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2003IAUC.8061....3M - IAU Circ., 8061, 3 (2003/January-0)
MATHESON T., CHALLIS P., KIRSHNER R. and CALKINS M.
Abstract (from CDS):
Matheson et al. add that a spectrum (range 320-880 nm) of SN 2003U (cf. IAUC 8059), obtained as above on Jan. 29.53 UT, shows it to be a type-Ia supernova. Adopting the NED recession velocity of 8496 km/s for the host galaxy, the supernova expansion velocities are 13300 km/s for Si II (rest 635.5 nm) and 19200 km/s for Ca II (rest 395.1 nm). The spectral-feature age of the supernova is 5 ± 2 days before maximum light.
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