michael A. Tucker
- ORCiD
- Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA ; [email protected]; Center for Cosmology and Astroparticle Physics , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Nils Hoyer
- ORCiD
- Donostia International Physics Center , Paseo Manuel de Lardizabal 4, E-20118 Donostia-San Sebastián, Spain
- Saurabh W. Jha
- ORCiD
- Department of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854, USA
- Lindsey A. Kwok
- ORCiD
- Department of Physics and Astronomy, Rutgers, the State University of New Jersey , 136 Frelinghuysen Road, Piscataway, NJ 08854, USA
- Adam K. Leroy
- ORCiD
- Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA ; [email protected]; Center for Cosmology and Astroparticle Physics , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Erik Rosolowsky
- ORCiD
- Department of Physics, University of Alberta , Edmonton, AB T6G 2E1, Canada
- Chris Ashall
- Department of Physics, Virginia Tech , Blacksburg, VA 24061, USA
- Gagandeep Anand
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Frank Bigiel
- ORCiD
- Argelander-Institut für Astronomie, Universität Bonn , Auf dem Hügel 71, D-53121 Bonn, Germany
- Médéric Boquien
- ORCiD
- Centro de Astronomía (CITEVA), Universidad de Antofagasta , Avenida Angamos 601, Antofagasta, Chile
- Chris Burns
- ORCiD
- Observatories of the Carnegie Institution for Science , 813 Santa Barbara Street, Pasadena, CA 91101, USA
- Daniel Dale
- ORCiD
- Department of Physics and Astronomy, University of Wyoming , Laramie, WY 82071, USA
- James M. DerKacy
- ORCiD
- Department of Physics, Virginia Tech , Blacksburg, VA 24061, USA
- Oleg V. Egorov
- ORCiD
- Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg , Mönchhofstraße 12-14, D-69120 Heidelberg, Germany
- L. Galbany
- ORCiD
- Institute of Space Sciences (ICE, CSIC) , Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain; Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, Spain
- Kathryn Grasha
- ORCiD
- Research School of Astronomy and Astrophysics, Australian National University , Canberra, ACT 2611, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
- Hamid Hassani
- ORCiD
- Department of Physics, University of Alberta , Edmonton, AB T6G 2E1, Canada
- Peter Hoeflich
- ORCiD
- Department of Physics, Florida State University , 77 Chieftan Way, Tallahassee, FL 32306, USA
- Eric Hsiao
- ORCiD
- Department of Physics, Florida State University , 77 Chieftan Way, Tallahassee, FL 32306, USA
- Ralf S. Klessen
- ORCiD
- Universität Heidelberg , Zentrum für Astronomie, Institut für Theoretische Astrophysik, Albert-Ueberle-Str. 2, D-69120 Heidelberg, Germany; Universität Heidelberg , Interdisziplinäres Zentrum für Wissenschaftliches Rechnen, Im Neuenheimer Feld 205, D-69120 Heidelberg, Germany
- Laura A. Lopez
- ORCiD
- Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA ; [email protected]; Center for Cosmology and Astroparticle Physics , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Jing Lu
- ORCiD
- Department of Physics, Florida State University , 77 Chieftan Way, Tallahassee, FL 32306, USA
- Nidia Morrell
- ORCiD
- Las Campanas Observatory , Carnegie Observatories, Casilla 601, La Serena, Chile
- Mariana Orellana
- Universidad Nacional de Río Negro. Sede Andina , Mitre 630 (8400), Bariloche, Argentina; Consejo Nacional de Investigaciones Científicas y Tećnicas (CONICET) , Argentina
- Francesca Pinna
- ORCiD
- Max Planck Institute for Astronomy , Königstuhl 17, D-69117 Heidelberg, Germany
- Sumit K. Sarbadhicary
- ORCiD
- Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA ; [email protected]; Center for Cosmology and Astroparticle Physics , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Eva Schinnerer
- ORCiD
- Max Planck Institute for Astronomy , Königstuhl 17, D-69117 Heidelberg, Germany
- Melissa Shahbandeh
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Maximilian Stritzinger
- ORCiD
- Department of Physics and Astronomy, Aarhus University , Ny Munkegade 120, DK-8000 Aarhus C, Denmark
- David A. Thilker
- ORCiD
- Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Thomas G. Williams
- ORCiD
- Sub-department of Astrophysics, Department of Physics, University of Oxford , Keble Road, Oxford OX1 3RH, UK
- DOI
- https://doi.org/10.3847/2041-8213/acb6d8
- Journal volume & issue
-
Vol. 944,
no. 2
p. L28
Abstract
We present new 0.3–21 μ m photometry of SN 2021aefx in the spiral galaxy NGC 1566 at +357 days after B -band maximum, including the first detection of any Type Ia supernova (SN Ia) at >15 μ m. These observations follow earlier JWST observations of SN 2021aefx at +255 days after the time of maximum brightness, allowing us to probe the temporal evolution of the emission properties. We measure the fraction of flux emerging at different wavelengths and its temporal evolution. Additionally, the integrated 0.3–14 μ m decay rate of Δ m _0.3–14 = 1.35 ± 0.05 mag/100 days is higher than the decline rate from the radioactive decay of ^56 Co of ∼1.2 mag/100 days. The most plausible explanation for this discrepancy is that flux is shifting to >14 μ m, and future JWST observations of SNe Ia will be able to directly test this hypothesis. However, models predicting nonradiative energy loss cannot be excluded with the present data.
Keywords
