2024MNRAS.527.6473F

Query : 2024MNRAS.527.6473F

2024MNRAS.527.6473F - Mon. Not. R. Astron. Soc., 527, 6473-6494 (2024/January-3)

Detailed spectrophotometric analysis of the superluminous and fast evolving SN 2019neq.

FIORE A., BENETTI S., TARTAGLIA L., JERKSTRAND A., SALMASO I., TOMASELLA L., MORALES-GAROFFOLO A., GEIER S., ELIAS-ROSA N., CAPPELLARO E., WANG X., MO J., CHEN Z., YAN S., PASTORELLO A., MAZZALI P.A., CIOLFI R., CAI Y., FRASER M., GUTIERREZ C.P., KARAMEHMETOGLU E., KUNCARAYAKTI H., MORAN S., OCHNER P., REGUITTI A., REYNOLDS T.M. and VALERIN G.

Abstract (from CDS):

SN 2019neq was a very fast evolving superluminous supernova. At a redshift z = 0.1059, its peak absolute magnitude was -21.5 ± 0.2 mag in g band. In this work, we present data and analysis from an extensive spectrophotometric follow-up campaign using multiple observational facilities. Thanks to a nebular spectrum of SN 2019neq, we investigated some of the properties of the host galaxy at the location of SN 2019neq and found that its metallicity and specific star formation rate are in a good agreement with those usually measured for SLSNe-I hosts. We then discuss the plausibility of the magnetar and the circumstellar interaction scenarios to explain the observed light curves, and interpret a nebular spectrum of SN 2019neq using published SUMO radiative-transfer models. The results of our analysis suggest that the spin-down radiation of a millisecond magnetar with a magnetic field $B\simeq 6\times 10^{14}\, \mathrm{G}$ could boost the luminosity of SN 2019neq.

Abstract Copyright: © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): supernovae: general - supernovae: individual: SN 2019neq

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

Simbad objects: 37

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Number of rows : 37
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 2019lsq SN* 00 04 40.600 +42 52 11.35           SLSN-I 12 0
2 SN 2019nhs SN* 00 52 01.453 +07 36 59.80           SLSN-I 10 0
3 SN 2011kg SN* 01 39 45.51 +29 55 27.0           SLSN-I 73 1
4 LSQ 12dlf SN* 01 50 29.80 -21 48 45.4           SLSN-I 57 0
5 SN 2006gy SN* 03 17 27.06 +41 24 19.5       14.20   SNIIn 372 1
6 SN 2018hti SN* 03 40 53.754 +11 46 37.29           SLSN-I 30 0
7 AT 2020wnt SN? 03 46 37.950 +43 13 45.25           SNI 19 0
8 SN 2017gci SN* 06 46 45.02 -27 14 55.8           SLSN-I 23 0
9 iPTF 13ehe SN* 06 53 21.50 +67 07 56.0           SLSN-I 76 0
10 SN 2019stc SN* 06 54 23.103 +17 29 31.35           SNIc 28 0
11 SN 2016wi SN* 07 58 50.67 +66 07 39.1           SLSN-I 45 0
12 SN 2020ank SN* 08 16 14.653 +04 19 26.88           ~ 15 0
13 SN 2019cdt SN* 08 17 53.930 +65 28 46.52           SLSN-I 9 0
14 SN 2019ujb SN* 09 03 15.170 +40 14 32.50           SLSN-I 12 0
15 SN 2019unb SN* 09 47 57.02 +00 49 36.0           SLSN-I 16 0
16 SN 2019zbv SN* 10 15 01.124 +43 24 53.68           SLSN-I 10 0
17 PS1-11ap SN* 10 48 27.73 +57 09 09.2           SLSN-I 57 0
18 SN 2010gx SN* 11 25 46.71 -08 49 41.4           SLSN-I 165 1
19 SN 2015bn SN* 11 33 41.57 +00 43 32.2           SLSN-I 157 0
20 SN 2016eay SN* 12 02 51.71 +44 15 27.4           SLSN-I 83 0
21 SN 2018kyt SN* 12 27 56.23 +56 23 35.6           SLSN-I 14 0
22 SN 2006tf SN* 12 46 15.81 +11 25 55.4     16.7     SNIIn 112 1
23 SN 2011ke SN* 13 50 57.77 +26 16 42.8     18.6     SLSN-I 92 1
24 SN 2020fvm SN* 14 12 45.972 +34 44 16.24           ~ 5 0
25 PTF 12dam SN* 14 24 46.20 +46 13 48.3           SLSN-I 172 0
26 SN 2019aamp SN* 14 37 49.270 +20 18 16.60           SLSN-I 5 0
27 SN 2020exj SN* 14 42 40.012 +30 14 39.20           SLSN-I 9 0
28 SN 2020auv SN* 16 34 12.532 +37 05 51.78           SLSN-I 8 0
29 SN 2020htd SN* 17 44 17.271 +38 55 30.76           ~ 5 0
30 SDSS J175426.70+471542.3 G 17 54 26.70712 +47 15 42.3305           ~ 1 0
31 SN 2019neq SN* 17 54 26.736 +47 15 40.56           SLSN-I 20 0
32 SN 2019eot SN* 18 00 29.941 +50 17 43.30           SLSN-I 9 0
33 SN 2018bym SN* 18 43 13.429 +45 12 28.21           SLSN-I 18 0
34 SN 2019kwt SN* 19 39 22.590 +78 45 43.60           SLSN-I 8 0
35 SN 2018fcg SN* 21 09 36.78 +33 28 59.6           SLSN-I 16 0
36 SN 2007ru SN* 23 07 23.19 +43 35 34.1     17.5     SNIc-BL 62 1
37 SN 2003jd SN* 23 21 03.38 -04 53 45.5   16.34       SNIc-BL 147 1

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