364 citations · 4.3k across the 109 of their papers we have counts for
7 papers · 1 filter
Ultraviolet Spectroscopy of Type IIb Supernovae: Diversity and the Impact of Circumstellar Material
Sagi Ben-Ami, Stephan Hachinger, Avishay Gal-Yam +9
We present new Hubble Space Telescope (HST) multi-epoch ultraviolet (UV) spectra of the bright Type IIb SN 2013df, and undertake a comprehensive anal- ysis of the set of four Type…
The detection rate of early UV emission from supernovae: A dedicated GALEX/PTF survey and calibrated theoretical estimates
Noam Ganot, Avishay Gal-Yam, Eran O. Ofek +22
The radius and surface composition of an exploding massive star,as well as the explosion energy per unit mass, can be measured using early UV observations of core collapse supernov…
A Wolf-Rayet-like progenitor of supernova SN 2013cu from spectral observations of a wind
Avishay Gal-Yam, I. Arcavi, E. O. Ofek +17
The explosive fate of massive stripped Wolf-Rayet (W-R) stars is a key open question in stellar physics. An appealing option is that hydrogen-deficient W-R stars are the progenitor…
Slow-Speed Supernovae from the Palomar Transient Factory: Two Channels
Christopher J. White, Mansi M. Kasliwal, Peter E. Nugent +20
Since the discovery of the unusual prototype SN 2002cx, the eponymous class of low-velocity, hydrogen-poor supernovae has grown to include at most another two dozen members identif…
Interaction-powered supernovae: Rise-time vs. peak-luminosity correlation and the shock-breakout velocity
E. O. Ofek, I. Arcavi, D. Tal +16
Interaction of supernova (SN) ejecta with the optically thick circumstellar medium (CSM) of a progenitor star can result in a bright, long-lived shock breakout event. Candidates fo…
The rise and fall of the Type Ib supernova iPTF13bvn - Not a massive Wolf-Rayet star
C. Fremling, J. Sollerman, F. Taddia +9
We investigate iPTF13bvn, a core-collapse (CC) supernova (SN) in the nearby spiral galaxy NGC 5806. This object was discovered by the intermediate Palomar Transient Factory very so…