2020MNRAS.496...95G

Query : 2020MNRAS.496...95G

2020MNRAS.496...95G - Mon. Not. R. Astron. Soc., 496, 95-110 (2020/July-3)

DES16C3cje: A low-luminosity, long-lived supernova.

GUTIERREZ C.P., SULLIVAN M., MARTINEZ L., BERSTEN M.C., INSERRA C., SMITH M., ANDERSON J.P., PAN Y.-C., PASTORELLO A., GALBANY L., NUGENT P., ANGUS C.R., BARBARINO C., CAROLLO D., CHEN T.-W., DAVIS T.M., DELLA VALLE M., FOLEY R.J., FRASER M., FROHMAIER C., GONZALEZ-GAITAN S., GROMADZKI M., KANKARE E., KOKOTANEKOVA R., KOLLMEIER J., LEWIS G.F., MAGEE M.R., MAGUIRE K., MOLLER A., MORRELL N., NICHOLL M., PURSIAINEN M., SOLLERMAN J., SOMMER N.E., SWANN E., TUCKER B.E., WISEMAN P., AGUENA M., ALLAM S., AVILA S., BERTIN E., BROOKS D., BUCKLEY-GEER E., BURKE D.L., CARNERO ROSELL A., CARRASCO KIND M., CARRETERO J., COSTANZI M., DA COSTA L.N., DE VICENTE J., DESAI S., DIEHL H.T., DOEL P., EIFLER T.F., FLAUGHER B., FOSALBA P., FRIEMAN J., GARCIA-BELLIDO J., GERDES D.W., GRUEN D., GRUENDL R.A., GSCHWEND J., GUTIERREZ G., HINTON S.R., HOLLOWOOD D.L., HONSCHEID K., JAMES D.J., KUEHN K., KUROPATKIN N., LAHAV O., LIMA M., MAIA M.A.G., MARCH M., MENANTEAU F., MIQUEL R., MORGANSON E., PALMESE A., PAZ-CHINCHON F., PLAZAS A.A., SAKO M., SANCHEZ E., SCARPINE V., SCHUBNELL M., SERRANO S., SEVILLA-NOARBE I., SOARES-SANTOS M., SUCHYTA E., SWANSON M.E.C., TARLE G., THOMAS D., VARGA T.N., WALKER A.R., WILKINSON R. (The DES Collaboration)

Abstract (from CDS):

We present DES16C3cje, a low-luminosity, long-lived type II supernova (SN II) at redshift 0.0618, detected by the Dark Energy Survey (DES). DES16C3cje is a unique SN. The spectra are characterized by extremely narrow photospheric lines corresponding to very low expansion velocities of <=1500 km s–1, and the light curve shows an initial peak that fades after 50 d before slowly rebrightening over a further 100 d to reach an absolute brightness of Mr ∼ -15.5 mag. The decline rate of the late-time light curve is then slower than that expected from the powering by radioactive decay of 56Co, but is comparable to that expected from accretion power. Comparing the bolometric light curve with hydrodynamical models, we find that DES16C3cje can be explained by either (i) a low explosion energy (0.11 foe) and relatively large 56Ni production of 0.075 M☉ from an ∼15 M☉ red supergiant progenitor typical of other SNe II, or (ii) a relatively compact ∼40 M☉ star, explosion energy of 1 foe, and 0.08 M☉ of 56Ni. Both scenarios require additional energy input to explain the late-time light curve, which is consistent with fallback accretion at a rate of ∼0.5 x 10–8 M☉ s–1.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): supernovae: general - supernovae: individual: (DES16C3cje)

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 13

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Number of rows : 13
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 SN 2004ek SN* 01 09 58.51 +32 22 47.7     17.1     SNII 25 1
2 2dFGRS TGS243Z257 G 03 28 35.04 -27 09 06.8   19.127   18.824   ~ 2 0
3 DES16C3cje SN* 03 28 35.29 -27 09 06.6           SNII 4 0
4 OGLE 2014-SN-73 SN* 05 28 51.63 -62 20 16.1           SNII 40 0
5 SN 1987A SN* 05 35 27.98840 -69 16 11.1134           SNIIpec 5203 2
6 SN 2003Z SN* 09 07 32.46 +60 29 17.5     16.7     SNIIP 83 1
7 SN 2016bse SN* 09 20 34.30 +50 41 46.8           SNIIP 134 0
8 SN 2009E SN* 12 09 49.56 +58 50 50.3           ~ 60 1
9 SN 1999br SN* 13 00 41.80 +02 29 45.8     17.5     SNIIPp 171 1
10 SN 2005cs SN* 13 29 53.37 +47 10 28.2   14.5       SNIIP 450 1
11 SN 2005ci SN* 14 34 44.88 +48 40 19.8     18.5     SNII 34 1
12 SN 2013K SN* 17 39 31.54 -85 18 38.1           SNIIP 18 1
13 SN 2004em SN* 19 31 31.11 +35 52 15.7     17.5     SNII 21 1

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