Table 1.
Supernova sample for H0 measurement.
| Name | Host galaxy | Nondetection | First detection | zhelioa | zCMB | vpecb | E(B − V) |
|---|---|---|---|---|---|---|---|
| UT | UT | [km/s] | (MW)c | ||||
| Literature | |||||||
| SN 2003bn | 2MASX J10023529-2110531 | Feb. 21.00 | Feb. 22.33 | 0.01277 | 0.01393 | −90 | 0.0562 |
| SN 2006it | NGC 6956 | Sep. 26.19 | Oct. 1.17 | 0.01550 | 0.01449 | −127 | 0.0850 |
| SN 2010id | NGC 7483 | Sep. 11.34 | Sep. 15.24 | 0.01648 | 0.01523 | −180 | 0.0521 |
| SN 2013fs | NGC 7610 | Oct. 5.34 | Oct. 6.25 | 0.01186 | 0.01061 | −68 | 0.0346 |
| ePESSTO+ | |||||||
| SN 2019luo | MCG -01-01-040 | Jul. 13.46 | Jul. 16.48 | 0.04028 | 0.03908 | −144 | 0.0277 |
| SN 2020bad | WISEA J092426.48+203802.9 | Jan. 21.48 | Jan. 23.40 | 0.02711 | 0.02811 | +62 | 0.0376 |
| SN 2020cvy | IC 2217 | Feb. 16.20 | Feb. 19.19 | 0.01734 | 0.01801 | −202 | 0.0350 |
| SN 2021gvv | WISEA J170435.95+140450.4 | Mar. 20.58 | Mar. 22.48 | 0.03789 | 0.03789 d | −134 | 0.0987 |
| SN 2021hkf | CGCG 040-036 | Mar. 25.40 | Mar. 29.26 | 0.01957 | 0.02077 | +256 | 0.0203 |
| SN 2021acvc | WISEA J053038.62-225410.2 | Oct. 26.52 | Oct. 28.52 | 0.03142 | 0.03157 | +178 | 0.0329 |
Notes. aFrom NED with the exception of SN 2021gvv, where we have measured the redshift from narrow host emission lines. For SN 2021hkf, we use a redshift of 0.0208 as measured from narrow lines in the SN spectrum for the heliocentric redshift correction, while the galaxy redshift listed in the table is used in the determination of the Hubble constant. This is necessary because the redshift measured at the SN position deviates significantly from that of the galaxy centre due to the SN being located far from the centre in a rotating spiral galaxy. It is the only case in our sample where such a significant mismatch occurs. bThe peculiar velocities of the SN host galaxies are calculated as described in Sect. 4.5. cMilky Way (MW) colour excess taken from Schlafly & Finkbeiner (2011). dThe sky position of SN 2021gvv is almost exactly orthogonal to the direction of the CMB dipole.
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