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An Updated Ultraviolet Calibration for the Swift∕UVOT
AIP conference proceedings · 2011 · pp. 373–376
A. A. Breeveld✉(Goddard Space Flight Center)V. La Parola(University College London)S. T. Holland(Goddard Space Flight Center)P. W. A. Roming(Goddard Space Flight Center)N. P. M. Kuin(Southwest Research Institute)M. J. Page(University College London)J. E. McEneryJ. L. RacusinN. Gehrels(Southwest Research Institute)
Abstract
We present an updated calibration of the Swift/UVOT broadband ultraviolet (uvw1, uvm2, and uvw2) filters. The new calibration accounts for the ∼1% per year decline in the UVOT sensitivity observed in all filters, and makes use of additional calibration sources with a wider range of colours and with HST spectrophotometry. In this paper we present the new effective area curves and instrumental photometric zeropoints and compare with the previous calibration.
Atmospheric Ozone and ClimateCalibration and Measurement TechniquesSwiftCalibrationUltravioletRemote sensingBroadbandPhysicsOpticsEnvironmental scienceAstrophysicsGeology
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