2023ApJ...944L..28M

Query : 2023ApJ...944L..28M

2023ApJ...944L..28M - Astrophys. J., 944, L28 (2023/February-3)

Serendipitous Nebular-phase JWST Imaging of SN Ia SN 2021aefx: Testing the Confinement of 56Co Decay Energy.

MAYKER CHEN N., TUCKER M.A., HOYER N., JHA S.W., KWOK L.A., LEROY A.K., ROSOLOWSKY E., ASHALL C., ANAND G., BIGIEL F., BOQUIEN M., BURNS C., DALE D., DERKACY J.M., EGOROV O.V., GALBANY L., GRASHA K., HASSANI H., HOEFLICH P., HSIAO E., KLESSEN R.S., LOPEZ L.A., LU J., MORRELL N., ORELLANA M., PINNA F., SARBADHICARY S.K., SCHINNERER E., SHAHBANDEH M., STRITZINGER M., THILKER D.A. and WILLIAMS T.G.

Abstract (from CDS):

We present new 0.3-21 μm 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 μm. 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 μm decay rate of Δm0.3–14 = 1.35 ± 0.05 mag/100 days is higher than the decline rate from the radioactive decay of 56Co of ∼1.2 mag/100 days. The most plausible explanation for this discrepancy is that flux is shifting to >14 μm, 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.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Type Ia supernovae - Supernovae - Spiral galaxies - Infrared astronomy

Simbad objects: 15

goto Full paper

goto View the references in ADS

Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
2 SN 2003hv SN* 03 04 09.32 -26 05 07.5     12.5     SNIa 134 1
3 SN 2012fr SN* 03 33 35.99 -36 07 37.7           SNIa-norm 178 1
4 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
5 NGC 1385 EmG 03 37 28.323 -24 30 04.60 11.28 11.50 10.94 10.45 11.7 ~ 318 2
6 SN 2005df SN* 04 17 37.85 -62 46 09.5     13.8     SNIa 91 1
7 SN 2021aefx SN* 04 19 53.380 -54 56 53.24           SNIa 48 0
8 SN 2010el SN* 04 19 58.83 -54 56 38.5           SNIapec: 19 1
9 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 1051 2
10 SN 2014J SN* 09 55 42.12 +69 40 25.9           SNIa-norm 456 1
11 SN 2011by SN* 11 55 45.56 +55 19 33.8   12.97 12.95     SNIa-norm 109 1
12 SN 2012cg SN* 12 27 12.83 +09 25 13.2           SNIa-norm 224 1
13 SN 2011fe SN* 14 03 05.711 +54 16 25.22   10.12 10.06     SNIa-norm 747 1
14 NGC 7496 Sy2 23 09 47.2876854912 -43 25 40.279652796   11.92 13.90 10.95 11.5 ~ 350 1
15 IC 5332 GiG 23 34 27.488 -36 06 03.89 11.59 11.27 10.72 10.50 11.2 ~ 216 0

To bookmark this query, right click on this link: simbad:objects in 2023ApJ...944L..28M and select 'bookmark this link' or equivalent in the popup menu