2019MNRAS.490.2042U


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.31CEST16:50:02

2019MNRAS.490.2042U - Mon. Not. R. Astron. Soc., 490, 2042-2049 (2019/December-1)

Resolving the puzzle of type IIP SN 2016X.

UTROBIN V.P. and CHUGAI N.N.

Abstract (from CDS):

The enigmatic type IIP SN 2016X demonstrates the unprecedented asphericity in the nebular Hα line profile, the absence of nebular [O I] emission, and the unusual occultation effect due to the internal dust. The hydrodynamic modelling of the bolometric light curve and expansion velocities suggests that the event is an outcome of the massive star explosion that ejected 28 M with the kinetic energy of 1.7 x 1051 erg and 0.03 M of radioactive 56Ni. We recover the bipolar distribution of 56Ni from the Hα profile via the simulation of the emissivity produced by non-spherical 56Ni ejecta. The conspicuous effect of the dust absorption in the Hα profile rules out the occultation by the dusty sphere or dusty thick disc, but turns out consistent with the thin dusty disc-like structure in the plane perpendicular to the bipolar axis. We speculate that the absence of the nebular [O I] emission might originate from the significant cooling of the oxygen-rich matter mediated by CO and SiO molecules.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): hydrodynamics - methods: numerical - supernovae: general - supernovae: individual: SN 2016X

Status at CDS:  

Simbad objects: 15

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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 - 2020
#notes
1 SN 2013ej SN* 01 36 48.16 +15 45 31.0           SNIIP 114 0
2 SN 1999em SN* 04 41 27.04 -02 51 45.2   13.79 13.7     SNIIP 573 1
3 SN 1987A SN* 05 35 28.020 -69 16 11.07   4.75 4.81     SNIIpec 4430 2
4 * alf Ori s*r 05 55 10.30536 +07 24 25.4304 4.38 2.27 0.42 -1.17 -2.45 M1-M2Ia-Iab 1456 0
5 2MASS J07371703+6535579 HXB 07 37 17.0439241104 +65 35 57.815731387           SNIIP 232 1
6 SN 2003Z SN* 09 07 32.46 +60 29 17.5     16.7     SNIIP 60 1
7 SN 2012A SN* 10 25 07.39 +17 09 14.6           SNIIP 82 0
8 SN 2008in SN* 12 22 01.77 +04 28 47.5           SNIIP 74 1
9 SN 2016X SN* 12 55 15.50 +00 05 59.7           SNIIP 21 0
10 SN 2005cs SN* 13 29 53.37 +47 10 28.2   14.5       SNIIP 327 1
11 SN 2000cb SN* 16 01 32.15 +01 42 23.0     18.0     SNII 46 1
12 SN 2009kf SN* 16 12 54.00 +55 38 13.8           SNIIP 41 1
13 V* VX Sgr s*r 18 08 04.0431479808 -22 13 26.629744195 11.72 9.41 6.52 3.90 2.11 M8.5Ia 539 0
14 SN 2004et SN* 20 35 25.33 +60 07 17.7   12.88       SNIIP 399 1
15 * mu. Cep s*r 21 43 30.4610574 +58 46 48.160181 8.85 6.43 4.08 1.98 0.22 M2-Ia 619 1

    Equat.    Gal    SGal    Ecl

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2020.03.31-16:50:02

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