activity
20152023
most citedThe Dependence of Subhalo Abundance on Halo Concentration

111 citations · 442 across the 17 of their papers we have counts for

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Showing 2022Show all

5 papers · 1 filter

astro-ph.HE2022★ 12 cited

SN 2019ewu: A Peculiar Supernova with Early Strong Carbon and Weak Oxygen Features from a New Sample of Young SN Ic Spectra

Marc Williamson, Christian Vogl, Maryam Modjaz +17

With the advent of high cadence, all-sky automated surveys, supernovae (SNe) are now discovered closer than ever to their dates of explosion. However, young pre-maximum light follo…

astro-ph.SR2022

StaNdaRT: A repository of standardized test models and outputs for supernova radiative transfer

Stéphane Blondin, Sergei Blinnikov, Fionntan P. Callan +26

We present the first results of a comprehensive supernova (SN) radiative-transfer (RT) code-comparison initiative (StaNdaRT), where the emission from the same set of standardized t…

astro-ph.HE2022★ 52 cited

The Diverse Properties of Type Icn Supernovae Point to Multiple Progenitor Channels

C. Pellegrino, D. A. Howell, G. Terreran +16

We present a sample of Type Icn supernovae (SNe Icn), a newly-discovered class of transients characterized by their interaction with H- and He-poor circumstellar material (CSM). Th…

astro-ph.HE2022

Ultraviolet Spectroscopy and TARDIS Models of the Broad-lined Type-Ic Supernova 2014ad

Lindsey A. Kwok, Marc Williamson, Saurabh W. Jha +11

Few published ultraviolet (UV) spectra exist for stripped-envelope supernovae, and none to date for broad-lined Type Ic supernovae (SN Ic-bl). These objects have extremely high eje…

astro-ph.HE2022★ 24 cited

Early-Time Ultraviolet Spectroscopy and Optical Follow-up Observations of the Type IIP Supernova 2021yja

Sergiy S. Vasylyev, Alexei V. Filippenko, Christian Vogl +19

We present three epochs of early-time ultraviolet (UV) and optical HST/STIS spectroscopy of the young, nearby Type IIP supernova (SN) 2021yja. We complement the HST data with two e…