SN 1983N Ib in (Irr)

OBJ:  SN 1983N Ib in NGC 4214 (Irr).  See 
          Leda:   NGC 4214 (Irr).
DISCOVERY:  ? 
MAX:  1954apr19 in pg from \citet{casebeer2000}.
           This day of the year 110.  Recall 1954 was a leap year.
SUPERNOVA of the YEAR:  1.  Those were the good old days
           when the 1st supernova of the year didn't happen until April.

HEADER:  D. J. Jeffery (2006jan01).

REF:


       
\bibitem[Blaylock et al.(2000)]{blaylock2000}
        Blaylock, M., Branch, D., Casebeer, D., Milliard, J., Baron, E., Richardson, D., \&~ Acheta, C. 
        2000, PASP, 112, 1439
%
        % ADS Reference
        % Mount Wilson and Palomar Photographic Supernova Spectra 
        % This includes SN 1954A Ib.


       
\bibitem[Branch(1972)]{branch1972} Branch, D.  1972, A\&A, 16, 247 
%
%       ADS reference     
        %  The spectrum of the type I supernova of 1954 in NGC 4214. 
        % David confirms He I lines in SN 1954A Ib.  
        % McLaughlin identified them in 1963.

       
\bibitem[Casebeer et al.(2000)]{casebeer2000}
        Casebeer, D., Branch, D., Blaylock, M., Milliard, J., Baron, E., Richardson, D., \&~ Acheta, C. 
        2000, PASP, 112, 1433 
%
        % ADS Reference
        % Lick Observatory Photographic Supernova Spectra
        % This includes SN 1954A Ib with pg maximum estimated as 1954_04_19.


\bibitem[McLaughlin(1963)]{mclaughlin1963} McLaughlin, D. B.  1963, PASP, 75, 133 
%
%       ADS reference     
        %  The spectrum of the type I supernova of 1954 in NGC 4214. 
        % McLaughlin identified them in 1963.
        % This is Dean B. McLaughlin:  a much older namesake of  
        % unrelated astronomer Dean E. McLaughlin.



REP:  F_lambda ??? vs. lambda (ang)  (iformat = 1)
COR:  deredshifted ??? (heliocentric velocity 292 +/- 2 and 
        v_hel corrected for CMB radiation 549 km/s from
  Leda:   NGC 4214 (Irr).
      not dereddened (Galactic foreground .09/4... =.0225
     Schlegel et al. (1998)
      not smoothed, very not photometric,
        This are digitized microphotometer transmission tracings of photographic plates.
      Estimated pg maximum is 2002feb07 (see above).

OBS:  ????

Date: 1954 () with 1954apr19 (110) for pg maximum gives:
      day =  - 110 =  



&specnamelist
   aname='sn1954ap Ib  1954_'
   ebv=.0225
   epoch=          ! This parameter needs to updated for the particular spectrum.
   iformat=1
   itick=4
   itickln=4
   t_rise=20.d0      ! default 
   v_helio=0.        ! 292 km/s, but I think these have already been dereddshifted.  It's pretty small in any case.
   ymin2=.2
   ymax2=2.
   ymin3=.8
   ymax3=1.2
   wlammin1=
   wlammax1=
   wlammin2=
   wlammax2=
   wlammin3=
   wlammax3=
/




      

Postscript plot of the spectrum.




      

Postscript plot of the spectrum with local normalization.




FITS: Fits format information from the compilers. 


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