Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aj....122.2118b&link_type=abstract
The Astronomical Journal, Volume 122, Issue 4, pp. 2118-2128.
Astronomy and Astrophysics
Astronomy
75
Infrared Radiation, Space Vehicles: Instrumentation, Standards, Ultraviolet: General
Scientific paper
With photometric repeatability in the 0.2%-0.4% range and wavelength coverage from 1150 to 10,200 Å, the Space Telescope Imaging Spectrograph (STIS) low-dispersion spectrophotometry provides excellent absolute flux standards. STIS observations of 19 stars are used to update the database of Hubble Space Telescope standard stars with absolute fluxes that are based on the white dwarf pure hydrogen scale. Uncertainties in the STIS absolute flux calibration range from 4% in the far-UV to 2% at longer wavelengths. The relative and absolute fluxes of our composite standards in the IR are verified by the Near Infrared Camera and Multi-Object Spectrograph (NICMOS) observations and by ground-based IR photometry.
Bohlin Ralph Charles
Calzetti Daniela
Dickinson Mark Everett
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