SN 1986G Ia in NGC 5128 (S0)
OBJ: SN 1986G Ia in NGC 5128 (S0). In Leda it is
NGC 5128 (Leda).
DISCOVERY: 1986may3.5 UT by Evans (1986)
CfA List of Supernovae.
MAX: 1986may11.0 +/- 1 (JD 2446561.5) in B according to {phillips1987}.
See the US Navy Observatory Julian Date Converter.
This day of the year 131.
SUPERNOVA of the YEAR: 7.
SPECTROSCOPY LOG:
Spectrum Date Phase relative to Bmax Wavelength Range
{phillips1987} 1986may05.1 -5.9 4796.--7192. (observed)
{phillips1987} 1986may06.1 -4.9 4796.--7192. (observed)
{cristiani1992} 1986may07 -3.8 3403.42431641--7176.42431641 (observed)
{phillips1987} 1986may08.15 -2.8 3600.--7162. (observed)
{cristiani1992} 1986may09 -2.0 3650--7094 (observed)
{cristiani1992} 1986may10 -1.0 3650--7094 (observed)
{phillips1987} 1986may11.3 0.3 3555.9998--6637.9996459 (observed)
{cristiani1992} of may11 may be slightly better.
{cristiani1992} 1986may12 1.0 3650--7094 (observed)
{phillips1987} 1986may13.1 2.1 3698.--5265. (observed)
{phillips1987} 1986may15.3 4.3 4374.--6330. (observed)
{phillips1987} 1986may17.0 6.0 5991.--7012. (observed)
REF:
CfA Supernova Archive, but they
have no SN 1986G spectra.
citet{conley2006} General value
of 19.4 days for Ia rise time in B.
citet{cristiani1992} Photometry and spectra.
citet{phillips1987} Photometry and spectra.
SUSPECT Index.
SUSPECT Index: SN 1986G Ia.
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 552 +/- 5 km/s and
NGC 5128 (Leda).
I'll trust Leda just for consistency.
not dereddened ??? (Galactic foreground .50/4=.125
NGC 5128 (Leda).
Schlegel et al. (1998).
not smoothed ????, not photometric ????
Derived maximum in some band is (see above).
COMMENT:
OBS:
Date: 1986may17.0 (JD ) with 1986may11.0 (JD 2446561.5) for B maximum gives:
day = - 2446561.5 =
day = 6.0
For consistency we always use rest phase and for explicitness to more digits than are significant.
observer phase = 6.0000000000
rest phase = 5.9889726615
&specnamelist
aname='sn1986g Ia 1986_05_17'
ebv=.125 ! This is foreground. {phillips1987} suggests total ebv = 0.82 +/- .05, but this is really uncertain.
epoch=5.9889726615 ! This parameter needs to updated for the particular spectrum.
idifmake=0
iformat=1 ! I suppose.
ismooth=0
itick=4
itickln=4
scale_flux=1.d-24
t_rise=19.4d0 ! From {conley2006}
v_helio=552.
ymin2=4.5e-14
ymax2=14.e-14
ymin3=.45
ymax3=1.55
wlammin1=5991.
wlammax1=7012.
wlammin2=5991.
wlammax2=7012.
wlammin3=5991. ! The ends may be fine.
wlammax3=7012.
/
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.
image = may17.imh
OBJ: SN Ia 1986g in NGC 5128
DATE: May 17 1986. Bmax was on May 11 1986 and so using the
18 day rule, this is 24 days after explosion.
86G may well have had a short rise time judging from its
relatively faster decline rate (Phillips 1993), but we
won't bother with that complication.
OBS: CTIO
REP: F_lambda vs. lambda (ang)
COR: not derreddened or deredshifted (heliocentric velocity 547 km/s
from Asiago), not in absolute units.
REF: Phillips et al. 1987, PASP, 99, 592
COMMENT: Provided by Mark Phillips.
DAY:
24.
END:
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