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For refcode 1994IAUC.6065....1C:
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1994IAUC.6065....1C Circular No. 6065 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION SUPERNOVA 1994Y IN NGC 5371 A. Clocchiatti, R. Garcia-Lopez, E. S. Barker, W. Wren, and J. C. Wheeler, University of Texas, report: "A fully-reduced spectro- gram (range 380-640 nm, resolution 1.3 nm) of SN 1994Y, obtained on Aug. 27.15 UT at the 2.7-m telescope of McDonald Observatory, shows the lines of the Balmer series and Na D in emission superimposed on a blue continuum. In the low-S/N spectrum, the emission lines do not show a P-Cyg absorption counterpart with the possible exception of Na D, but consist of a narrow core and a broad base, both cen- tered at the velocity of NGC 5371. The FWHM of the broader compo- nents implies an expansion velocity of about 2600 km/s, while the FWZI implies a maximum expansion of about 7000 km/s. SN 1994Y ap- parently belongs to the 'Seyfert 1' subclass of type-II supernovae (Filippenko 1989, A.J. 97, 726), called type-IIn by Schlegel (1990, MNRAS 244, 269). Continuous monitoring of this event is strongly recommended." X. J. Jiang, W. Liu, and J. Y. Hu, Beijing Observatory, commu- nicate: "A spectrogram (range 450-700 nm, resolution 0.53 nm/pixel) of SN 1994Y has been obtained using the 2.2-m telescope at Beijing Observatory, Xinglong, on Aug. 25. The spectrum shows strong Balmer emission, confirming it to be a type-II supernova. The wavelengths of the H-alpha and H-beta emission lines coincide with the radial velocity of the host galaxy NGC 5371 (2550 km/s). The emission lines are narrow compared with normal type-II supernovae; the FWHM of H-alpha and H-beta are about 1200 km/s. Another dominating wide emission feature peaks at 592.9 nm, possibly due to He I (587.6 nm) and Na I (589.3 nm). A feature at 673.0 nm is from He I (667.8 nm). The spectrum is similar to that of SN 1994W, but without narrow absorption features at the blue side of the Balmer emission lines." A. Boattini and M. Tombelli, Florence, provide an accurate position for this object: R.A. = 13h53m30s.57, Decl. = +40o42'32".8 (equinox 1950.0). 1994 August 29 (6065) Daniel W. E. Green
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