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

2011/06/30 by Basudeb Dasgupta, Evan O’Connor, Evan P. O'Connor +1 · 4 citations
Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Core (optical fiber) #Mechanics #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Optics #Oscillation (cell signaling) #Particle physics #Particle physics theoretical and experimental studies #Physics #Shock (circulatory) #Shock wave #Supernova #Type II supernova #astro-ph.SR #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.85.065008

published as Phys. Rev. D 85, 065008, 2012 · v2: Added multi-angle calculations. Conclusions unchanged. 16 pages, 7 figures. Accepted to Phys. Rev. D after revisions: 15 Sept 2011 (major), 24 Jan 2012 (minor)

arxiv created 2012/02/01 · openalex publication_date 2012/03/07 · arxiv updated 2014/03/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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 11.2\mathrm\text\ensuremath-M_\ensuremath\bigodot and 15\mathrm\text\ensuremath-M_\ensuremath\bigodot 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.

Citations

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Cited by

• Flavor stability analysis of dense supernova neutrinos with flavor-dependent angular distributions
• Simple method of diagnosing fast flavor conversions of supernova neutrinos
• SELF-SUSTAINED ASYMMETRY OF LEPTON-NUMBER EMISSION: A NEW PHENOMENON DURING THE SUPERNOVA SHOCK-ACCRETION PHASE IN THREE DIMENSIONS
• Fast Pairwise Conversion of Supernova Neutrinos: A Dispersion Relation Approach