SN 2017ati: A luminous type IIb explosion from a massive progenitor

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Table B.2.

Parameters for the comparison sample of SNe IIb.

SN IIb	Explosion Date	Redshift	Distance	E(B − V)_Gal	E(B − V)_Host	$M_{r / R}^{peak} a$ $Mathematical equation: $ M^{peak}_{r/R}^a $$	L_peak^a	References
	[MJD]	z	[Mpc]	[mag]	[mag]	[mag]	[erg s⁻¹]
1993J	49072.0	-0.000113	2.9	0.069	0.11	−17.73 ± 0.33	1.43 × 10⁴²	1
2008ax	54528.8	0.00456	9.6±1.3	0.022	0.278	−17.28 ± 0.46	1.30 × 10⁴²	2
2011dh	55712.5	0.001638	8.03±0.77	0.03	0.04	−17.50 ± 0.22	8.93 × 10⁴¹	3
2011fu	55824.5	0.001845	74.5±5.2	0.068	0.035	−17.89 ± 0.12	1.89 × 10⁴²	4
2013df	56449.5	0.00239	21.38 ± 2.95	0.017	0.081	−17.00 ± 0.08	7.51 × 10⁴¹	5
2015as	57332.0	0.0036	19.2±1.4	0.008	0	∼ − 17.28	8.49 × 10⁴¹	6
2016gkg	57651.2	0.0049	21.8	0.0166	0.09	∼ − 17.53	1.05 × 10⁴²	7
2017ckj	57836.6	0.037	158.1±11.1	0.013	0	−18.46 ± 0.07	6.59 × 10⁴²	8
2018gk	58130.1	0.031010	140.5±2.3	0.0086	0	−19.64 ± 0.24	1.43 × 10⁴³	9
2020acat	59192.0	0.007932	35.3±4.4	0.0207	0	−16.55 ± 0.35	1.48 × 10⁴²	10
2021bxu	59246.3	0.0178	72±5	0.014	0	∼15.93	3.79 × 10⁴¹	11
2022ngb	59749.9	0.00965	32.2±2.8	0.085	0.085	−16.55 ± 0.35	7.85 × 10⁴¹	12
2024abfo	60628.3	0.003512	10.85±0.53	0.0097	0	−16.50 ± 0.10	7.23 × 10⁴¹	13
2017ati	57784.5	0.01696	70.80±5.20	0.104	0	−18.48 ± 0.16	3.00 × 10⁴²	14

^a Peak magnitudes and luminosities refer to the maximum. References: 1= Richmond et al. (1994), Barbon et al. (1995), Richmond et al. (1996), 2= Pastorello et al. (2008), Tsvetkov et al. (2009), Taubenberger et al. (2011), 3= Tsvetkov et al. (2012), Sahu et al. (2013), Ergon et al. (2014), 4= Morales-Garoffolo et al. (2015), 5=Morales-Garoffolo et al. (2014), 6=Gangopadhyay et al. (2018), 7= Arcavi et al. (2017), Bersten et al. (2018), 8=Li et al. (2025a), 9= Bose et al. (2021), 10= Medler et al. (2022), 11= Desai et al. (2023), 12=Zhao et al. (2026), 13=Reguitti et al. (2025), 14=This Work.

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