# CSS081009 magnitudes from Swift UVOT # generated Thu May 18 11:38:35 CDT 2017 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 # V 0.385432 0.192459 # B -0.0843414 0.206118 # U 0.0874176 0.137488 # UVW1 0.0652156 0.0391704 # UVM2 0.0364659 0.0144093 # UVW2 0.0889175 0.0264933 # # There are no known issues with this photometry. # # Filter MJD[days] Mag MagErr 3SigMagLim 0.98SatLim[mag] Rate[c/s] RateErr[c/s] Ap[arcsec] Frametime[s] Exp[s] Telapse[s] # UVW2 54781.2736 NULL NULL 20.118 11.086 0.050 0.027 3.0 0.0110 906.78 17088.57 # UVM2 54781.2767 19.779 0.296 20.075 10.555 0.067 0.018 3.0 0.0110 906.81 17269.02 # UVW1 54781.2804 19.508 0.296 19.789 11.147 0.149 0.041 3.0 0.0110 956.22 17549.92 # U 54781.5442 18.825 0.183 19.622 12.056 0.640 0.108 3.0 0.0110 999.19 17936.10 # B 54781.5469 19.450 0.214 20.025 12.838 0.731 0.144 3.0 0.0110 920.65 17690.27 # V 54781.5413 NULL NULL 18.824 11.615 0.189 0.133 3.0 0.0110 999.07 18157.01 #