Supernovae 2004ci and 2004cr

Details Supernovae 2004ci and 2004cr Supernovae 2004ci and 2004cr

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iauc.8360....1f&link_type=abstract

IAU Circ., 8360, 1 (2004). Edited by Green, D. W. E.

Physics

Scientific paper

R. J. Foley, M. Ganeshalingam, and A. V. Filippenko, University of California, report that CCD spectra (range 330-1000 nm), obtained on June 20 UT with the Shane 3-m telescope at Lick Observatory, show that SNe 2004ci (IAUC 8357) and 2004cr (IAUC 8359) are both of type II. The expansion velocities, derived from the minimum of H_beta for SNe 2004ci (recession velocity 4158 km/s from narrow H_alpha) and 2004cr (recession velocity 5055 km/s from narrow H_alpha), are 11813 and 8443 km/s, respectively.

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