Supernova 2011jd

Report the discovery of an apparent supernova in unfiltered Catalina Sky Survey (CSS) images: SN 2011 UT R.A. (2000.0) Decl. Mag. Offset 2011jd Nov. 19.17 0 22 54.27 +13 52 22.4 18.3 0".2 W, 2".2 N Further CSS magnitudes for 2011jd: Oct. 15.36 UT, [19.5; Nov. 27.20, 18.1. L. Tomasella, S. Benetti, A. Pastorello, S. Valenti, and F. Bufano, Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Padova, on behalf of a larger collaboration, report that a spectrogram of 2011jd, obtained on Dec. 18.87 UT with the Asiago 1.82-m Copernico Telescope (+ AFOSC; range 350-820 nm; resolution 2.4 nm), shows it to be a type-Ia supernova. The best fit to this spectrum found by GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383; available at website URL https://gelato.tng.iac.es/login.cgi) suggests that 2011jd is similar to type-Ia supernovae between three and four weeks after maximum light, if a redshift of 0.079 is assumed for the host galaxy....