Neutrino Emission from Type Ia Supernovae

[摘要] TypeIasupernovae(SNeIa)produceaburstofneutrinoemissionduetoelectroncapturesonfreeprotonsandnucleiinthehot,densemattersynthesizedbyexplosivenucleosynthesis.WecalculatedtheluminosityandenergyspectrumoftheburstforastandardSNIamodelW7.Wefoundapeakluminosityofthetotalthree-flavorneutrinosof$$sim$$10$$^{50}$$ergs$$^{-1}$$andaneutrinoemissiondurationof$$sim$$1s.Theaverageenergyoftheneutrinoswasfoundtobe$$sim$$3 MeV.ElectronneutrinosgeneratedinthecentralregionofSNIaundergoflavoroscillationsbetween$$v_e,v_mu$$,and$$v_au$$.Asaresult,thefractionofelectronneutrinosisreducedto$$sim$$0.55.ThedetectabilityoftheseneutrinosandtheimplicationsforprogenitorscenariosofSNeIaarediscussed.

[学科分类] 天文学(综合)

[关键词] neutrinos;stars:general;stars:supernovae:general