TY - JOUR
T1 - On stellar evolution in a neutrino hertzsprung-russell diagram
AU - Farag, Ebraheem
AU - Timmes, F. X.
AU - Taylor, Morgan
AU - Patton, Kelly M.
AU - Farmer, R.
N1 - Publisher Copyright:
© 2020. The Author(s). Published by the American Astronomical Society
PY - 2020/4/20
Y1 - 2020/4/20
N2 - We explore the evolution of a select grid of solar metallicity stellar models from their pre-main-sequence phase to near their final fates in a neutrino Hertzsprung Russell diagram, where the neutrino luminosity replaces the traditional photon luminosity. Using a calibrated MESA solar model for the solar neutrino luminosity (presented entiti) as a normalization, we identify ;0.3MeV electron neutrino emission from helium burning during the helium flash (presented entiti)2 cm-2 s-1 for a star located at a distance of d parsec, timescale ;3 days) and the thermal pulse (presented entiti), timescale ;0.1 yr) phases of evolution in low-mass stars as potential probes for stellar neutrino astronomy. We also delineate the contribution of neutrinos from nuclear reactions and thermal processes to the total neutrino loss along the stellar tracks in a neutrino Hertzsprung Russell diagram. We find, broadly but with exceptions, that neutrinos from nuclear reactions dominate whenever hydrogen and helium burn, and that neutrinos from thermal processes dominate otherwise.
AB - We explore the evolution of a select grid of solar metallicity stellar models from their pre-main-sequence phase to near their final fates in a neutrino Hertzsprung Russell diagram, where the neutrino luminosity replaces the traditional photon luminosity. Using a calibrated MESA solar model for the solar neutrino luminosity (presented entiti) as a normalization, we identify ;0.3MeV electron neutrino emission from helium burning during the helium flash (presented entiti)2 cm-2 s-1 for a star located at a distance of d parsec, timescale ;3 days) and the thermal pulse (presented entiti), timescale ;0.1 yr) phases of evolution in low-mass stars as potential probes for stellar neutrino astronomy. We also delineate the contribution of neutrinos from nuclear reactions and thermal processes to the total neutrino loss along the stellar tracks in a neutrino Hertzsprung Russell diagram. We find, broadly but with exceptions, that neutrinos from nuclear reactions dominate whenever hydrogen and helium burn, and that neutrinos from thermal processes dominate otherwise.
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U2 - 10.3847/1538-4357/ab7f2c
DO - 10.3847/1538-4357/ab7f2c
M3 - Article
AN - SCOPUS:85085141386
SN - 0004-637X
VL - 893
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 133
ER -