TY - JOUR

T1 - Neutrinos from pre-supernova

T2 - Effects of nuclear temperature on luminosities and spectra

AU - Dzhioev, Alan A.

AU - Yudin, A. v.

AU - Dunina-Barkovskaya, N. V.

AU - Vdovin, A. I.

PY - 2024

Y1 - 2024

N2 - Accurate estimates of (anti)neutrino spectra and luminosities are needed to determine the possibility of pre-supernova neutrino detection. Using the recently proposed thermal quasiparticle random-phase approximation (TQRPA) method, we have studied thermal effects on the spectra and luminosities of (anti)neutrinos emitted in nuclear weak-interaction processes under pre-supernova conditions. We show that a thermodynamically consistent consideration of Gamow–Teller transitions in hot nuclei increases the energy luminosity and results in larger average (anti)neutrino energies.

AB - Accurate estimates of (anti)neutrino spectra and luminosities are needed to determine the possibility of pre-supernova neutrino detection. Using the recently proposed thermal quasiparticle random-phase approximation (TQRPA) method, we have studied thermal effects on the spectra and luminosities of (anti)neutrinos emitted in nuclear weak-interaction processes under pre-supernova conditions. We show that a thermodynamically consistent consideration of Gamow–Teller transitions in hot nuclei increases the energy luminosity and results in larger average (anti)neutrino energies.

KW - pre-supernova

KW - (anti)neutrinos

KW - hot nuclei

KW - stellar evolution code MESA

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85212692855&origin=inward&txGid=92acdb9b224d05e4b99f71a0c80af334

U2 - 10.1142/S0218301324410143

DO - 10.1142/S0218301324410143

M3 - Article

JO - International Journal of Modern Physics E

JF - International Journal of Modern Physics E

SN - 0218-3013

M1 - 2441014

ER -