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Optical and Infrared Photometry of SN 2005df

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arxiv 1711.10345 v1 pith:WX2SZXKL submitted 2017-11-28 astro-ph.SR

Optical and Infrared Photometry of SN 2005df

Kevin Krisciunas , Nicholas B. Suntzeff , Juan Espinoza , David Gonzalez , Alberto Miranda , Pedro Sanhueza This is my paper
classification astro-ph.SR
keywords photometryctiogalaxyhostmatchesobtainedopticalsupernova
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We present optical BVRI and near-infrared YJHK_s photometry of the normal Type Ia supernova 2005df, obtained with the CTIO 1.3-m and 0.9-m telescopes. The B- and V-band photometry, S-corrected to the filter prescriptions of Bessell(1990), matches the corresponding photometry from the ANU published by Milne et al. (2010). The R-band photometry from CTIO and ANU matches well without any corrections. A combination of V-band and near-IR photometry shows that SN 2005df is unreddened in its host galaxy. Spectropolarimetry of this supernova was obtained with the VLT, and the distance to the host galaxy is being determined from observations of Cepheids using the Hubble Space Telescope.

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