SN 2018is: A low-luminosity Type IIP supernova with narrow hydrogen emission lines at early phases

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Table 1.

Basic information of SN 2018is.

Host Galaxy	NGC 5054
RA	13^h16^m57 $\overset{s}{.}$ ${{{\overset{\text{ s}}{.}}}}$ 35
Dec	−16^d37^m04 $\overset{s}{.}$ ${{{\overset{\text{ s}}{.}}}}$ 43
Discovery	JD 2458136.2
Explosion epoch ⁽¹⁾	JD 2458133.4 ± 1.1
Redshift ⁽²⁾	0.005811
Helio. radial velocity ⁽³⁾	1734 ± 2 km s⁻¹
(corrected for LG infall onto Virgo)
E(B−V)_MW⁽¹⁾	0.0708 ± 0.0003 mag
E(B−V)_host⁽¹,^a) (Colour method)	0.12 ± 0.06 mag
E(B−V)_host⁽¹,^b) (NaID)	0.36 ± 0.07 mag
Distance ⁽¹⁾	21.3 ± 1.7 Mpc

Notes.

⁽¹⁾

This work.

⁽²⁾

Pisano et al. (2011), from NED.

⁽³⁾

From HyperLEDA.

^(a)

Low reddening estimate.

^(b)

High reddening estimate.

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