101 citations · 136 across the 3 of their papers we have counts for
6 papers
The origins of low-luminosity supernovae: the case of SN 2016bkv
Maxime Deckers, Jose H. Groh, Ioana Boian +1
We investigate the low-luminosity supernova SN 2016bkv and its peculiar early-time interaction. For that, we compute radiative transfer models using the CMFGEN code. Because SN 201…
SN 2018gjx reveals that some SNe Ibn are SNe IIb exploding in dense circumstellar material
S. J. Prentice, K. Maguire, I. Boian +27
We present the data and analysis of SN 2018gjx, an unusual low-luminosity transient with three distinct spectroscopic phases. Phase I shows a hot blue spectrum with signatures of i…
The possible disappearance of a massive star in the low metallicity galaxy PHL 293B
Andrew Allan, Jose Groh, Andrea Mehner +4
We investigate a suspected very massive star in one of the most metal-poor dwarf galaxies, PHL~293B. Excitingly, we find the sudden disappearance of the stellar signatures from our…
Progenitors of early-time interacting supernovae
Ioana Boian, Jose H. Groh
We compute an extensive set of early-time spectra of supernovae interacting with circumstellar material using the radiative transfer code CMFGEN. Our models are applicable to event…
Grids of stellar models with rotation IV. Models from 1.7 to 120 Msun at a metallicity Z = 0.0004
Jose H. Groh, Sylvia Ekström, Cyril Georgy +8
The effects of rotation on stellar evolution are particularly important at low metallicity, when mass loss by stellar winds diminishes and the surface enrichment due to rotational…
The diversity of supernovae and impostors shortly after explosion
I. Boian, J. H. Groh
Observational surveys are now able to detect an increasing number of transients, such as core-collapse supernovae (SN) and powerful non-terminal outbursts (SN impostors). Dedicated…