SN 1994D Ia in NGC 4526 (S0)

OBJ:   SN 1994D Ia in NGC 4526 (S0).  In Leda it is
          NGC 4526 (Leda).
DISCOVERY: 1988apr30 by Berkeley Automated supernova search (Perlmutter & Pennypacker)
        CfA Supernova List.
MAX:  1994mar21.0 (JD 2449432.5) in B according to asiago catalog \citet{patat1996}.  
           See the US Navy Observatory Julian Date Converter.
           This day of the year  80.
SUPERNOVA of the YEAR:  4.

COMMENT:

SPECTROSCOPY LOG:

         Spectrum               Date                  Phase relative to Bmax        Wavelength Range
         ? DB files: 94D_12.    1994mar09             -12                           3196--7372  (rest?)
         ?{patat1996}           1994mar10             -10.8                         2989--7149  (observed)
         ?{patat1996}           1994mar11              -9.6                         3485--7144  (observed)
         {patat1996}            1994mar12              -8.7                         3779--8570  (observed)
         ? DB files:  94D_8.    1994mar13              -8                           3944--8787  (rest?)
         {meikle1996}           1994mar14              -7                           3858.74--6816.29 (observed)
         {patat1996}            1994mar16              -4.8                         3331--10270  (observed)
         {patat1996}            1994mar17              -3.8                         2999.15759456--10549.15759456  (observed)
         ? DB files:  94D_n3.   1994mar18              -3                           3120--9900  (rest?)
         ?{patat1996}           1994mar19              -1.8                         3402.35--9132.35  (observed)
         ? DB files:  94D_n3.   1994mar13              -3                           3120--9900  (rest?)
         {meikle1996}           1994mar20              -1                           3007--11116 (observed)
         {patat1996}            1994mar23               2.2                         3466--9204  (observed)
         {meikle1996}           1994apr02              12                           3206--10738 (observed)
         {meikle1996}           1994dec29             283                           3412--9034 (observed)

REF:

       \citet{conley2006} General value
         of 19.4 days for Ia rise time in B.

    {meikle1996}
        % An early-time infrared and optical study of the Type IA supernovae SN 1994D and 1991T.


    {patat1996}
        % The type IA supernova 1994D in NGC 4526: the early phases
        % B max on 1994mar21.

    {richmond1995}
        % UBVRI Photometry of the Type IA SN 1994D in NGC 4526

HEADER: Header Common header information for this supernovae.
        The common header may (or may not) be updated relative to the header information above
        (D. J. Jeffery (2007jan01)).

COR:  not deredshifted ??? (heliocentric velocity 601 +/- 26 km/s and 
        v_hel corrected for CMB radiation 931 km/s from
          Leda:  NGC 4526.
     Actually NED claims the heliocentric velocity is 448 +/- 8 km/s.  So who is right.
     See NED.
     I'll trust Leda just for consistency.
      not dereddened ??? (Galactic foreground .10/4... =.025
     Schlegel et al. (1998).
      not smoothed ????, not photometric ????
      Derived maximum in some band is  (see above).

OBS:  If from David Branch files, we guess about everything. 
      ??? Alex Filippenko group
          Asiago group
          Meikle group

Date: 1994 () with 1994mar21 (80) (JD 2449432.5) for B maximum gives:
      day = - 80 = 



&specnamelist
   aname='sn1994 Ia 1994_03_08'
   ebv=.025
   epoch=-13.          ! This parameter needs to updated for the particular spectrum.
   iformat=1           ! This has to be checked for every spectrum. 
   itick=2
   itickln=4
   t_rise=19.4d0       ! From {conley2006} 
   v_helio=601.    
   ymin2=1.e-17
   ymax2=1.e-12
   ymin3=.3
   ymax3=3.
   wlammin1=1000
   wlammax1=2000
   wlammin2=1000
   wlammax2=2000
   wlammin3=1000
   wlammax3=2000
/




      

Postscript plot of the spectrum.




      

Postscript plot of the spectrum with local normalization.




Information from somewhere. 

FITS: Fits format information from the observers if there is any.

END: