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Recent observations of Type Ia supernovae (SNe Ia) have shown diversifiedproperties of the explosion strength, light curves and chemical composition. Toinvestigate possible origins of such diversities in SNe Ia, we have presentedmulti-dimensional hydrodynamical study of explosions and associatednucleosynthesis in the near Chandrasekhar mass carbon-oxygen (CO) white dwarfs(WDs) for a wide range of parameters (Leung and Nomoto 2018 ApJ). In thepresent paper, we extend our wide parameter survey of models to the explosionsof sub-Chandrasekhar mass CO WDs. We take the double detonation model for theexplosion mechanism. The model parameters of the survey include the metallicityof $Z = 0 - 5~Z_\odot$, the CO WD mass of $M = 0.90 - 1.20~M_\odot$, and the Heenvelope mass of $M_{\rm He} = 0.05 - 0.20~M_\odot$. We also study how theinitial He detonation configuration, such as spherical, bubble, and ringshapes, triggers the C detonation. For these parameters, we derive the minimumHe envelope mass necessary to trigger the C detonation. We then examine how theexplosion dynamics and associated nucleosynthesis depend on these parameters,and compare our results with the previous representative models. We compare ournucleosynthesis yields with the unusual abundance patterns of Fe-peak elementsand isotopes observed in SNe Ia 2011fe, 2012cg and 2014J, as well as SN Iaremnant 3C 397 to provide constraints on their progenitors and environments. Weprovide the nucleosynthesis yields table of the sub-Chandrasekhar massexplosions, to discuss their roles in the galactic chemical evolution andarchaeology.

Explosive Nucleosynthesis in Sub-Chandrasekhar Mass White Dwarf Models for Type Ia Supernovae: Dependence on Model Parameters