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45 papers
Nebular Nitrogen Line Emission in Stripped-Envelope Supernovae -- a New Progenitor Mass Diagnostic
Stan Barmentloo, Anders Jerkstrand, Koichi Iwamoto +4
Nitrogen is produced by CNO-cycling in massive stars, and can be ejected in significant amounts in supernova explosions. While in H-rich SNe, its [\ion{N}{II}] 6548, 6583 emission…
Model Light Curves for Type Ib and Ic Supernovae
Stan Woosley, Tuguldur Sukhbold, Daniel Kasen
Using the Monte Carlo code, SEDONA, multiband photometry and spectra are calculated for supernovae derived from stripped helium stars with presupernova masses from 2.2 to 10.0 $M_\…
Three-Dimensional Simulations of Magnetar-Powered Superluminous Supernovae
Ke-Jung Chen, S. E. Woosley, Daniel J. Whalen
A rapidly spinning magnetar in a young supernova (SN) can produce a superluminous transient by converting a fraction of its rotational energy into radiation. Here, we present the f…
Magnetar-Powered Supernovae in Two Dimensions. I. Superluminous Supernovae
Ke-Jung Chen, S. E. Woosley, Tuguldur Sukhbold
Previous studies have shown that the radiation emitted by a rapidly rotating magnetar embedded in a young supernova can greatly amplify its luminosity. These one-dimensional studie…
Low-energy Population III supernovae and the origin of extremely metal-poor stars
Ke-Jung Chen, Alexander Heger, Daniel J. Whalen +3
Some ancient, dim, metal-poor stars may have formed in the ashes of the first supernovae (SNe). If their chemical abundances can be reconciled with the elemental yields of specific…
A two-parameter criterion for classifying the explodability of massive stars by the neutrino-driven mechanism
T. Ertl, H. -Th. Janka, S. E. Woosley +2
Thus far, judging the fate of a massive star (either a neutron star (NS) or a black hole) solely by its structure prior to core collapse has been ambiguous. Our work and previous a…