Exposure Time Calculations for Calibrating of Vega and G191-B2B in the Optical and Near-Infrared: Ground-based, Airborne, Balloon-based, and Rocket-borne Experiments

Details Exposure Time Calculations for Calibrating of Vega and G191-B2B in the Optical and Near-Infrared: Ground-based, Airborne, Balloon-based, and Rocket-borne Experiments Exposure Time Calculations for Calibrating of Vega and G191-B2B in the Optical and Near-Infrared: Ground-based, Airborne, Balloon-based, and Rocket-borne Experiments

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.6707a&link_type=abstract

American Astronomical Society Meeting 205, #67.07; Bulletin of the American Astronomical Society, Vol. 36, p.1457

Astronomy and Astrophysics

Astronomy

Scientific paper

For SNAP to succeed the science program requires an accuracy in supernova color determination over the wavelength range 0.35-1.7 microns of 2% in the optical and 3% in the near infrared.
We explore the possibility of the spectrophotometric calibration of standard stars for SNAP mission in the optical and near infrared using 5 different programs. It is important to understand the impact of different calibration programs in the estimated exposure time calculation and the estimated signal to noise (SNR). We have calculated the exposure time required for imaging and spectroscopic observations of spectrophotometric standard stars (Vega and HST standard G191-B2B) using SNAP detectors and filters at specified seeing, airmass, and sky conditions at either ground/space bases.

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