SN 2016iog: A fast-declining Type II-L supernova with an ultra-faint tail persistently interacting with circumstellar material

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Table 2.

Parameters for the comparison sample of SNe II.

SN	s₁ (mag/100d)	s₂ (mag/100d)	s₃ (mag/100d)	$M_{V}^{50 d}$ $M^{50d}_{V}$ (mag)	M_V^peak(mag)	L_peak (erg s⁻¹)	M_Ni(M_⊙)	References
1979C	–	3.55 ± 0.08	–	−18.31 ± 0.11	≤ − 19.85	≥9.75 ×10⁴²	–	1
1980K	4.22 ± 0.10	3.44 ± 0.39	1.17 ± 0.17	−17.30 ± 0.50	≤ − 18.58	−	−	2
1998S	3.67 ± 0.06	3.57 ± 0.36	–	−18.49 ± 0.16	−19.66 ± 0.05	1.50 ×10⁴³	0.067 ± 0.034	3
1999em	0.86 ± 0.11	0.30 ± 0.02	0.88 ± 0.05	−16.48 ± 0.52	−16.76 ± 0.07	1.23 ×10⁴²	$0 . 042_{- 0.019}^{+ 0.027}$ $0.042^{+0.027}_{-0.019}$	4
2009kr	–	2.58 ± 0.08	–	−15.74 ± 0.08	−16.82 ± 0.30	8.30 ×10⁴¹	0.009 ± 0.004	5
PTF11iqb^a	1.61 ± 0.10	0.83 ± 0.17	–	−17.73 ± 0.04	−18.32 ± 0.01	–	–	6
2013by	3.43 ± 0.02	1.98 ± 0.04	1.20 ± 0.06	−17.40 ± 0.44	−18.05 ± 0.15	2.50 ×10⁴²	0.033 ± 0.012	7
2013ej	3.64 ± 0.26	2.04 ± 0.02	1.65 ± 0.08	−16.79 ± 0.16	−17.80 ± 0.13	2.89 ×10⁴²	0.020 ± 0.002	8
2014G	–	2.87 ± 0.05	1.68 ± 0.18	−17.18 ± 0.47	−18.05 ± 0.84	4.14 ×10⁴²	0.073 ± 0.013	9
ASASSN-15nx	2.32 ± 0.03	2.32 ± 0.03	–	−19.13 ± 0.05	−19.92 ± 0.06	1.34 ×10⁴³	1.3 ± 0.2	10
2017ahn	–	4.02 ± 0.09	1.90 ± 0.07	−16.75 ± 0.46	−18.40 ± 0.50	5.56 ×10⁴²	0.051 ± 0.016	11
2019nyk	–	2.84 ± 0.03	1.20 ± 0.20	−16.95 ± 0.17	−18.09 ± 0.17	3.61 ×10⁴²	0.050 ± 0.010	12
2022lxg^a	6.53 ± 0.07	6.53 ± 0.07	–	−17.10 ± 0.02	−19.31 ± 0.02	6.40 ×10⁴³	≥0.003 ± 0.002	13

2016iog	8.85 ± 0.15	8.85 ± 0.15	–	−15.54 ± 0.21	−18.64 ± 0.15	6.31 ×10⁴²	0.014 ± 0.007	14

Notes. ^aThe data for PTF11iqb and SN 2022lxg is obtained using the r-band as a substitute. References: 1 = Fesen et al. (1999), 2 = Fesen et al. (1999), Zsíros et al. (2024), 3 = Fassia et al. (2001), 4 = Elmhamdi et al. (2003), Leonard et al. (2002), 5 = Elias-Rosa et al. (2010), 6 = Smith et al. (2015), 7= Valenti et al. (2015), 8 = Huang et al. (2015), 9 = Terreran et al. (2016), Bose et al. (2016), 10 = Bose et al. (2018), 11 = Tartaglia et al. (2021), 12 = Dastidar et al. (2024), 13 = Charalampopoulos et al. (2025), 14 = This work.

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