Abstract Type Ia supernovae (SNe Ia) play a key role in the fields of astrophysics and
cosmology. It is widely accepted that SNe Ia arise from thermonuclear explosions of white …

The explosive death of a star as a supernova is one of the most dramatic events in the
Universe. Supernovae have an outsized impact on many areas of astrophysics: they are …

Early-time observations of Type Ia supernovae (SNe Ia) are essential to constrain the
properties of their progenitors. In this paper, we present high-quality light curves of 127 SNe …

The modern study of astrophysical transients has been transformed by an exponentially
growing volume of data. Within the last decade, the transient discovery rate has increased …

We present high-cadence optical and ultraviolet light curves of the normal Type Ia
supernova (SN) 2021aefx, which shows an early bump during the first two days of …

Abstract On 2018 February 4.41, the All-Sky Automated Survey for SuperNovae (ASAS-SN)
discovered ASASSN-18bt in the K2 Campaign 16 field. With a redshift of z= 0.01098 and a …

I review new studies of type Ia supernovae (SNe Ia) from 2019, and use these to improve the
comparison between the five binary SN Ia scenarios. New low polarisation measurements …

Type Ia supernovae are thermonuclear explosions of white dwarf stars. They play a central
role in the chemical evolution of the Universe and are an important measure of cosmological …

Early-time radiative signals from Type Ia supernovae (SNe Ia) can provide important
constraints on the explosion mechanism and the progenitor system. We present …

We present a photometric and spectroscopic analysis of the ultraluminous and slowly
evolving 03fg-like Type Ia SN 2021zny. Our observational campaign starts from∼ 5.3 h after …