SN 2003cg Ia in NGC 3169
OBJECT: SN 2003cg Ia in NGC 3169 (Sa galaxy) which in Leda is
NGC 3169 (Leda).
DISCOVERY: 2003mar21.51 UT by Itagati & Arbour
MAXIMUM: Bmax 2003mar31.40 (9h 36m) (MJD 52729.40 +/- 0.07) (elias-rosa2006, p. 1893).
Note that Modified Julian Date (MJD) is given by
MJD=JD-2400000.5 (Julian Date).
For some three centuries following 1858nov17.00 UT, the Julian day lies between 2400000 and 2500000.
The MJD drops those first "24" digits and gets rid of that annoying half day thing.
Thus JD 2452729.90 in B.
See the US Navy Observatory Julian Date Converter.
This day of the year 89.
SUPERNOVA of the YEAR: M = 85.
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 core normal (CN) SN Ia.
REFERENCES:
CfA List of Supernovae
where SN 2003cg is noted.
CfA Supernova Archive
For SN 2003cg, this has 0 spectra and 0 photometry.
conley2006 General value
of 19.4 days for Ia rise time in B.
elias-roas2006 Specifically on SN 2003cg
with photometry and 25 optical spectra and 10 IR spectra.
The Bmax is given on p. 1893.
paturel2003 (Leda) Leda refererence.
SUSPECT Index.
SUSPECT Index: SN 2003cg Ia.
There are 25 spectra all from elias-rosa2006 and this is the complete set of optical spectra.
None of the elias-rosa2006 IR spectra are then.
There is no great picture of
Fritz Zwicky (Wikipedia).
Just say Fritz Zwicky aloud and you can tell he's an up-to-date person.
CORRECTIONS: Heliocentric velocity 1240 +/- 7 km/s (2007jul01) from
NGC 3169 (Leda).
Galactic foreground 0.13/4=.0325 reddening from
NGC 3169 (Leda).
But but derived from
Schlegel et al. (1998)
OBSERVATIONS: From
1) SUSPECT: the complete set of elias-rosa2006 spectra.
2) Eddie Baron: none.
3) David Branch /home/branch/synow/03cg: just the elias-rosa2006 spectra.
SPECTRUM LOG:
MJD times for the SN 2003cg spectra of elias-rosa2006.
Bmax from elias-rosa2006 where the MJD Bmax is MJD 52729.40 +/- 0.07.
As far as I know all the elias-rosa spectra from SUSPECT
are in the observer frame.
These dates are only for a subset of the elias-rosa spectra on SUSPECT.
MJD Bmax Heliocentric velocity (Leda, 2007jul01)
52729.40 1240.
Heliocentric velocity Z redshift
1240.0000000000 0.0041361948
Index JD of some kind Observer phase Rest phase
1 52720.9900000000 -8.4100000000 -8.3753578884 ! elias-rosa2006 2003mar22 4227.389--6981.252398
2 52721.8900000000 -7.5100000000 -7.4790651298 ! elias-rosa2006 2003mar23 3700--9347.830617
3 52722.5600000000 -6.8400000000 -6.8118249651 ! elias-rosa2006 2003mar24 3650--9133.492136
4 52728.9000000000 -0.5000000000 -0.4979404214 ! elias-rosa2006 2003mar30 3750--9193.48023
5 52736.8700000000 7.4700000000 7.4392298961 ! elias-rosa2006 2003apr07 3700--7751.456224
6 52748.8800000000 19.4800000000 19.3997588188 ! elias-rosa2006 2003apr19 3800--8049.301385
7 52752.9100000000 23.5100000000 23.4131586155 ! elias-rosa2006 2003apr23 3800--7748.08698 (on SUSPECT to 7765.21534)
&specnamelist
aname='sn2003cg Ia 2003_03_'
ebv=.0325 ! E(B-V)=1.33 with R_V=1.8 according to elias-roas2006.
epoch= ! This parameter needs to updated for the particular spectrum.
idifmake=0
iformat=1 ! I guess so.
ismooth=0 ! Smoothing?
itick=2
itickln=4
t_rise=19.4d0 ! conley2006: just an average rise time.
v_helio=1240.
ymin2=.2d-16
ymax2=100.d-16
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:
