Discovery of Type IIn Supernova SNF20051117-001 and classification of Type Ia SN2005ki

Astronomy and Astrophysics – Astronomy

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Infra-Red, Optical, Ultra-Violet, Novae, Supernovae

Scientific paper

The Nearby Supernova Factory reports the discovery of supernova SNF20051117-001 (coordinates RA 08:40:09.18 DEC -05:36:02.2 J2000.0) in images obtained November 17.5 UT with an approximate magnitude of 16.3 (calibrated to R) using the QUEST II camera on the Palomar Oschin 48-inch telescope as a part of the JPL Near-Earth Asteroid Tracking component of the Palomar Consortium. A spectrum (range 320-1000 nm) of this object, obtained November 20.6 UT with the Supernova Integral Field Spectrograph (SNIFS) on the University of Hawaii 2.2-meter telescope, shows it to be a Type IIn supernova at a redshift of z = 0.016, exhibiting H-alpha (FWHM 1300 km/s), H-beta, H- gamma and He I 587.6 in emission.

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