Matt Siebert
YOU?
Author Swipe
View article: Testing for Intrinsic Type Ia Supernova Luminosity Evolution at z>2 with JWST
Testing for Intrinsic Type Ia Supernova Luminosity Evolution at z>2 with JWST Open
The James Webb Space Telescope} (JWST) is opening new frontiers of transient discovery and follow-up at high-redshift. Here we present the discovery of a spectroscopically confirmed Type Ia supernova (SN Ia; SN $2023$aeax) at $z=2.15$ with…
View article: Roman CCS White Paper: Identifying high-redshift pair-instability supernovae by adding sparse F213 filter observations
Roman CCS White Paper: Identifying high-redshift pair-instability supernovae by adding sparse F213 filter observations Open
Pair-instability supernovae (PISNe) are explosions of very massive stars that may have played a critical role in the chemical evolution and reionization of the early Universe. In order to quantify their roles, it is required to know the PI…
View article: Observational properties of a bright type Iax SN 2018cni and a faint type Iax SN 2020kyg
Observational properties of a bright type Iax SN 2018cni and a faint type Iax SN 2020kyg Open
We present the optical photometric and spectroscopic analysis of two type Iax SNe 2018cni and 2020kyg. SN 2018cni is a bright type Iax SN (M$_{V,peak}$ = $-$17.81$\pm$0.21 mag) whereas SN 2020kyg (M$_{V,peak}$ = $-$14.52$\pm$0.21 mag) is a…
View article: Panchromatic evolution of three luminous red novae: Forbidden hugs in pandemic times -- IV
Panchromatic evolution of three luminous red novae: Forbidden hugs in pandemic times -- IV Open
We present photometric and spectroscopic data on three extragalactic luminous red novae (LRNe): AT2018bwo, AT2021afy, and AT2021blu. AT2018bwo was discovered in NGC45 (at 6.8 Mpc) a few weeks after the outburst onset. During the monitoring…