A low-energy explosion yields the underluminous Type IIP SN 2020cxd

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Table 1.

Properties of the sample of LL SNe IIP.

SN name	t₀⁽¹⁾	z	μ	A_v(MW)	A_v(Host)	Host	M_Ni	Ref
	(MJD)		(mag)	(mag)	(mag)		(M_⊙)
SN 1994N	49451	0.0098	33.09 ± 0.31	0.108	0.000	UGC 5695	0.005 ± 0.001	1, 4
SN 1997D	50361	0.004059	30.74 ± 0.92	0.058	≲0.060	NGC 1536	0.005 ± 0.004	2, 3, 4
SN 1999br	51278	0.00323	30.97 ± 0.83	0.065	0.000	NGC 4900	0.002 ± 0.001	1
SN 1999eu	51394	0.0042	30.85 ± 0.87	0.073	0.000	NGC 1097	0.001 ± 0.001	1, 4
SN 2001dc	52047	0.0071	32.64 ± 0.38	1.654	0.046	NGC 5777	0.005 ± 0.002	1
SN 2002gd	52552	0.00892	32.87 ± 0.35	0.184	0.000	NGC 7537	≲0.003	4
SN 2002gw	52568	0.01028	32.98 ± 0.23	0.051	0.000	NGC 922	0.012 ± 0.004	5, 6, 7
SN 2003B	52645	0.00424	31.11 ± 0.28	0.072	0.180	NGC 1097	0.017 ± 0.009	5, 6, 7
SN 2003fb	52797	0.01754	34.43 ± 0.12	0.482	0.000	UGC 11522	≳0.017	5, 6, 7
SN 2003Z	52665	0.0043	31.70 ± 0.60	0.106	0.000	NGC 2742	0.005 ± 0.003	4
SN 2004eg	53170	0.008051	32.64 ± 0.38	1.237	0.000	UGC 3053	0.007 ± 0.003	4
SN 2004fx	53281	0.00892	32.82 ± 0.24	0.274	0.000	MCG -02-14-003	0.014 ± 0.006	5, 7
SN 2005cs	53549	0.002	29.46 ± 0.60	0.095	0.171	M 51	0.006 ± 0.003	8, 9
SN 2006ov	53974	0.0052	30.5 ± 0.95	0.061	0.000	NGC 4303	0.002 ± 0.002	4
SN 2008bk	54550	0.000767	27.68 ± 0.13	0.065	0.000	NGC 7793	0.007 ± 0.001	10, 11
SN 2008in	54825	0.005224	30.60 ± 0.20	0.305	0.080	NGC 4303	0.012 ± 0.005	12
SN 2009N	54848	0.003456	31.67 ± 0.11	0.350	0.100	NGC 4487	0.020 ± 0.004	13
SN 2009md	55162	0.00427	31.64 ± 0.21	0.310	0.000	NGC 3389	0.004 ± 0.001	14
SN 2010id	55452	0.01648	32.86 ± 0.50	0.162	0.167	NGC 7483	–	15
SN 2013am	56345	0.002692	30.54 ± 0.40	0.066	1.705	NGC 3623	0.015 ± 0.011	16
SN-NGC 6412	57210	0.00438	22.18 ± 1.56	0.115	0.000	NGC 6412	0.002 ± 0.001	17
SN 2016bkv	57477	0.002	30.79 ± 0.05	0.045	≲0.016	NGC 3184	0.0216 ± 0.0014	18
SN 2016aqf	57444	0.004016	30.16 ± 0.27	0.146	≲0.096	NGC 2101	0.008 ± 0.002	19
SN 2018hwm	58425	0.00895	33.58 ± 0.19	0.071	0.000	IC 2327	0.003 ± 0.002	20
SN 2020cxd	58897	0.0039	31.70 ± 0.30	0.115	0.000	NGC 6395	0.002 ± 0.001	21

Notes. The sample was composed by Spiro et al. (2014) and Müller-Bravo et al. (2020), and was extended with 3 recent objects, i.e., SN-NGC 6412, SN 2018hwm and SN 2020cxd.

⁽¹⁾

t₀ is the estimated explosion time, which was used to shift the abscissa in Fig. 5.

References. (1) Pastorello et al. (2004); (2) Turatto et al. (1998); (3) Benetti et al. (2001); (4) Spiro et al. (2014); (5) Anderson et al. (2014); (6) Galbany et al. (2016); (7) Gutiérrez et al. (2017); (8) Pastorello et al. (2006); (9) Pastorello et al. (2009); (10) Mattila et al. (2008); (11) Van Dyk et al. (2012); (12) Roy et al. (2011); (13) Takáts et al. (2014); (14) Fraser et al. (2011); (15) Gal-Yam et al. (2011); (16) Zhang et al. (2014); (17) Jäger et al. (20200; (18) Nakaoka et al. (2018); (19) Müller-Bravo et al. (2020); (20) Reguitti et al. (2021); (21) this paper.

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