# SN2014dt magnitudes from Swift UVOT # generated Sat Oct 3 00:41:47 CDT 2015 using version 2015.1 # of Peter Brown's photometry pipeline # and version Swift_Rel4.2(Bld31)_25Nov2013 of HEASOFT # # Data comes from the Swift Data Center # A 5 arcsec aperture is used to measure the counts for the coincidence loss correction, # a 3 or 5 arcsec source aperture (based on the error) was used for the aperture photometry # subtracting off the galaxy count rate in a template image (if available), # and applying an aperture correction as appropriate (based on average psf in Swift CALDB) # and zeropoints from Breeveld et al. (2011) which update Poole et al. (2008) # including a time-dependent sensitivity loss # to put the magnitudes on the UVOT photometric system described in that paper. # The sensitivity correction has been updated based on the 2015 redetermination. # # Brown, P. J., Holland, S. T., Immler, S., et al. 2009, ApJ, 137, 4517 # Brown, P. J., et al. 2014, Ap&SS, submitted # Breeveld, A. A., Landsman, W., Holland, S. T., et al. 2011, in AIP Conf. Proc. 1358, # Gamma-Ray Bursts 2010, ed. J. E. McEnergy, J. L. Racusin, & N. Gehrels # (Melville, NY: AIP), 373; arXiv:1102.4717 # Poole, T. S., Breeveld, A. A., Page, M. J., et al. 2008, MNRAS, 383, 627 # # # # The underlying galaxy had the following count rates # in a 5 arcsec aperture at the source position # (missing filters list 0 but used a background region similar to the SN ): # Galaxy count rates in 5" aperture # V 5.26279 0.330827 # B 9.34172 0.572211 # U 5.51761 0.316949 # UVW1 2.05099 0.0930253 # UVM2 1.07457 0.0475566 # UVW2 1.66824 0.0725135 # # High B-band galaxy count rates # # Filter MJD[days] Mag MagErr 3SigMagLim 0.98SatLim[mag] Rate[c/s] RateErr[c/s] Ap[arcsec] Frametime[s] Exp[s] Telapse[s] # UVW2 56975.4655 19.321 0.413 19.642 11.108 0.167 0.064 3.0 0.0110 1289.67 63766.91 UVW2 56982.8032 19.347 0.451 19.472 11.108 0.163 0.068 3.0 0.0110 791.88 6941.59 UVW2 56987.9204 NULL NULL 19.458 11.108 0.088 0.064 3.0 0.0110 748.55 5483.13 # UVM2 56975.4729 NULL NULL 19.544 10.569 0.047 0.035 3.0 0.0110 1938.55 63969.44 UVM2 56982.7693 NULL NULL 17.289 10.569 0.211 0.173 3.0 0.0110 29.94 30.42 UVM2 56987.9266 NULL NULL 19.375 10.569 0.027 0.038 3.0 0.0110 1130.61 5483.13 # UVW1 56975.4592 18.516 0.240 19.346 11.177 0.371 0.082 3.0 0.0110 773.86 63601.32 UVW1 56982.7684 18.765 0.298 19.284 11.176 0.295 0.081 3.0 0.0110 632.14 11868.36 UVW1 56987.9151 NULL NULL 19.154 11.175 0.205 0.082 3.0 0.0110 449.32 5477.67 # U 56975.4613 16.964 0.114 18.852 12.158 3.553 0.373 3.0 0.0110 257.17 63423.01 U 56982.7698 17.345 0.144 18.816 12.150 2.500 0.331 3.0 0.0110 209.94 11784.36 U 56987.9170 17.456 0.163 18.712 12.143 2.257 0.340 3.0 0.0110 149.07 5276.46 # B 56975.4624 16.769 0.090 19.011 13.138 8.641 0.716 3.0 0.0110 257.21 63421.98 B 56982.7706 17.077 0.107 18.961 13.125 6.504 0.641 3.0 0.0110 198.61 11806.38 B 56987.9180 17.327 0.129 18.883 13.109 5.169 0.612 3.0 0.0110 149.16 5252.17 # V 56975.4686 14.969 0.062 18.250 11.714 14.737 0.848 3.0 0.0110 257.21 63412.73 V 56982.8059 15.265 0.074 17.969 11.711 11.220 0.766 3.0 0.0110 114.42 6540.41 V 56987.9234 15.445 0.074 18.139 11.698 9.510 0.652 3.0 0.0110 149.15 5105.06 #