Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..688b&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, June 1990, p. 688-697. Research supported by the U
Astronomy and Astrophysics
Astronomy
14
Astrometry, Astronomical Photometry, Charge Coupled Devices, Dimensional Stability, Power Spectra, Spaceborne Astronomy, Time Series Analysis
Scientific paper
The sun exhibits periodic and quasi-periodic variability in its total luminosity, which provides information about its internal structure and dynamics. Variability ranges from a few minutes to many-year time scales, with amplitudes as small as a few ppm in the milliHz band. Extension of this analysis to a large sample of outer stars would be interesting: a panoramic detector such as a CCD could record many stars at once. To meet this objective, a ppm time-series differential precision is required. Laboratory CCD photometric measurements presented here are promising for such an instrument. Normalizing the response from a portion of the CCD area removes most of the individual-frame variability. When a trend attributed to a thermal transient in the CCD dewar is removed, the individual-frame photometric precision is about 0.0001, limited by photoelectron counting statistics. The time-series power spectrum is flat within the desired frequency domain. Analysis of the dimensional stability of the CCD within the same data set indicates better than ppm performance, when first-order bulk motion and magnification changes are removed.
Booth Corwin H.
Buffington Andrew
Hudson Hugh S.
No associations
LandOfFree
A laboratory measurement of CCD photometric and dimensional stability does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A laboratory measurement of CCD photometric and dimensional stability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A laboratory measurement of CCD photometric and dimensional stability will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-988510