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In this work, photometric and spectroscopic analyses of a very low-luminosityType IIb supernova (SN) 2016iyc have been performed. SN 2016iyc lies near thefaint end among the distribution of similar supernovae (SNe). Given lowerejecta mass ($M_{\rm ej}$) and low nickel mass ($M_{\rm Ni}$) from theliterature, combined with SN 2016iyc lying near the faint end, one-dimensionalstellar evolution models of 9 - 14 M$_{\odot}$ zero-age main-sequence (ZAMS)stars as the possible progenitors of SN 2016iyc have been performed using thepublicly available code MESA. Moreover, synthetic explosions of the progenitormodels have been simulated using the hydrodynamic evolution codes STELLA andSNEC. The bolometric luminosity light curve and photospheric velocitiesproduced through synthetic explosions of ZAMS stars of mass in the range 12 -13 M$_{\odot}$ having a pre-supernova radius $R_{\mathrm{0}} =$ (240 - 300)R$_{\odot}$, with $M_{\rm ej} =$ (1.89 - 1.93) M$_{\odot}$, explosion energy$E_{\rm exp} = $ (0.28 - 0.35) $\times 10^{51}$ erg, and $M_{\rm Ni} < 0.09$M$_{\odot}$, are in good agreement with observations; thus, SN 2016iyc probablyexploded from a progenitor near the lower mass limits for SNe IIb. Finally,hydrodynamic simulations of the explosions of SN 2016gkg and SN 2011fu havealso been performed to compare intermediate- and high-luminosity examples amongwell-studied SNe IIb. The results of progenitor modelling and syntheticexplosions for SN 2016iyc, SN 2016gkg, and SN 2011fu exhibit a diverse range ofmass for the possible progenitors of SNe IIb.

SN 2016iyc: A Type IIb supernova arising from a low-mass progenitor