# Units: # "lambda" is in Angstroms # "pass" is the contribution to the detector signal per photon # # Bandpass Name(s): [SPECIFY] # # Instrument: GOODS (ACS+ISAAC) # # Determined by: GOODS team (sent by Lexi Moustakas) # # Date of determination: 2004? # # Meaning of/Reason for default column: Only available # # Notes: # # From L. Moustakas: # # "This page provides access to the nominal bandpass functions used for # GOODS imaging data. The bandpass files are simple ascii tables with # names *.bp ("bp" = "bandpass"), where * is some descriptive name for the # filter. The first column gives wavelength in Angstroms (regardless of # the original source for the information), and the second column gives # the bandpass transmission. To the extent possible, the transmission # values are absolutely normalized, and include as many elements of the # total system throughput (including filter, detector QE, optics, and # sometimes atmospheric transmission where important) as possible. In some # cases (e.g., Spitzer/MIPS), the only bandpass functions available were # pre-normalized to a peak value of 1, and so do not record the actual # total throughput. # # In many cases, a fair amount of effort has gone into deriving the # appropriate bandpass functions from various throughput components. # However, in some cases there is uncertainty about some of the throughput # elements, or the appropriate procedures for combining them. The links # from the first column of the table below provide information about where # the bandpass functions were obtained, or how they were constructed." # # Michael Blanton # 2005-04-26 #