A New Method to Calibrate the Magnitudes of Type Ia Supernovae at Maximum Light

Details A New Method to Calibrate the Magnitudes of Type Ia Supernovae at Maximum Light A New Method to Calibrate the Magnitudes of Type Ia Supernovae at Maximum Light

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..339...69p&link_type=abstract

Observing Dark Energy, ASP Conference Series, Vol. 339, Proceedings of a meeting held 18-20 March 2004 in Tucson, Arizona. Edit

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We present a new empirical method for fitting BVRI light curves of Type Ia supernovae, estimate their host galaxy extinction and calibrate their magnitudes at maximum to obtain distances. This method combines elements from two widely used techniques in the literature: the Δm15 template fitting method (Phillips et al. 1999) and MLCS (Riess, Press, & Kirshner 1996). Fitting published light curves of 47 SNe in the Hubble flow, we obtain a Hubble diagram with rms scatter σ=0.15 mag} in V (NSNe=37).

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