Abstract
Current core collapse supernovae (cc-SNe) models predict overproduction of (44) Ti compared to observations. We present a model for an alternative channel where a cc-SN explosion is followed by a neutron star detonation (Quark Nova or QN), resulting in a spallation reaction of SN ejecta that produces (44) Ti. We can achieve a (44) Ti production of ∼ 10(-4}) M_⊙ with our model under the right time delay between the QN and the SN. Our model also produces unique signals not found in standard, cc-SN nucleosynthesis models. Some of these unique signals include a significantly large production of (7) Be and (22) Na. We discuss some of these signals by analyzing the late time light curve and gamma spectroscopy of our model.
