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ESC observations of SN 2005cf. II. Optical spectroscopy and the high-velocity features

Garavini, Gabriele; Nobili, Serena; Taubenberger, Stefano; Pastorello, Andrea; Elias-Rosa (Elias de la Rosa), Nancy; Stanishev, Vallery; Blanc, G; Benetti, Stefano; Goobar, Ariel; Mazzali, Paolo A; Sanchez, S F; Salvo, Maria; Schmidt, Brian; Hillebrandt, Wolfgang

Description

The ESC-RTN optical spectroscopy data set for SN 2005cf is presented and analyzed. The observations range from -11.6 and +77.3 days with respect to B-band maximum light. The evolution of the spectral energy distribution of SN 2005cf is characterized by the presence of high velocity Si II and Ca II features. SYNOW synthetic spectra are used to investigate the ejecta geometry of silicon. Based on the synthetic spectra, the Si II high-velocity feature appears detached at 19500 km s-1. We also...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
URI: http://hdl.handle.net/1885/25755
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361:20066971

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