SIMBAD references

Independent discoveries of a supernova in the Abell galaxy cluster 1656 have been reported on unfiltered CCD images by H. Pugh and W. Li (LOSS/KAIT; cf. IAUC 8541) and by R. Quimby, F. Castro, P. Hoeflich, J. C. Wheeler (all at the University of Texas), and C. Gerardy (of Imperial College); Quimby's group used the ROTSE-IIIb telescope (cf. IAUC 8508). Pugh and Li provide the following precise position for SN 2005ck: R.A. = 13h02m18s.72, Decl. = +28o20'45".5 (equinox 2000.0), which is 58".3 east and 24".3 south of the center of an apparent host galaxy. Quimby et al. report position end figures 18s.77, 43".8 for the new object. Approximate magnitudes for SN 2005ck: 2004 Dec. 15, [18.8 (ROTSE-IIIb); 2005 Jan. 14, [18.8 (ROTSE-IIIb); Apr. 17.26 UT, [19.5 (KAIT); May 23.25, [18.5 (KAIT); June 1.26, 19.0: (KAIT; hint of object near limit of image); 5.27, 18.7 (ROTSE-IIIb); 8.25, 18.6 (ROTSE-IIIb); 12.24, 18.6 (KAIT); 13.24, 18.5 (KAIT). Quimby adds that a spectrum (range 420-890 nm) of SN 2005ck, obtained on June 13.22 with the 9.2-m Hobby-Eberly Telescope (+ Marcario Low-Resolution Spectrograph) by S. C. Odewhan and E. Terrazas, shows it to be a type-Ia supernova; the spectrum is very similar to that of SN 1994D near maximum light (Patat et al. 1996, MNRAS 278, 111). Using 1994D as a template, they find an approximate redshift of z = 0.08, ruling out any association to the neighboring Coma-cluster galaxies, leaving the host as yet unidentified.