Probing type Ia supernova properties using bolometric light curves from
  the Carnegie Supernova Project and the CfA Supernova Group
  We present bolometric light curves constructed from multi-wavelength
photometry of Type Ia supernovae (SNe Ia) from the Carnegie Supernova Project
and the CfA Supernova Group, using near-infrared observations to provide robust
constraints on host galaxy dust extinction. This set of light curves form a
well-measured reference set for comparison with theoretical models. Ejected
mass and synthesized $^{56}$Ni mass are inferred for each SN Ia from its
bolometric light curve using a semi-analytic Bayesian light curve model, and
fitting formulae provided in terms of light curve width parameters from the
SALT2 and SNooPy light curve fitters. A weak bolometric width-luminosity
relation is confirmed, along with a correlation between ejected mass and the
bolometric light curve width. SNe Ia likely to have sub-Chandrasekhar ejected
masses belong preferentially to the broad-line and cool-photosphere
spectroscopic subtypes, and have higher photospheric velocities and populate
older, higher-mass host galaxies than SNe Ia consistent with Chandrasekhar-mass
explosions. Two peculiar events, SN 2006bt and SN 2006ot, have normal peak
luminosities but appear to have super-Chandrasekhar ejected masses.
