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Special Exoplanet Science Seminar

Toward a Uniform Reduction of all Spitzer IRAC Time Series Observations
Presented by Jessica Krick
California Institute of Technology

Thursday, May 3, 2018
1:00 P.M. in 169-336

With a goal of comparative exoplanet science, I will discuss steps taken to uniformly reduce systematics from Spitzer IRAC time series observations and compile all observations into a single database for the exoplanet community. Observing a large population of planets allows us to characterize exoplanet atmospheres and the correlations between those atmospheres and the planet's physical properties. The Spitzer archive is rich with exoplanet observations, totaling over 1500 different observations and growing. Now that the community has gathered this great resource, I will describe efforts to understand and calibrate IRAC to achieve the best possible exoplanet science. This includes using calibration data to generate a map of the intrapixel gain function on 1/100th of a pixel scales and using powerful machine learning algorithms to remove systematics. This reduced data, and all seemingly relevant information, has been incorporated into a single IRAC exoplanet database with around 70 million photometry entries. JWST provides the next challenge in this series of work toward uniform reduction and ensembles of sources.

JPL Contact: If you would like to meet with the speaker, please contact Mark Swain.

SVCP Astrophysics

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