# ASASSN-13ch magnitudes from Swift UVOT # generated Fri Oct 16 12:03:54 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 0.887164 0.283242 # B 1.80980 0.395117 # U 0.994595 0.219959 # UVW1 0.399712 0.0595570 # UVM2 0.210084 0.0222011 # UVW2 0.342338 0.0381951 # # 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 56532.7046 18.782 0.225 19.477 11.090 0.275 0.057 3.0 0.0110 314.73 319.78 UVW2 56534.0436 18.745 0.218 19.490 11.090 0.285 0.057 3.0 0.0110 314.73 319.78 UVW2 56536.6081 18.636 0.215 19.416 11.090 0.314 0.062 3.0 0.0110 277.11 52041.00 UVW2 56540.3181 18.902 0.211 19.661 11.090 0.246 0.048 3.0 0.0110 496.82 504.78 # UVM2 55202.6607 NULL NULL 20.263 10.558 0.014 0.014 3.0 0.0110 5156.20 53476.29 UVM2 55206.5793 NULL NULL 20.202 10.558 0.012 0.015 3.0 0.0110 3089.07 23382.35 UVM2 56532.7090 NULL NULL 19.252 10.557 0.066 0.033 3.0 0.0110 247.17 251.13 UVM2 56534.0500 NULL NULL 19.699 10.557 0.060 0.023 3.0 0.0110 599.63 609.24 UVM2 56536.6101 NULL NULL 19.225 10.557 0.098 0.036 3.0 0.0110 236.44 52020.32 UVM2 56540.3248 NULL NULL 19.498 10.557 0.037 0.025 3.0 0.0110 385.61 391.79 # UVW1 56532.6998 17.251 0.123 19.016 11.154 1.191 0.135 3.0 0.0110 157.25 159.77 UVW1 56534.0702 17.265 0.102 19.313 11.153 1.175 0.110 3.0 0.0110 290.53 5596.50 UVW1 56536.6059 17.354 0.135 18.952 11.154 1.083 0.135 3.0 0.0110 137.32 51969.43 UVW1 56538.2415 17.247 0.122 19.057 11.153 1.195 0.134 3.0 0.0110 155.62 158.12 UVW1 56540.3106 17.403 0.116 19.168 11.156 1.034 0.110 3.0 0.0110 248.79 252.78 # U 56532.7013 15.504 0.071 18.629 12.088 13.625 0.895 3.0 0.0110 78.51 79.77 U 56534.0402 15.349 0.068 18.743 12.072 15.712 0.984 5.0 0.0110 78.50 79.76 U 56536.6065 15.582 0.074 18.600 12.085 12.683 0.867 3.0 0.0110 68.42 51934.99 U 56540.3128 15.797 0.070 18.870 12.079 10.406 0.669 3.0 0.0110 123.79 125.78 # B 56532.7023 15.879 0.065 19.007 12.896 19.608 1.182 3.0 0.0110 78.52 79.78 B 56534.0412 15.871 0.065 19.114 12.868 19.746 1.175 3.0 0.0110 78.51 79.77 B 56536.6070 15.805 0.066 18.956 12.891 20.980 1.277 3.0 0.0110 68.45 51934.95 B 56540.3144 15.889 0.062 19.200 12.877 19.423 1.101 3.0 0.0110 123.79 125.78 # V 56532.7070 15.837 0.083 18.190 11.624 6.624 0.503 3.0 0.0110 78.51 79.77 V 56534.0459 15.914 0.084 18.212 11.621 6.169 0.480 3.0 0.0110 78.52 79.78 V 56536.6091 15.663 0.081 18.106 11.628 7.776 0.581 3.0 0.0110 68.45 51935.03 V 56540.3218 15.649 0.070 18.309 11.622 7.874 0.508 3.0 0.0110 123.79 125.78 #