SIMBAD references

S. Ryder, Anglo-Australian Observatory; and E. Kankare and S. Mattila, Tuorla Observatory, report that they obtained further observations of the apparent supernova found by them on Feb. 24.6 UT in the luminous infrared galaxy IC 883 (cf. CBET 2213). Observations on May 4.5 UT, again using NIRI and the ALTAIR laser guide-star adaptive-optics system on the Gemini North Telescope, show a source coincident in position with that reported previously to within 0".01, after subtraction of an image obtained with the same instrument on 2008 April 15.5. The K-band magnitude of 2010cu is approximately 18.5, consistent with near-infrared light curves of core-collapse supernovae (e.g., Mattila and Meikle 2001, MNRAS 324, 325). High-spatial-resolution follow-up observations at infrared and radio wavelengths are encouraged.