2006CBET..393....1Q

R. Quimby, University of Texas; P. Brown, Pennsylvania State University; and C. Gerardy, Imperial College, report that a spectrogram (range 420-890 nm) of 2006X (cf. IAUC 8667), obtained on Feb. 8.35 UT with the 9.2-m Hobby-Eberly Telescope (+ Marcario Low-Resolution Spectrograph) by S. C. Odewahn and S. Rostopchin under poor conditions, shows it to be an early type-Ia supernova. The spectra are similar to those of SN 2002bo at 1-2 weeks before maximum light (Benetti et al. 2004, MNRAS 348, 261), but with a redder continuum. Adopting the recession velocity of 1571 km/s for the host (Rand 1995, A.J. 109, 2444, via NED), the velocity of the Si II 635.5-nm minimum is 20700 km/s.