2003IAUC.8045....2H

M. Hamuy, Carnegie Observatories, reports that spectroscopic observations (range 320-920 nm), made by J. Maza (University of Chile) on Jan. 9.11 UT with the Las Campanas Observatory Baade 6.5-m telescope (+ Boller & Chivens spectrograph), show that SN 2003F is a type-Ia supernova, very similar to SN 1994D at 3 days before maximum. The minimum of the Si II 635.5-nm line yields an expansion velocity of 10400 km/s. The interstellar Na I D line is present in absorption with an equivalent width of 0.16 nm, and this suggests some reddening in the host galaxy. A spectrum of SN 2003G, from Jan. 9.05, has a blue continuum and a strong H-alpha line in emission with an FWHM of 400 km/s, superposed on a broader emission component, indicating that the supernova is of type IIn; a narrow absorption is present in the blue wing of H-alpha, and the spectrum bears strong resemblance to that of SN 1994W (Filippenko 1997, ARAA 35, 309).