SN 2019odp – A massive oxygen-rich Type Ib supernova

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Volume 693 (January 2025)

A&A, 693 (2025) A13

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Table 2.

Basic light curve observables extracted for SN 2019odp and the comparison objects.

Supernova	Band	Δm₋₁₀	Δm₁₅	Linear slope	M_max	Peak Width	Rise timescale
		(mag)	(mag)	(mmag/d)	(mag)	(d)	(d)
SN 2019odp	g	$0 . 81_{- 0.01}^{+ 0.01}$ $0.81_{-0.01 }^{+0.01}$	$0 . 85_{- 0.01}^{+ 0.01}$ $0.85_{-0.01 }^{+0.01}$	$13 . 5_{- 0.3}^{+ 0.3}$ $13.5_{-0.3 }^{+0.3}$	$- 18 . 08_{- 0.10}^{+ 0.08}$ $-18.08_{-0.10 }^{+0.08}$	$16 . 1_{- 0.8}^{+ 0.6}$ $16.1_{-0.8 }^{+0.6}$	$13 . 1_{- 2.6}^{+ 1.9}$ $13.1_{-2.6 }^{+1.9}$
SN 1998bw	V	$0 . 84_{- 0.06}^{+ 0.08}$ $0.84_{-0.06 }^{+0.08}$	$0 . 72_{- 0.03}^{+ 0.03}$ $0.72_{-0.03 }^{+0.03}$	$18 . 6_{- 0.1}^{+ 0.1}$ $18.6_{-0.1 }^{+0.1}$	$- 19 . 37_{- 0.08}^{+ 0.08}$ $-19.37_{-0.08 }^{+0.08}$	$16 . 6_{- 0.5}^{+ 0.4}$ $16.6_{-0.5 }^{+0.4}$	$7 . 1_{- 1.9}^{+ 1.7}$ $7.1_{-1.9 }^{+1.7}$
SN 2002ap	V	< 3.5	$0 . 90_{- 0.03}^{+ 0.03}$ $0.90_{-0.03 }^{+0.03}$	$19 . 2_{- 0.2}^{+ 0.2}$ $19.2_{-0.2 }^{+0.2}$	$- 18 . 05_{- 0.06}^{+ 0.07}$ $-18.05_{-0.06 }^{+0.07}$	$15 . 5_{- 0.8}^{+ 0.6}$ $15.5_{-0.8 }^{+0.6}$	$1 . 7_{- 0.2}^{+ 0.3}$ $1.7_{-0.2 }^{+0.3}$
SN 2008D	V	$0 . 53_{- 0.02}^{+ 0.02}$ $0.53_{-0.02 }^{+0.02}$	$0 . 67_{- 0.02}^{+ 0.02}$ $0.67_{-0.02 }^{+0.02}$	$19 . 1_{- 0.7}^{+ 0.6}$ $19.1_{-0.7 }^{+0.6}$	$- 16 . 93_{- 0.13}^{+ 0.17}$ $-16.93_{-0.13 }^{+0.17}$	$14 . 1_{- 0.7}^{+ 0.7}$ $14.1_{-0.7 }^{+0.7}$	< 16.4
iPTF13bvn	g	$1 . 15_{- 0.03}^{+ 0.03}$ $1.15_{-0.03 }^{+0.03}$	$1 . 34_{- 0.02}^{+ 0.02}$ $1.34_{-0.02 }^{+0.02}$	$19 . 7_{- 0.2}^{+ 0.2}$ $19.7_{-0.2 }^{+0.2}$	$- 16 . 89_{- 0.11}^{+ 0.11}$ $-16.89_{-0.11 }^{+0.11}$	$11 . 0_{- 0.2}^{+ 0.2}$ $11.0_{-0.2 }^{+0.2}$	$4 . 7_{- 0.7}^{+ 1.0}$ $4.7_{-0.7 }^{+1.0}$

SN 2019odp	r	$0 . 42_{- 0.02}^{+ 0.02}$ $0.42_{-0.02 }^{+0.02}$	$0 . 44_{- 0.01}^{+ 0.01}$ $0.44_{-0.01 }^{+0.01}$	$14 . 1_{- 0.1}^{+ 0.1}$ $14.1_{-0.1 }^{+0.1}$	$- 18 . 13_{- 0.09}^{+ 0.10}$ $-18.13_{-0.09 }^{+0.10}$	$21 . 2_{- 0.6}^{+ 0.4}$ $21.2_{-0.6 }^{+0.4}$	$10 . 0_{- 0.6}^{+ 0.7}$ $10.0_{-0.6 }^{+0.7}$
SN 1998bw	Rc	$0 . 72_{- 0.07}^{+ 0.07}$ $0.72_{-0.07 }^{+0.07}$	$0 . 49_{- 0.03}^{+ 0.03}$ $0.49_{-0.03 }^{+0.03}$	$16 . 3_{- 0.1}^{+ 0.1}$ $16.3_{-0.1 }^{+0.1}$	$- 19 . 37_{- 0.07}^{+ 0.08}$ $-19.37_{-0.07 }^{+0.08}$	$22 . 6_{- 1.0}^{+ 1.0}$ $22.6_{-1.0 }^{+1.0}$	$5 . 9_{- 1.3}^{+ 1.4}$ $5.9_{-1.3 }^{+1.4}$
SN 2002ap	R	$0 . 96_{- 0.06}^{+ 0.05}$ $0.96_{-0.06 }^{+0.05}$	$0 . 70_{- 0.01}^{+ 0.01}$ $0.70_{-0.01 }^{+0.01}$	$15 . 7_{- 0.1}^{+ 0.2}$ $15.7_{-0.1 }^{+0.2}$	$- 18 . 10_{- 0.07}^{+ 0.08}$ $-18.10_{-0.07 }^{+0.08}$	$16 . 9_{- 0.8}^{+ 0.7}$ $16.9_{-0.8 }^{+0.7}$	$2 . 8_{- 0.4}^{+ 1.4}$ $2.8_{-0.4 }^{+1.4}$
SN 2008D	r	$0 . 50_{- 0.02}^{+ 0.02}$ $0.50_{-0.02 }^{+0.02}$	$0 . 56_{- 0.01}^{+ 0.01}$ $0.56_{-0.01 }^{+0.01}$	$19 . 8_{- 0.4}^{+ 0.4}$ $19.8_{-0.4 }^{+0.4}$	$- 17 . 02_{- 0.14}^{+ 0.15}$ $-17.02_{-0.14 }^{+0.15}$	$15 . 4_{- 0.8}^{+ 0.7}$ $15.4_{-0.8 }^{+0.7}$	$9 . 3_{- 1.5}^{+ 1.9}$ $9.3_{-1.5 }^{+1.9}$
iPTF13bvn	r	$0 . 69_{- 0.03}^{+ 0.03}$ $0.69_{-0.03 }^{+0.03}$	$0 . 98_{- 0.03}^{+ 0.03}$ $0.98_{-0.03 }^{+0.03}$	$18 . 7_{- 0.2}^{+ 0.2}$ $18.7_{-0.2 }^{+0.2}$	$- 17 . 24_{- 0.11}^{+ 0.12}$ $-17.24_{-0.11 }^{+0.12}$	$11 . 9_{- 0.6}^{+ 0.7}$ $11.9_{-0.6 }^{+0.7}$	$6 . 5_{- 1.9}^{+ 1.9}$ $6.5_{-1.9 }^{+1.9}$

SN 2019odp	i	$0 . 37_{- 0.02}^{+ 0.02}$ $0.37_{-0.02 }^{+0.02}$	$0 . 33_{- 0.02}^{+ 0.02}$ $0.33_{-0.02 }^{+0.02}$	$13 . 8_{- 0.3}^{+ 0.2}$ $13.8_{-0.3 }^{+0.2}$	$- 18 . 00_{- 0.09}^{+ 0.08}$ $-18.00_{-0.09 }^{+0.08}$	$26 . 6_{- 1.2}^{+ 1.1}$ $26.6_{-1.2 }^{+1.1}$	$7 . 7_{- 0.3}^{+ 0.4}$ $7.7_{-0.3 }^{+0.4}$
SN 1998bw	Ic	$0 . 41_{- 0.06}^{+ 0.07}$ $0.41_{-0.06 }^{+0.07}$	$0 . 42_{- 0.05}^{+ 0.05}$ $0.42_{-0.05 }^{+0.05}$	$16 . 9_{- 0.1}^{+ 0.2}$ $16.9_{-0.1 }^{+0.2}$	$- 19 . 34_{- 0.08}^{+ 0.08}$ $-19.34_{-0.08 }^{+0.08}$	$21 . 2_{- 1.7}^{+ 2.0}$ $21.2_{-1.7 }^{+2.0}$	$6 . 1_{- 1.6}^{+ 1.8}$ $6.1_{-1.6 }^{+1.8}$
SN 2002ap	I	$0 . 58_{- 0.05}^{+ 0.05}$ $0.58_{-0.05 }^{+0.05}$	$0 . 45_{- 0.02}^{+ 0.02}$ $0.45_{-0.02 }^{+0.02}$	$18 . 5_{- 0.1}^{+ 0.2}$ $18.5_{-0.1 }^{+0.2}$	$- 17 . 96_{- 0.07}^{+ 0.07}$ $-17.96_{-0.07 }^{+0.07}$	$19 . 2_{- 1.1}^{+ 1.0}$ $19.2_{-1.1 }^{+1.0}$	$3 . 4_{- 0.6}^{+ 1.3}$ $3.4_{-0.6 }^{+1.3}$
SN 2008D	i	$0 . 43_{- 0.02}^{+ 0.02}$ $0.43_{-0.02 }^{+0.02}$	$0 . 41_{- 0.01}^{+ 0.01}$ $0.41_{-0.01 }^{+0.01}$	$20 . 6_{- 0.4}^{+ 0.4}$ $20.6_{-0.4 }^{+0.4}$	$- 17 . 00_{- 0.13}^{+ 0.11}$ $-17.00_{-0.13 }^{+0.11}$	$17 . 6_{- 1.1}^{+ 0.9}$ $17.6_{-1.1 }^{+0.9}$	$7 . 5_{- 0.5}^{+ 0.8}$ $7.5_{-0.5 }^{+0.8}$
iPTF13bvn	i	$0 . 58_{- 0.03}^{+ 0.03}$ $0.58_{-0.03 }^{+0.03}$	$0 . 79_{- 0.03}^{+ 0.03}$ $0.79_{-0.03 }^{+0.03}$	$16 . 7_{- 0.4}^{+ 0.4}$ $16.7_{-0.4 }^{+0.4}$	$- 17 . 10_{- 0.10}^{+ 0.12}$ $-17.10_{-0.10 }^{+0.12}$	$13 . 0_{- 0.9}^{+ 1.0}$ $13.0_{-0.9 }^{+1.0}$	$3 . 6_{- 0.4}^{+ 0.4}$ $3.6_{-0.4 }^{+0.4}$

Notes. Δm₋₁₀ denotes the magnitude difference from the peak to 10 days before the peak. Δm₁₅ denotes the magnitude difference from the peak to 15 days past the peak. The linear slope is the late-time decline slope. M_max denotes the peak absolute magnitude including extinction and distance uncertainties. The peak width denotes the width of the Gaussian around the peak. The rise timescale denotes the timescale factor from the Contardo model (see Appendix B).

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