Journal Article

Photometric and spectroscopic study of a highly reddened type Ia supernova SN 2003hx in NGC 2076

Kuntal Misra, D. K. Sahu, G. C. Anupama and Kavita Pandey

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 389, issue 2, pages 706-716
Published in print September 2008 | ISSN: 0035-8711
Published online September 2008 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2008.13398.x
Photometric and spectroscopic study of a highly reddened type Ia supernova SN 2003hx in NGC 2076

Show Summary Details

Preview

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(BV) = 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.

Keywords: supernovae: general; supernovae: individual: SN 2003hx; galaxies: individual: NGC 2076

Journal Article.  6307 words.  Illustrated.

Subjects: Astronomy and Astrophysics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.