The Ultraviolet Calibration of the Hubble Space Telescope. III. A Correction for the Change in Sensitivity of the LWR Camera on IUE
Abstract
The absolute photometric calibration of the Hubble Space Telescope (HST) in the UV will be based on low-dispersion spectra obtained by IUE. Therefore, these data must be corrected for the substantial changes observed in the sensitivities of the IUE SWP and LWR cameras. A previous paper specified the correction in 5 A bins for SWP through 1986.36. This paper details the corrections for LWR and provides an update for SWP through 1987.36. A total of 764 LWR spectra of five standard stars are analyzed to derive the annual change spectra for the the low-dispersion observing modes.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- November 1988
- DOI:
- 10.1086/191297
- Bibcode:
- 1988ApJS...68..487B
- Keywords:
-
- Hubble Space Telescope;
- Stellar Spectrophotometry;
- Ultraviolet Spectra;
- Calibrating;
- Long Wave Radiation;
- Short Wave Radiation;
- Tables (Data);
- Astronomy;
- INSTRUMENTS;
- SPECTROPHOTOMETRY;
- ULTRAVIOLET: SPECTRA