SN 2007ax: An Extremely Faint Type Ia Supernova

@article{Kasliwal2008SN2A,
  title={SN 2007ax: An Extremely Faint Type Ia Supernova},
  author={M. Kasliwal and E. Ofek and A. Gal-Yam and A. Rau and P. J. Brown and S. Cenko and P. B. Cameron and R. Quimby and S. Kulkarni and L. Bildsten and P. M. Caltech and Psu and Ucsb and S. Obs.},
  journal={The Astrophysical Journal},
  year={2008},
  volume={683}
}
We present multiband photometric and optical spectroscopic observations of SN 2007ax, the faintest and reddest Type Ia supernova (SN Ia) yet observed. With M_B = − 15.9 and (B − V)_(max) = 1.2, this SN is over half a magnitude fainter at maximum light than any other SN Ia. Similar to subluminous SN 2005ke, SN 2007ax also appears to show excess in UV emission at late time. Traditionally, Δ m_(15)(B) has been used to parameterize the decline rate for SNe Ia. However, the B-band transition from… Expand

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