SIMBAD references

Li and Filippenko note that 2008D is coincident in position with a transient in NGC 2770 that was first reported in x-ray observations by Swift/XRT (Berger and Soderberg, http://gcn.gsfc.nasa.gov/gcn3/7159.gcn3 = GCN 7159; Kong and Maccarone, http://www.astronomerstelegram.org/?read=1355), and then was reported optically by Deng and Zhu (GCN 7160), Thoene et al. (GCN 7161), and Denisenko et al. (GCN 7166). In particular, Denisenko et al. reported an unfiltered magnitude of 18.1 for the new object on Jan. 10.8. Compared to the brightness of the new object in the KAIT image on Jan. 11 (mag 17.5), the new object seems to have brightened significantly.