Optical and Infrared Observations of SN 2002Dj: Some Possible Common Properties of Fast-Expanding Type Ia Supernovae
Optical and infrared observations of SN 2002dj: some possible common properties of fast-expanding Type Ia supernovae G. Pignata,1,2 S. Benetti,3 P. A. Mazzali,4,5 R. Kotak,6 F. Patat,7 P. Meikle,8 M. Stehle,4 B. Leibundgut,7 N. B. Suntzeff,9 L. M. Buson,3 E. Cappellaro,3 A. Clocchiatti,2 M. Hamuy,1 J. Maza,1 J. Mendez,10 P. Ruiz-Lapuente,10 M. Salvo,11 B. P. Schmidt,11 M. Turatto3 and W. Hillebrandt4 1Departamento de Astronom´ıa, Universidad de Chile, Casilla 36-D, Santiago, Chile 2Departamento de Astronom´ıa y Astrof´ısica, Pontificia Universidad Catolica´ de Chile, Casilla 306, Santiago 22, Chile 3INAF Osservatorio Astronomico di Padova, Vicolo dell Osservatorio 5, I-35122 Padova, Italy 4Max-Planck-Institut fur¨ Astrophysik, Karl-Schwarzschild-Str. 1, D-85741 Garching bei Munchen,¨ Germany 5Osservatorio Astronomico di Trieste, Via Tiepolo 11, I-34131 Trieste, Italy 6Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN 7European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei Munchen,¨ Germany 8Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BW 9Department of Physics, Texas A&M University, College Station, TX 77843-4242, USA 10Department of Astronomy, University of Barcelona, Marti i Franques 1, E-08028 Barcelona, Spain 11Research School of Astronomy and Astrophysics, Australian National University, Cotter Road, Weston Creek, ACT 2611, Australia ABSTRACT As part of the European Supernova Collaboration, we obtained extensive photometry and spectroscopy of the Type Ia supernova (SN Ia) SN 2002dj covering epochs from 11 d before to nearly two years after maximum.
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