The first stellar explosions: Theoretical light curves and spectra of pair-instability supernovae

Daniel Kasen, Alex Heger, Stan Woosley

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3 Citations (Scopus)

Abstract

The flrst generation of stars likely consisted of massive objects (M<100M) which suffered minimal mass loss, setting the stage for an impressive first generation of stellar explosions. For the initial mass range (140<M<260M) stars die in a thermonuclear runaway triggered by the pair production instability. Such supernova events can be remarkably energetic (∼1053ergs) and some may synthesize considerable amounts of radioactive isotopes (∼50M of 56Ni). We have calculated broadband light curves and spectral time-series for a number of pair-instability supernova models, spanning a range of initial masses and degrees of mass loss. Here we briefly discuss the observable properties and potential detectability of a few representative models.

Original languageEnglish
Title of host publicationFirst Stars III
Pages263-267
Number of pages5
Volume990
DOIs
Publication statusPublished - 28 Apr 2008
Externally publishedYes
EventFirst Stars III - Santa Fe, NM, United States of America
Duration: 15 Jul 200720 Jul 2007

Conference

ConferenceFirst Stars III
CountryUnited States of America
CitySanta Fe, NM
Period15/07/0720/07/07

Keywords

  • Population III
  • Radiative transfer
  • Supernovae

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