Supernova 2011ae in MCG -03-30-19 = Psn J11544925-1651436

Report the Catalina Real-time Transient Survey's discovery of an apparent supernova in public images from the Catalina Sky Survey (CSS). SN 2011 UT R.A. (2000.0) Decl. Mag. Offset 2011ae Feb. 12.43 11 54 49.25 -16 51 43.6 15.5 4".9 W, 8".4 N Further unfiltered CCD magnitude estimates for 2011ae: Feb. 5.46 UT, [18.5 (CSS); 13.41, 15.3 (remotely with the LB3 0.35-m telescope at Rodeo, NM, U.S.A.). Drake writes that the presumed host galaxy has redshift z = 0.0060. The object was given the designation PSN J11544925-1651436 when posted by Drake on the Central Bureau's TOCP webpage, and based on the spectroscopy below is here assigned the final designation SN 2011ae. D. K. Sahu, S. Arora, and P. Anto, Indian Institute of Astrophysics, Bangalore, report that a low-resolution spectrogram (range 350-930 nm) of 2011ae, obtained on Feb. 21.75 UT with the Indian Astronomical Observatory's 2-m Himalayan Chandra Telescope (+ HFOSC), shows it to be a normal type-Ia supernova, a few days before maximum light. Using the SNID code of Blondin and Tonry (2007, Ap.J. 666, 1024), the spectrum of 2011ae is found to best match that of SN 1990N at about 5 days before maximum light. Adopting a recession velocity of 1813 km/s for the presumed host galaxy (de Vaucouleurs et al. 1991, Third Reference Catalogue of Bright Galaxies), MCG -03-30-19, the velocity corresponding to the Si II 635.5-nm absorption line is 12500 km/s....