# SN2019cad magnitudes from Swift UVOT # generated Wed Dec 2 07:36:55 CST 2020 using version 2015.1 # of Peter Brown's photometry pipeline # and version Swift_Rel4.5(Bld34)_27Jul2015 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 # # There is no galaxy subtraction, and no SN visible above the galaxy background. # These measurements of the SN+galaxy should be considered upper limits. # The original are commented out. # # Filter MJD[days] Mag MagErr 3SigMagLim 0.98SatLim[mag] Rate[c/s] RateErr[c/s] Ap[arcsec] Frametime[s] Exp[s] Telapse[s] # #UVW2 58611.1371 18.891 0.132 20.801 11.085 0.249 0.030 3.0 0.0110 622.35 17494.60 # #UVM2 58611.1416 18.970 0.127 20.930 10.555 0.142 0.017 3.0 0.0110 1044.99 17646.76 # #UVW1 58611.1335 19.099 0.180 20.245 11.146 0.217 0.036 3.0 0.0110 366.49 17407.62 # #U 58611.1347 18.548 0.162 19.824 12.055 0.826 0.123 3.0 0.0110 123.31 17301.60 # #B 58611.1353 18.502 0.119 20.198 12.841 1.751 0.192 3.0 0.0110 123.34 17300.69 # #V 58611.1389 17.848 0.149 19.213 11.609 1.039 0.142 3.0 0.0110 123.29 17286.71 # # UVW2 58611.1371 NULL NULL 18.891 11.085 0.249 0.030 3.0 0.0110 622.35 17494.60 # UVM2 58611.1416 NULL NULL 18.970 10.555 0.142 0.017 3.0 0.0110 1044.99 17646.76 # UVW1 58611.1335 NULL NULL 19.099 11.146 0.217 0.036 3.0 0.0110 366.49 17407.62 # U 58611.1347 NULL NULL 18.548 12.055 0.826 0.123 3.0 0.0110 123.31 17301.60 # B 58611.1353 NULL NULL 18.502 12.841 1.751 0.192 3.0 0.0110 123.34 17300.69 # V 58611.1389 NULL NULL 17.848 11.609 1.039 0.142 3.0 0.0110 123.29 17286.71 #