Key Steps in Processing CCD Photometric Data to Detect Transits of Earth-Size Planets

Details Key Steps in Processing CCD Photometric Data to Detect Transits of Earth-Size Planets Key Steps in Processing CCD Photometric Data to Detect Transits of Earth-Size Planets

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000dps....32.3204j&link_type=abstract

American Astronomical Society, DPS Meeting #32, #32.04; Bulletin of the American Astronomical Society, Vol. 32, p.1052

Astronomy and Astrophysics

Astronomy

Scientific paper

We have performed end-to-end laboratory simulations to demonstrate the capability of differential photometry under realistic operating conditions to detect transits of Earth-size planets orbiting solar-like stars. Data acquisition and processing were conducted using the same methods planned for the proposed Kepler Mission. These included performing aperture photometry on large-format CCD images of an artificial star field obtained without a shutter at a readout rate of 1 megapixel/sec, detecting and removing cosmic rays from individual exposures and making the necessary corrections for nonlinearity and shutterless operation in the absence of darks. We will discuss the image processing tasks performed to obtain raw photometry, and the data processing and analysis tasks conducted to correct for systematic errors such as image motion to obtain lightcurves from the raw data and to characterize the detectability of transits. These simulations demonstrate that a system-level differential photometric precision of 10-5 on 6.5-hour intervals can be achieved under realistic conditions. This work was supported with funding from the NASA Discovery Program, NASA Origins Program and NASA Ames Research Center.

Affiliated with

Also associated with

No associations

Rating

Key Steps in Processing CCD Photometric Data to Detect Transits of Earth-Size Planets 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 Key Steps in Processing CCD Photometric Data to Detect Transits of Earth-Size Planets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key Steps in Processing CCD Photometric Data to Detect Transits of Earth-Size Planets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-866806