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For refcode 1996AJ....111..327R:
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Copyright by American Astronomical Society. Reproduced by permission
1996AJ....111..327R UBVRI PHOTOMETRY OF THE TYPE Ic SN 1994I IN M51 MICHAEL W. RICHMOND Department of Astrophysical Sciences, Princeton University. Princeton, New Jersey 08544 Electronic mail: richmond@astro.princeton.edu SCHUYLER D. VAN DYK, WYNN HO, CHIEN PENG, YOUNG PAIK, RICHARD R. TREFFERS, AND ALEXEl V. FILIPPENKO Astronomy Department, University of California. Berkeley, California 94720 JAVIER BUSTAMANTE-DONAS Department of Ethics and Sociology, Universidad Complutense de Madrid. Madrid 28040, Spain MICHAEL MOELLER AND CLAUS PAWELLEK Luebeck Public Observatory, Luebeck, Germany HEATHER TARTARA AND MELODY SPENCE Oil City High School, Oil City, Pennsylvania 16301 Received 1995 July 31; revised 1995 October 10 ABSTRACT We present optical photometry for the type Ic SN 1994I in M51 (NGC 5194) from 1994 March 31 to August 6, UT starting eight days before B-band maximum and ending three months later. We estimate the extinction to SN 1994I was considerable and quite uncertain, A_v_= 1.4+/-0.5 mag, making a detailed comparison to other supernovae difficult. Using a distance modulus {mu} = 29.6+/-0.3 mag to M51, we calculate absolute magnitudes and a quasibolometric light curve for the supernova. It appears that SN 1994I was less luminous than "normal" type Ia SNe. There is strong evidence that the ejecta of SN 1994I were much less massive than those of other SNe.
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