2023MNRAS.519..248A

Query : 2023MNRAS.519..248A

2023MNRAS.519..248A - Mon. Not. R. Astron. Soc., 519, 248-270 (2023/February-2)

Photometric and spectroscopic analysis of the Type II SN 2020jfo with a short plateau.

AILAWADHI B., DASTIDAR R., MISRA K., ROY R., HIRAMATSU D., HOWELL D.A., BRINK T.G., ZHENG W., GALBANY L., SHAHBANDEH M., ARCAVI I., ASHALL C., BOSTROEM K.A., BURKE J., CHAPMAN T., DIMPLE, FILIPPENKO A.V., GANGOPADHYAY A., GHOSH A., HOFFMAN A.M., HOSSEINZADEH G., JENNINGS C., JHA V.K., KUMAR A., KARAMEHMETOGLU E., McCULLY C., McGINNESS E., MULLER-BRAVO T.E., MURAKAMI Y.S., PANDEY S.B., PELLEGRINO C., PISCARRETA L., RHO J., STRITZINGER M., SUNSERI J., VAN DYK S.D. and YADAV L.

Abstract (from CDS):

We present high-cadence photometric and spectroscopic observations of SN 2020jfo in ultraviolet and optical/near-infrared bands starting from ∼3 to ∼434 d after the explosion, including the earliest data with the 10.4-m GTC. SN 2020jfo is a hydrogen-rich Type II SN with a relatively short plateau duration (67.0 ± 0.6 d). When compared to other Type II supernovae (SNe) of similar or shorter plateau lengths, SN 2020jfo exhibits a fainter peak absolute V-band magnitude (MV = -16.90 ± 0.34 mag). SN 2020jfo shows significant Hα absorption in the plateau phase similar to that of typical SNe II. The emission line of stable [Ni II] λ7378, mostly seen in low-luminosity SNe II, is very prominent in the nebular-phase spectra of SN 2020jfo. Using the relative strengths of [Ni II] λ7378 and [Fe II] λ7155, we derive the Ni/Fe production (abundance) ratio of 0.08-0.10, which is ∼1.5 times the solar value. The progenitor mass of SN 2020jfo from nebular-phase spectral modelling and semi-analytical modelling falls in the range of 12-15 M⊙. Furthermore, semi-analytical modelling suggests a massive H envelope in the progenitor of SN 2020jfo, which is unlikely for SNe II having short plateaus.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): techniques: photometric - techniques: spectroscopic - galaxies: individual: M61 - supernovae: general - supernovae: individual: SN 2020jfo

Simbad objects: 46

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Number of rows : 46
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 ASASSN -16hn SN* 00 04 03.854 -34 48 51.87           SNII 21 0
2 SN 1992am SN* 01 25 02.76 -04 39 00.9   18.5 18.5     SNIIP 59 1
3 SN 2013ej SN* 01 36 48.16 +15 45 31.0           SNIIP 248 0
4 SN 2003hd SN* 01 49 46.31 -21 54 37.8     17.4     SNII 26 1
5 SN 2004er SN* 02 36 59.04 -05 21 19.7     17.0     SNII 40 1
6 SN 2012ec SN* 02 45 59.89 -07 34 25.0         22.32 SNIIP 92 3
7 SN 2009bw SN* 03 56 06.92 +72 55 40.9           SNII 70 1
8 SN 1997D SN* 04 11 01.00 -56 29 56.0       16.3   SNIIpec 184 1
9 SN 1986L SN* 04 17 29.4 -62 47 04     13.3     SNIIP 58 1
10 SN 2009ib SN* 04 17 40.09 -62 46 40.3           SNIIP 70 1
11 SN 1999em SN* 04 41 27.04 -02 51 45.2   13.79 13.7     SNIIP 727 1
12 NGC 1637 Sy2 04 41 28.1926876152 -02 51 28.667815488   11.4   11.0 11.3 ~ 444 0
13 SN 2004fx SN* 05 11 11.67 -09 23 31.6     16.9     SNII 35 1
14 ASASSN -16cc SN* 05 46 23.907 -52 05 18.86           SNII 24 0
15 SN 1995ad SN* 06 01 06.13 -23 40 29.0       15.7   SNII 59 1
16 NGC 2139 EmG 06 01 07.963 -23 40 20.35   12.10 11.71 11.28 12.1 ~ 164 1
17 SN 2018zd SN* 06 18 03.180 +78 22 00.90           SNII 74 0
18 SN 2008M SN* 06 21 41.28 -59 43 45.4     15.5     SNIIP 39 1
19 SN 2006Y SN* 07 13 17.19 -51 41 18.8     17.7     SNII 45 1
20 SN 2006ai SN* 07 29 52.16 -84 02 20.5     16.2     SNII 41 1
21 ESO 5-9 G 07 29 55.3 -84 02 25   15.52   14.63   ~ 18 0
22 SN 2003T SN* 09 14 11.06 +16 44 48.0     18.1     SNII 38 1
23 SN 2008if SN* 09 20 23.47 -07 52 33.1           SNII 28 1
24 SN 2008bp SN* 10 00 01.57 -31 33 21.8           SNIIP 27 1
25 SN 2012aw SN* 10 43 53.735 +11 40 17.63       15   SNIIP 252 1
26 SN 2014G SN* 10 54 34.13 +54 17 56.9           SNIIL 95 1
27 SN 2006bp SN* 11 53 55.74 +52 21 09.4 14.5 15.8 14.7     SNIIP 191 1
28 SN 2020jfo SN* 12 21 50.480 +04 28 54.05           SNII 48 0
29 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 1084 1
30 SN 2008in SN* 12 22 01.77 +04 28 47.5           SNIIP 117 1
31 SN 1979C SN* 12 22 58.58 +15 47 52.7   11.6       SNIIL 609 1
32 SN 2016X SN* 12 55 15.50 +00 05 59.7           SNIIb 61 0
33 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
34 SN 2005cs SN* 13 29 53.37 +47 10 28.2   14.5       SNIIP 450 1
35 SN 2003cx SN* 13 57 06.46 -17 02 22.6     19.1     SNII 17 1
36 IC 1029 GiG 14 32 27.2636383008 +49 54 16.664370732   13.7 12.65     ~ 105 1
37 SN 2015ba SN* 14 32 29.19 +49 53 34.5           SNII 20 1
38 SN 2013ab SN* 14 32 44.49 +09 53 12.3           SNIIP 71 1
39 SN 2008bu SN* 16 47 23.05 -20 08 48.2           SNII 27 1
40 SN 2007ab SN* 16 51 29.13 -03 05 33.6     17.8     SNII 22 1
41 SN 2013by SN* 16 59 02.43 -60 11 41.8           SNII 83 1
42 SN 1992af SN* 20 30 40.25 -42 18 35.2   17.5 17.5     SNIIP 32 1
43 SN 2004dy SN* 21 11 30.13 -02 02 13.3     19.4     SNII 22 1
44 SN 2013fs SN* 23 19 44.70 +10 11 05.0           SNIIP 159 1
45 MCG+03-01-002 AG? 23 55 46.025 +18 25 33.60   17       ~ 65 0
46 SN 2007od SN* 23 55 48.68 +18 24 54.8       14.4   SNIIP 147 1

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