Sample of nebular phase CC-SNe used for comparison in this study. All spectra were obtained from WiseRep (Yaron & Gal-Yam 2012).
| SN name . | Type . | Host . | cz . | Distance(1) . | E(B − V) . | Reference(s) . |
|---|---|---|---|---|---|---|
| . | . | galaxy . | (km s|$^{-1}$|) . | (Mpc) . | . | . |
| 2023ixf | II-P | M101 | 241 |$\pm$| 2 | 6.85 |$\pm$|0.15 | 0.039 | (2) |
| 2020jfo | II-P | NGC 4303 | 1556 |$\pm$| 2 | 14.623 |$\pm$| 1.957 | 0.020 | (3) (4) |
| 2018zd | II-Pa | NGC 2146 | 892 |$\pm$| 4 | 9.6 |$\pm$| 1.0 | 0.08 | (5), (6) |
| 2013ej | II-P | NGC 628 | 657 |$\pm$| 1 | 9.7 |$\pm$| 0.5 | 0.06 | (7) |
| 2012aw | II-P | M95 | |$778\pm 2$| | |$9.9\pm 0.1$| | 0.074 | (8) |
| 2004et | II-P | NGC 6946 | 48 |$\pm$| 2 | 5.7 |$\pm$| 0.3 | 0.41 | (9), (10), (11) |
| 1999em | II-P | NGC 1637 | 670 |$\pm$| 3 | 9.77 |$\pm$| 1.82 | 0.04 | (12), (13) |
| 1987A | II-P | LMC | 278 |$\pm$| 2 | 0.05 | 0.055 | (14), (15) |
| 2013by | II-P/L | ESO 138-G10 | 1144 |$\pm$|2 | |$\sim$|14.8 | 0.195 | (16), (17) |
| 2011dh | II-b | M51 | 393 | 8.05 |$\pm$| 0.35 | 0.3 | (18), (19) |
| 2008ax | II-b | NGC 4490 | 565 |$\pm$| 3 | 5.979 |$\pm$| 0.379 | 0.022 | (20), (21) |
| 1993J | II-b | NGC 3031 | –39 |$\pm$| 3 | 3.675 |$\pm$| 0.049 | 0.3 | (22), (23) |
| 2017ivv | II-L | (24) | 1680 |$\pm$| 200 | 24.09 |$\pm$| 2.90 | 0.05 | (25) |
| 2014G | II-L | NGC 3448 | 1528 |$\pm$| 13 | 22.53 |$\pm$| 1.59 | 0.21 | (26) |
| 1979C | II-L | M100 | |$1571 \pm 1$| | |$16.117 \pm 0.365$| | 0.072 | (27) |
| SN name . | Type . | Host . | cz . | Distance(1) . | E(B − V) . | Reference(s) . |
|---|---|---|---|---|---|---|
| . | . | galaxy . | (km s|$^{-1}$|) . | (Mpc) . | . | . |
| 2023ixf | II-P | M101 | 241 |$\pm$| 2 | 6.85 |$\pm$|0.15 | 0.039 | (2) |
| 2020jfo | II-P | NGC 4303 | 1556 |$\pm$| 2 | 14.623 |$\pm$| 1.957 | 0.020 | (3) (4) |
| 2018zd | II-Pa | NGC 2146 | 892 |$\pm$| 4 | 9.6 |$\pm$| 1.0 | 0.08 | (5), (6) |
| 2013ej | II-P | NGC 628 | 657 |$\pm$| 1 | 9.7 |$\pm$| 0.5 | 0.06 | (7) |
| 2012aw | II-P | M95 | |$778\pm 2$| | |$9.9\pm 0.1$| | 0.074 | (8) |
| 2004et | II-P | NGC 6946 | 48 |$\pm$| 2 | 5.7 |$\pm$| 0.3 | 0.41 | (9), (10), (11) |
| 1999em | II-P | NGC 1637 | 670 |$\pm$| 3 | 9.77 |$\pm$| 1.82 | 0.04 | (12), (13) |
| 1987A | II-P | LMC | 278 |$\pm$| 2 | 0.05 | 0.055 | (14), (15) |
| 2013by | II-P/L | ESO 138-G10 | 1144 |$\pm$|2 | |$\sim$|14.8 | 0.195 | (16), (17) |
| 2011dh | II-b | M51 | 393 | 8.05 |$\pm$| 0.35 | 0.3 | (18), (19) |
| 2008ax | II-b | NGC 4490 | 565 |$\pm$| 3 | 5.979 |$\pm$| 0.379 | 0.022 | (20), (21) |
| 1993J | II-b | NGC 3031 | –39 |$\pm$| 3 | 3.675 |$\pm$| 0.049 | 0.3 | (22), (23) |
| 2017ivv | II-L | (24) | 1680 |$\pm$| 200 | 24.09 |$\pm$| 2.90 | 0.05 | (25) |
| 2014G | II-L | NGC 3448 | 1528 |$\pm$| 13 | 22.53 |$\pm$| 1.59 | 0.21 | (26) |
| 1979C | II-L | M100 | |$1571 \pm 1$| | |$16.117 \pm 0.365$| | 0.072 | (27) |
Notes. (1) Taken from NASA/IPAC Extragalactic Database (Helou 1991) mean distance or referenced study (2) Riess et al. (2022) (3) Sollerman et al. (2021) (4) Kawabata et al. (2018) (5) Hiramatsu et al. (2021) (6) Zhang et al. (2020) (7) Yuan et al. (2016) (8) Bose et al. (2013) (9) Sahu et al. (2006) (10) Faran et al. (2014a) (11) Maguire et al. (2010) (12) Elmhamdi et al. (2003) (13) Schlegel, Finkbeiner & Davis (1998) (14) Pun et al. (1995) (15) Galbany et al. (2016) (16) Valenti et al. (2015) (17) Black et al. (2017) (18) Shivvers et al. (2013) (19) Marion et al. (2014) (20) Milisavljevic et al. (2010) (21) Taubenberger et al. (2011) (22) Barbon et al. (1995) (23) Matheson et al. (2000) (24) GALEXASC J202849.46-042255.5 (25) Gutiérrez et al. (2020) (26) Terreran et al. (2016) (27) de Vaucouleurs et al. (1981).
Formally recognized as a hydrogen-rich electron-capture SN (5) which showed nebular spectroscopic features of a normal II-P SN.
Sample of nebular phase CC-SNe used for comparison in this study. All spectra were obtained from WiseRep (Yaron & Gal-Yam 2012).
| SN name . | Type . | Host . | cz . | Distance(1) . | E(B − V) . | Reference(s) . |
|---|---|---|---|---|---|---|
| . | . | galaxy . | (km s|$^{-1}$|) . | (Mpc) . | . | . |
| 2023ixf | II-P | M101 | 241 |$\pm$| 2 | 6.85 |$\pm$|0.15 | 0.039 | (2) |
| 2020jfo | II-P | NGC 4303 | 1556 |$\pm$| 2 | 14.623 |$\pm$| 1.957 | 0.020 | (3) (4) |
| 2018zd | II-Pa | NGC 2146 | 892 |$\pm$| 4 | 9.6 |$\pm$| 1.0 | 0.08 | (5), (6) |
| 2013ej | II-P | NGC 628 | 657 |$\pm$| 1 | 9.7 |$\pm$| 0.5 | 0.06 | (7) |
| 2012aw | II-P | M95 | |$778\pm 2$| | |$9.9\pm 0.1$| | 0.074 | (8) |
| 2004et | II-P | NGC 6946 | 48 |$\pm$| 2 | 5.7 |$\pm$| 0.3 | 0.41 | (9), (10), (11) |
| 1999em | II-P | NGC 1637 | 670 |$\pm$| 3 | 9.77 |$\pm$| 1.82 | 0.04 | (12), (13) |
| 1987A | II-P | LMC | 278 |$\pm$| 2 | 0.05 | 0.055 | (14), (15) |
| 2013by | II-P/L | ESO 138-G10 | 1144 |$\pm$|2 | |$\sim$|14.8 | 0.195 | (16), (17) |
| 2011dh | II-b | M51 | 393 | 8.05 |$\pm$| 0.35 | 0.3 | (18), (19) |
| 2008ax | II-b | NGC 4490 | 565 |$\pm$| 3 | 5.979 |$\pm$| 0.379 | 0.022 | (20), (21) |
| 1993J | II-b | NGC 3031 | –39 |$\pm$| 3 | 3.675 |$\pm$| 0.049 | 0.3 | (22), (23) |
| 2017ivv | II-L | (24) | 1680 |$\pm$| 200 | 24.09 |$\pm$| 2.90 | 0.05 | (25) |
| 2014G | II-L | NGC 3448 | 1528 |$\pm$| 13 | 22.53 |$\pm$| 1.59 | 0.21 | (26) |
| 1979C | II-L | M100 | |$1571 \pm 1$| | |$16.117 \pm 0.365$| | 0.072 | (27) |
| SN name . | Type . | Host . | cz . | Distance(1) . | E(B − V) . | Reference(s) . |
|---|---|---|---|---|---|---|
| . | . | galaxy . | (km s|$^{-1}$|) . | (Mpc) . | . | . |
| 2023ixf | II-P | M101 | 241 |$\pm$| 2 | 6.85 |$\pm$|0.15 | 0.039 | (2) |
| 2020jfo | II-P | NGC 4303 | 1556 |$\pm$| 2 | 14.623 |$\pm$| 1.957 | 0.020 | (3) (4) |
| 2018zd | II-Pa | NGC 2146 | 892 |$\pm$| 4 | 9.6 |$\pm$| 1.0 | 0.08 | (5), (6) |
| 2013ej | II-P | NGC 628 | 657 |$\pm$| 1 | 9.7 |$\pm$| 0.5 | 0.06 | (7) |
| 2012aw | II-P | M95 | |$778\pm 2$| | |$9.9\pm 0.1$| | 0.074 | (8) |
| 2004et | II-P | NGC 6946 | 48 |$\pm$| 2 | 5.7 |$\pm$| 0.3 | 0.41 | (9), (10), (11) |
| 1999em | II-P | NGC 1637 | 670 |$\pm$| 3 | 9.77 |$\pm$| 1.82 | 0.04 | (12), (13) |
| 1987A | II-P | LMC | 278 |$\pm$| 2 | 0.05 | 0.055 | (14), (15) |
| 2013by | II-P/L | ESO 138-G10 | 1144 |$\pm$|2 | |$\sim$|14.8 | 0.195 | (16), (17) |
| 2011dh | II-b | M51 | 393 | 8.05 |$\pm$| 0.35 | 0.3 | (18), (19) |
| 2008ax | II-b | NGC 4490 | 565 |$\pm$| 3 | 5.979 |$\pm$| 0.379 | 0.022 | (20), (21) |
| 1993J | II-b | NGC 3031 | –39 |$\pm$| 3 | 3.675 |$\pm$| 0.049 | 0.3 | (22), (23) |
| 2017ivv | II-L | (24) | 1680 |$\pm$| 200 | 24.09 |$\pm$| 2.90 | 0.05 | (25) |
| 2014G | II-L | NGC 3448 | 1528 |$\pm$| 13 | 22.53 |$\pm$| 1.59 | 0.21 | (26) |
| 1979C | II-L | M100 | |$1571 \pm 1$| | |$16.117 \pm 0.365$| | 0.072 | (27) |
Notes. (1) Taken from NASA/IPAC Extragalactic Database (Helou 1991) mean distance or referenced study (2) Riess et al. (2022) (3) Sollerman et al. (2021) (4) Kawabata et al. (2018) (5) Hiramatsu et al. (2021) (6) Zhang et al. (2020) (7) Yuan et al. (2016) (8) Bose et al. (2013) (9) Sahu et al. (2006) (10) Faran et al. (2014a) (11) Maguire et al. (2010) (12) Elmhamdi et al. (2003) (13) Schlegel, Finkbeiner & Davis (1998) (14) Pun et al. (1995) (15) Galbany et al. (2016) (16) Valenti et al. (2015) (17) Black et al. (2017) (18) Shivvers et al. (2013) (19) Marion et al. (2014) (20) Milisavljevic et al. (2010) (21) Taubenberger et al. (2011) (22) Barbon et al. (1995) (23) Matheson et al. (2000) (24) GALEXASC J202849.46-042255.5 (25) Gutiérrez et al. (2020) (26) Terreran et al. (2016) (27) de Vaucouleurs et al. (1981).
Formally recognized as a hydrogen-rich electron-capture SN (5) which showed nebular spectroscopic features of a normal II-P SN.
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