SN 2005gj Ia/IIn in ???
OBJ: SN 2005gj Ia/IIn in ???. In Leda it is
???.
DISCOVERY: 2005sep26 UT (JD 2453639.5) by {barentine2005;Frieman2005}
MAX: 2005oct26 (JD 2453670) in V according to {aldering2006}.
See the US Navy Observatory Julian
Date Converter.
This day of the year 299.
SUPERNOVA of the YEAR: 192.
REAMDE & SPECTROSCOPY LOG from someone:
Notes:
* Naming convention: a spectrum is in the "observer frame" if the
wavelength is directly from the arc-lamps calibration and has not been
corrected by redshift. Spectra in the "rest-frame" have been corrected
by the redshift of the host galaxy of SN2005gj: z=0.0616 (Aldering et
al. 2006).
* All the spectra were corrected to have the g-r color and r magnitude
consistent within 1% with the photometry at a given epoch, thefore the
absolute flux calibration in the region ~4000-7000 Angstroms (observer
frame) should be pretty good. Outside this region the absolute/relative
calibration is probably uncertain to 5% or more.
* The spectra have been de-reddened by the Galactic reddening in the
line of sight: E(B-V)=0.121 mag (Schlegel, Finkbeiner & Davis 1998). No
host galaxy reddening correction has been applied. We think that the
host galaxy reddening is very small because the Na D doublet is not
detected at the redshift of the host in any of the higher resolution
spectra. Aldering et al. (2006) arrive to the same conclusion.
* Spectra obtained with DIS, ISIS, ModSpec, EMMI, WFCCD, CCDS and LDSS-3
have been corrected to minimize contamination from telluric features,
whereas the spectra from CCDS have not been corrected. The main telluric
features are at 6470, 6495, 6770, 7160 Angstroms in the rest-frame. Even
some of the spectra that have been corrected by telluric lines have some
residuals, therefore it might be good to avoid the regions around the
telluric features for modeling.
* The spectrum obtained with LDSS-3 (sn05gj_25.txt) is a composite of
four different spectra obtained with different gratings (instrument
setup). The composite has been put together by eye, adjusting the
overall flux calibration between one spectrum and the next to come to
relatively good agreement, however, this is far from perfect. Also the
spectrum has some obvious cosmic ray hits that have not been corrected for.
# Spectra of SN2005gj
#
# Columns:
# (1) File name
# (2) Julian Date - 2,453,000 in days
# (3) Epoch: rest-frame days since the time of explosion (JD 2,453,637.92) 2005sep24.42
# (4) Instrument. The telescopes (instruments) used are: MDM-2.4m (CCDS),
# APO-3.5m (DIS), WHT-4.2m (ISIS), LCO-2.5m (ModSpec and WFCCD),
# NTT-3.6m (EMMI), LCO-6.5m (LDSS-3)
# (5) Range in Angstroms
# (6) Resolution in Angstroms: average resolution obtained from the
# FWHM of arc-lamp lines
# (7) Total exposure time in seconds
#
#
#######################################################################
# (1) (2) (3) (4) (5) (6) (7)
#######################################################################
sn05gj_1.txt 644.92 6.6 CCDS 3850 - 7308 15 1200 2005oct01.42 zcorr
sn05gj_2.txt 646.95 8.5 DIS 3824 - 10192 7 1800 2005oct03.45 zcorr
sn05gj_3.txt 650.84 12.2 DIS 3600 - 9597 7 1000 2005oct07.34 zcorr
sn05gj_4.txt 655.87 16.9 CCDS 3823 - 7283 15 1800 2005oct12.37 zcorr
sn05gj_5.txt 665.92 26.4 CCDS 3883 - 7341 15 2700 2005oct22.42 zcorr
sn05gj_6.txt 668.83 29.1 CCDS 3886 - 7346 15 2700 2005oct25.33 zcorr
sn05gj_7.txt 676.79 36.6 CCDS 3882 - 7338 15 3600 2005nov02.29 zcorr
sn05gj_8.txt 684.73 44.1 ISIS 3924 - 8901 4 1800 2005nov10.23 zcorr
sn05gj_9.txt 686.79 46.0 CCDS 3858 - 7315 15 2700
sn05gj_10.txt 698.67 57.2 ModSpec 3780 - 7290 7 2700 2005nov24.17 nozcorr
sn05gj_11.txt 699.67 58.2 ModSpec 3780 - 7290 7 2700
sn05gj_12.txt 700.76 59.2 CCDS 3933 - 7391 15 2700
sn05gj_13.txt 702.73 61.1 CCDS 3856 - 7310 15 2700
sn05gj_14.txt 712.73 70.5 CCDS 3831 - 7286 15 2700 2005dec08.23 zcorr
sn05gj_15.txt 722.71 79.9 EMMI 4000 - 10200 9 2700 2005dec18.21 zcorr
sn05gj_16.txt 724.66 81.7 WFCCD 3800 - 9235 6 2700
sn05gj_17.txt 725.65 82.6 WFCCD 3800 - 9235 6 2700 2005dec21.15 nozcorr
sn05gj_18.txt 726.66 83.6 WFCCD 3800 - 9235 6 3600
sn05gj_19.txt 727.67 84.5 WFCCD 3800 - 9235 6 3600
sn05gj_20.txt 728.67 85.5 WFCCD 3800 - 9235 6 3600
sn05gj_21.txt 729.67 86.4 CCDS 3915 - 7373 15 2700
sn05gj_22.txt 737.70 94.0 CCDS 3909 - 7368 15 2700 2006jan02.20 zcorr
sn05gj_23.txt 751.60 107.1 EMMI 3200 - 10200 9 2700 2006jan16.10 zcorr
sn05gj_24.txt 755.62 110.9 CCDS 3844 - 7299 15 3600
sn05gj_25.txt 759.61 114.6 LDSS-3 3788 - 9980 3 3600
sn05gj_26.txt 799.52 152.2 WFCCD 3800 - 9235 6 1200 2006mar05.02 nozcorr
#######################################################################
REF:
citet{barentine2005} Discovery.
citet{conley2006} General value
of 19.4 days for Ia rise time in B for SNe Ia, but it's not much use for SN 2005gj.
SUSPECT Index.
SUSPECT
Index: SN 2005gj Ia. A dead link so for.
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: deredshifted ??? (heliocentric velocity 18467 km/s and
???(Leda).
I'll trust Leda just for consistency.
not dereddened ??? (Galactic foreground .121
???(Leda).
Schlegel et al. (1998).
not smoothed ????, not photometric ????
COMMENT:
OBS:
Date: 2005oct (JD ) with 2005oct13.92 (JD 2453657.42) for estimated B maximum gives:
day = - =
But we want relative epoch in rest frame days. So use the table.
&specnamelist
aname='sn2005gj Ia 2005_10_'
ebv=.121 ! This is foreground.
epoch= ! This parameter needs to updated for the particular spectrum using rest-frame days.
iformat=1 ! This has to be checked for every spectrum.
itick=2
itickln=4
! scale_flux=1.d-14
t_rise=19.4d0 ! From {conley2006}
v_helio=18467.
ymin2=1.e-16
ymax2=10.e-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.
FITS: Fits format information from the observers if there is any.
END:
