Weak interaction rates on titanium isotopes are important during the latephases of evolution of massive stars. A search was made for key titaniumisotopes from available literature and a microscopic calculation of weak ratesof these nuclei were performed using the proton-neutron quasiparticle randomphase approximation (pn-QRPA) theory. Earlier the author presented the stellarelectron capture rates on titanium isotopes. In this paper I present theneutrino and antineutrino energy loss rates due to capture and decay rates onisotopes of titanium in stellar environment. Accurate estimate of neutrinoenergy loss rates are needed for the study of the late stages of the stellarevolution, in particular for cooling of neutron stars and white dwarfs. Theresults are also compared against previous calculations. At high stellartemperatures the calculated neutrino and antineutrino energy loss rates arebigger by more than two orders of magnitude as compared to the large scaleshell model results and favor stellar cores with lower entropies. This studycan prove useful for core-collapse simulators.
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