Evidence for a Chandrasekhar-mass explosion in the Ca-strong 1991bg-like type la supernova 2016hnk

Galbany, L.; Ashall, C.; Hoflich, P.; Gonzalez-Gaitan, S.; Taubenberger, S.; Stritzinger, M.; Hsiao, E. Y.; Mazzali, P.; Baron, E.; Blondin, S.; Bose, S.; Bulla, M.; Burke, J. F.; Burns, C. R.; Cartier, R.; Chen, P.; Della Valle, M.; Diamond, T. R.; Gutierrez, C. P.; Harmanen, J.; Hiramatsu, D.; Holoien, T. W-S; Hosseinzadeh, G.; Howell, D. Andrew; Huang, Y.; Inserra, C.; de Jaeger, T.; Jha, S. W.; Kangas, T.; Kromer, M.; Lyman, J. D.; Maguire, K.; Marion, G. Howie; Milisavljevic, D.; Prentice, S. J.; Razza, A.; Reynolds, T. M.; Sand, D. J.; Shappee, B. J.; Shekhar, R.; Smartt, S. J.; Stassun, K. G.; Sullivan, M.; Valenti, S.; Villanueva, S.; Wang, X.; Wheeler, J. Craig; Zhai, Q.; Zhang, J.
2019
ASTRONOMY & ASTROPHYSICS
DOI
10.1051/0004-6361/201935537
Aims. We present a comprehensive dataset of optical and near-infrared photometry and spectroscopy of type Ia supernova (SN) 2016hnk, combined with integral field spectroscopy (IFS) of its host galaxy, MCG -01-06-070, and nearby environment. Our goal with this complete dataset is to understand the nature of this peculiar object.