SN 1992A Ia in NGC 1380 (S0)
OBJECT: SN 1992A Ia in NGC 1380 (S0). In Leda it is
NGC 1380 (Leda).
DISCOVERY: 1992jan11.16 by Liller (1992).
CfA Supernova List.
MAXIMUM: 1992jan19.2 +/- 1.0 (JD 2448640.7) in B (kirshner1993).
See the US Navy Observatory Julian Date Converter.
This day of the year 19.
SUPERNOVA of the YEAR: 1.
HEADER: Header Common header information for this supernovae.
The common header may (or may not) be updated relative to the header information here
(D. J. Jeffery (2007jan01)).
COMMENTS: A broad line (BL) SN Ia, but not an extreme one. In fact, I'd say it was pretty normal even if not
core normal.
REFERENCES:
CfA List of Supernovae
where SN 1992A is noted.
CfA Supernova Archive
For SN 1992a, this has 23 spectra and 0 photometry.
conley2006 General value
of 19.4 days for Ia rise time in B.
CfA List of Supernovae
where SN 1992A is noted.
kirshner1993 On 92a with HST spectra.
ruiz-lapuente1995 On nebular 92a with HST spectra.
SUSPECT Index.
SUSPECT Index: SN 1992A Ia.
There are 0 SN 1992A spectra, but there are 10 SN 1992ac spectra.
CORRECTIONS: Heliocentric velocity 1846 +/- 12 km/s (2007jul10) from
NGC 1380 (Leda).
Galactic foreground reddening .07/4=.0175
NGC 1380 (Leda).
This is derived from
Schlegel et al. (1998).
OBSERVATIONS: From
1) David Jeffery's old catalog: mine may all be in the CfA supernova archive.
Nope. I seem to have some not in the archive.
2) CfA supernova archive.
3) Eddie Baron: probably all CfA supernova archive spectra.
4) David Branch (/home/branch/synow/92A): probably all CfA supernova archive spectra.
SPECTRUM LOG:
JD times for the SN 1992a spectra of kirshner1993
Bmax from kirshner1993 where the JD Bmax is JD 2448640.7 +/- 1.0 (1992jan19.2).
As far as I know, all the kirshner1993 spectra
are in the observer frame.
JD Bmax Heliocentric velocity (Leda, 2007jul01)
8640.7 1846.
Heliocentric velocity Z redshift
1846.0000000000 0.0061575932
Index JD of some kind Observer phase Rest phase
1 8633.6380000000 -7.0620000000 -7.0187812006 ! kirshner1993 1992jan12.138 4765.439999999998--8342.599999998943
2 8634.5800000000 -6.1200000000 -6.0825461552 ! kirshner1993 1992jan13.08 3315.349--8373.349
3 8635.6100000000 -5.0900000000 -5.0588496617 ! kirshner1993 1992jan14.11 3544.0--7096.940999999912
4 8639.6000000000 -1.1000000000 -1.0932680998 ! CTIO/Cfa sn arch. 1992jan18.1 3541.68--7055.78
5 0.0000000000****************************** ! The time of day of the spectrum
6 0.0000000000****************************** ! is my estimate.
7 8646.0900000000 5.3900000000 5.3570136890 ! kirshner1993 1992jan24.59 1630.2436748749--8120.17
8 0.0000000000****************************** ! This is a mean date for a composite spectrum.
9 8647.5000000000 6.8000000000 6.7583846169 ! CTIO/Cfa sn arch. 1992jan26.1 3540.12--7066.3
10 0.0000000000****************************** ! The time of day of the spectrum
11 0.0000000000****************************** ! is my estimate.
12 8649.5400000000 8.8400000000 8.7859000019 ! kirshner1993 1992jan28.04 3144.286999999999--9885.200080000062
13 8664.5400000000 23.8400000000 23.6941013626 ! CTIO/Cfa sn arch. 1992feb12.04 3645.1--6956.98
&specnamelist
aname='sn1992a Ia 1992_01'
ebv=.0175
epoch= ! This parameter needs to updated for the particular spectrum.
idifmake=0
iformat=1 ! This has to be checked for every spectrum.
ismooth=0
itick=2
itickln=4
t_rise=19.4d0 ! conley2006: just an average value.
v_helio=1846.
ymin2=1.e-15
ymax2=1.e-13
ymin3=.3
ymax3=3.
wlammin1=
wlammax1=
wlammin2=
wlammax2=
wlammin3=
wlammax3=
/
Postscript plot of the spectrum.
Postscript plot of the spectrum with local normalization.
Information from somewhere and someone:
