'Pair instability' diaporamas de présentation

Lecture 19 Pair Instability Supernovae and Population III

Lecture 19 Pair Instability Supernovae and Population III. Mass Loss in Very Massive Primordial Stars. Negligible line-driven winds (mass loss ~ metallicity 1/2 ) (Kudritzki 2002) No opacity-driven pulsations (no metals ) Continuum-driven winds likely small contribution

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Pair-instability supernovae

643 views • 46 slides

Finding the First Cosmic Explosions with JWST and WFIRST

Finding the First Cosmic Explosions with JWST and WFIRST. Daniel Whalen McWilliams Fellow Carnegie Mellon University. My Collaborators. Chris Fryer (LANL) Lucy Frey (LANL) Wes Even (LANL) Daniel Holz (U Chicago). Massimo Stiavelli (STSci)

261 views • 16 slides

New Classes of Super-Luminous Supernovae

New Classes of Super-Luminous Supernovae. Shri Kulkarni & Robert Quimby Caltech, Pasadena. Stellar Evolution (Old Story). Note: Neutrino driven explosions can at most produce 1 Bethe (10 51 erg) If so, supernovae with >1Bethe must have a central engine or a pure thermonuclear event.

217 views • 9 slides