SIMBAD references

Y. Ihara, M. Doi, N. Yasuda, and K. Tokita, University of Tokyo; and T. Hattori, National Astronomical observatory of Japan, report that a spectrum (range 370-900 nm) of 2009A (cf. CBET 1645), obtained on Jan. 4.28 UT with the 8.2-m SUBARU Telescope (+ FOCAS), shows it to be a type-II-P supernova. SN 2009A is best fitted to the spectrum of the type-II-P supernova 1999em at 1 day after discovery (Hamuy et al. 2001, Ap.J. 558, 615) via a reduced- chi**2 method by K. Tokita. The redshift of the possible host galaxy, reported on CBET 1645, is z = 0.0172 ± 0.0002, measured by H_alpha, H_beta, O III, N II, and S III emission lines. The peak velocity of H_alpha of the supernova is measured to be blue-shifted by about 8400 km/s with respect to the galaxy. A tidal feature extending from the host galaxy is observed at the position of the supernova with unfiltered optical imaging observations.