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Title: Photometric and spectroscopic study of a highly reddened type Ia supernova SN 2003hx in NGC 2076
Authors: Misra, K
Sahu, D. K
Anupama, G. C
Pandey, K
Keywords: supernovae: general;supernovae: individual;SN 2003hx - galaxies: individual: NGC 2076
Issue Date: Sep-2008
Publisher: Royal Astronomical Society
Citation: Monthly Notices of the Royal Astronomical Society, Vol. 389, No. 2, pp. 706 - 716
Abstract: We present UBVRI CCD photometry and optical spectra of the type Ia supernova SN 2003hx which appeared in the galaxy NGC 2076, obtained till ∼ 146 d after the epoch of B-band maximum. The supernova reached at maximum brightness in B band on JD 245 2893 ± 1.0 with an apparent magnitude of 14.92 ± 0.01 mag which was estimated by making template fits to the light curves. SN 2003hx is an example of a highly reddened supernova with E(B−V) = 0.56 ± 0.23 . We estimate Rv= 1.97 ± 0.54 which indicates the small size of dust particles as compared to their galactic counterparts. The luminosity decline rate is Δm15(B) = 1.17 ± 0.12 mag and the absolute B-band magnitude obtained from the luminosity versus decline rate relation (Phillips et al. 1999) is MBmax=−19.20 ± 0.18 mag. The peak bolometric luminosity indicates that ∼0.66 M⊙ mass of 56Ni was ejected by the supernova. The spectral evolution indicates the supernova to be a normal type Ia event
Appears in Collections:Publications based on data from IAO, Hanle
IIAP Publications

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