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JUSTHAM , Stephen

Last name: JUSTHAM

First name: Stephen

2022 (v1)

Journal article

Metadata-only

The Circumstellar Material around the Type IIP SN 2021yja

Kozyreva, Alexandra Klencki, Jakub Filippenko, Alexei V.

The majority of Type II-plateau supernovae (SNe IIP) have light curves that are not compatible with the explosions of stars in a vacuum; instead, the light curves require the progenitors to be embedded in circumstellar matter (CSM). We report on the successful fitting of the well-observed SN IIP 2021yja as a core-collapse explosion of a massive...

Uploaded on: December 3, 2022
February 16, 2024 (v1)

Journal article

Metadata-only

Is Betelgeuse Really Rotating? Synthetic ALMA Observations of Large-scale Convection in 3D Simulations of Red Supergiants

Ma 马, Jing-Ze 竟泽 Chiavassa, Andrea de Mink, Selma

Abstract The evolved stages of massive stars are poorly understood, but invaluable constraints can be derived from spatially resolved observations of nearby red supergiants, such as Betelgeuse. Atacama Large Millimeter/submillimeter Array (ALMA) observations of Betelgeuse showing a dipolar velocity field have been interpreted as evidence for a...

Uploaded on: November 4, 2024