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

Open Access

Fig. 19.

Model bolometric luminosities for scenarios with ‘No CSM’ and CSM extents of 430, 500 and 600 R_⊙, and K_CSM values of 2, 3, 4, 5 × 10¹⁸ g cm⁻¹ are shown, alongside the observed bolometric luminosity of SN 2018is. The shaded region marks the area below t_PT, after which non-LTE conditions dominate, making SNEC models invalid.

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