From: Vitaliy Fadeyev (VAFadeyev@lbl.gov)
Date: Thu Feb 12 2004 - 18:19:47 PST
Dear Serena,
attached are two ASCII files with "raw" photometry data
for the 6 epochs of HST followup for sn1999q. The two
filters, F675W and F814W, were used at each epoch. Therefore,
if you apply the K-corrections, you should be able to get
B-V colors from the data at each epoch.
The fluxes in each file are given in e-/sec. The appropriate
Vega zeropoints are 24.1542 for F675W and 23.7472 for F814W.
The discovery data point we got from the IAU Circular
is not included in the raw data files. That point has
rather unclear associated uncertainty, since it is
from the ground-based observations. Unlike the time of max
or stretch determination, we would be directly sensetive
to the photometry error in color determination. If you
strongly prefer to include the discovery point, then we
would have to extrapolate the other bands' lightcurve.
Another aspect of the data I should mention more explicitly
is the fact that the lightcurve fits have a sense of E(B-V)
of the host. For the fit without a constrained time of
the maximum, E(B-V)_Host = 0.095 +- 0.051. For the fit
with time of max constrained to that of Tonry,
E(B-V)_Host = 0.200 +- 0.038.
Incidentally, this is a "hostless" SN, meaning that
we see no trace of the host in the final references.
Let me know if this scheme does not work for you.
Cheers,
vitaliy
# ndata = 6
JD FLUX DFLUX
51210.22 2.883380e+00 8.250681e-02
51216.23 2.039683e+00 7.276728e-02
51223.46 1.364378e+00 6.482067e-02
51230.73 9.237662e-01 5.773603e-02
51237.43 7.188950e-01 5.622737e-02
51244.42 6.455899e-01 5.575247e-02
# ndata = 6
JD FLUX DFLUX
51210.22 2.770819e+00 6.510243e-02
51216.23 2.315569e+00 6.127549e-02
51223.46 1.784607e+00 5.493745e-02
51230.73 1.440527e+00 5.319223e-02
51237.43 1.123834e+00 4.942517e-02
51244.42 8.823840e-01 4.621704e-02
This archive was generated by hypermail 2.1.4 : Thu Feb 12 2004 - 18:19:56 PST