Re: High velocity Ib/c's

From: Peter Nugent (nugent@panisse.lbl.gov)
Date: Thu May 01 2003 - 12:08:28 PDT

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    Hi all,

    Andy wanted to know about high-velocity Ib/c's (the ones associated w/
    GRB's) and how they looked photometrically compared to a Ia at that z of
    our 2 in question. Suffice it to say they are not a whole lot different
    than normal Ib/c's and thus my previous statement applies to these types
    of SNe as well. At peak in B, both SNe 1998bw and 2002ap had colors of B-V
    > 0.4 magnitudes and declined linearly after that, very much redder and
    unlike a Ia. At late times (+50 days) these objects look exactly like
    their low velocity counterparts.

    Cheers,

    Peter 

    -- 
Peter E. Nugent
Staff Computational Scientist - Scientific Computing Group - NERSC
Lawrence Berkeley National Laboratory
M.S. 50F-1650 - 1 Cyclotron Road - Berkeley, CA, 94720-8139
Phone:(510) 486-6942 - Fax:(510) 486-5812
E-mail: penugent@LBL.gov - Web: http://supernova.LBL.gov/~nugent

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