No Supernova in UGC 3933
Abstract
A. V. Filippenko, University of California, Berkeley, reports: "V. T. Junkkarinen, University of California at San Diego, used a Cassegrain CCD spectrograph on the Shane 3-m reflector at Lick Observatory to obtain a spectrum (range 430-710 nm, resolution 1.5-2 nm) of the supernova candidate in UGC 3933 (IAUC 4534) on Jan. 25. A verbal description of the spectrum suggests that the object is an M star; it is very red, and exhibits broad undulations at the wavelengths of molecular bands in late-type stars. The object is not visible on the red Palomar Sky Survey plate, suggesting that it is a long-period variable star (e.g., Mira-type). No other stars having roughly the reported brightness were visible on the TV acquisition screen near the position of the SN candidate." R. Fesen, K. Bjorkman, and J. Doggett, University of Colorado, report an observation of this object using the 0.6-m telescope (+ CCD) at Summers- Bausch Observatory; the object (R = 17.2) is located 19" east and 9" north of the galaxy's center.
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- January 1988
- Bibcode:
- 1988IAUC.4536....1F