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The Swift-UVOT ultraviolet and visible grism calibration
N. P. M. Kuin, W. Landsman, A. A. Breeveld +16
We present the calibration of the Swift UVOT grisms, of which there are two, providing low-resolution field spectroscopy in the ultraviolet and optical bands respectively. The UV g…
An Updated Ultraviolet Calibration for the Swift/UVOT
A. A. Breeveld, W. Landsman, S. T. Holland +3
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 sens…
Faint NUV/FUV Standards from Swift/UVOT, GALEX and SDSS Photometry
Michael H. Siegel, Erik A. Hoversten, Peter W. A. Roming +8
At present, the precision of deep ultraviolet photometry is somewhat limited by the dearth of faint ultraviolet standard stars. In an effort to improve this situation, we present a…
Paper II: Calibration of the Swift ultraviolet/optical telescope
A. A. Breeveld, P. A. Curran, E. A. Hoversten +32
The Ultraviolet/Optical Telescope (UVOT) is one of three instruments onboard the Swift observatory. The photometric calibration has been published, and this paper follows up with d…