Carnegie Supernova Project: The First Homogeneous Sample of "Super-Chandrasekhar Mass"/2003fg-like Type Ia Supernova

Author(s): Ashall, C; Lu, J; Hsiao, EY; Hoeflich, P; Phillips, MM; Galbany, L; Burns, CR; Contreras, C; Krisciunas, K; Morrell, N; Stritzinger, MD; Suntzeff, NB; Taddia, F; Anais, J; Baron, E; Brown, PJ; Busta, L; Campillay, A; Castellon, S; Corco, C; Davis, S; Folatelli, G; Forster, F; Freedman, WL; Gonzalez, C; Hamuy, M; Holmbo, S; Kirshner, RP; Kumar, S; Marion, GH; Mazzali, P; Morokuma, T; Nugent, PE; Persson, SE; Piro, AL; Roth, M; Salgado, F; Sand, DJ; Seron, J; Shahbandeh, M; Shappee, BJ | Abstract: We present a multi-wavelength photometric and spectroscopic analysis of thirteen "Super-Chandrasekhar Mass"/2003fg-like type Ia Supernova (SNe~Ia). Nine of these objects were observed by the Carnegie Supernova Project. 2003fg-like have slowly declining light curves ($\Delta m_{15}$(B) $l$1.3 mag), and peak absolute $B$-band magnitudes between $-19