Role of collective neutrino flavor oscillations in core-collapse supernova shock revival

Basudeb Dasgupta, Evan P. O’Connor, and Christian D. Ott
Phys. Rev. D 85, 065008 – Published 7 March 2012

Abstract

We explore the effects of collective neutrino flavor oscillations due to neutrino-neutrino interactions on the neutrino heating behind a stalled core-collapse supernova shock. We carry out axisymmetric (two-dimensional) radiation-hydrodynamic core-collapse supernova simulations, tracking the first 400 ms of the post-core-bounce evolution in 11.2M and 15M progenitor stars. Using inputs from these two-dimensional simulations, we perform neutrino flavor oscillation calculations in multienergy single-angle and multiangle single-energy approximations. Our results show that flavor conversions do not set in until close to or outside the stalled shock, enhancing heating by not more than a few percent in the most optimistic case. Consequently, we conclude that the postbounce preexplosion dynamics of standard core-collapse supernovae remains unaffected by neutrino oscillations. Multiangle effects in regions of high electron density can further inhibit collective oscillations, strengthening our conclusion.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 6 June 2011

DOI:https://doi.org/10.1103/PhysRevD.85.065008

© 2012 American Physical Society

Authors & Affiliations

Basudeb Dasgupta1, Evan P. O’Connor2, and Christian D. Ott2

  • 1CCAPP, The Ohio State University, 191 West Woodruff Avenue, Columbus, Ohio 43210, USA
  • 2TAPIR, California Institute of Technology, MC 350-17, 1200 East California Boulevard, Pasadena, California 91125, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 85, Iss. 6 — 15 March 2012

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×