Detection and characterization of extrasolar planets using very high precision photometry and infrared interferometry

Details Detection and characterization of extrasolar planets using very high precision photometry and infrared interferometry Detection and characterization of extrasolar planets using very high precision photometry and infrared interferometry

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phdt.........2b&link_type=abstract

PhD Thesis

Other

1

Extrasolar Planets, Spectroscopic Binaries, Transit Photometry, Corot, Infrared Interferometry, Single-Mode Fibers

Scientific paper

Thanks to radial velocity spectroscopy, over a hundred giant exoplanets around solar type stars have been discovered to date (2003). The limits of this technique motivate the use of other methods to obtain a full characterization of the known planets, to detect terrestrial size planets, and to expand our statistical knowledge over a larger population of objects. This thesis deals with two of these complementary techniques, namely transit photometry and long baseline infrared interferometry.
Transit photometry has been studied in the framework of the space mission COROT: we have used a match-filter algorithm to determine (i) the detection efficiency of the instrument as a function of different planetary orbital distributions, and (ii) the histograms of detections vs. the spectral type and the magnitude of the host star. Moreover, we have studied the use of COROT's photometric channels to diagnose false detections, and to reduce stellar variability noise.
With a joint processing of spectroscopic and long baseline interferometric data, a full characterization of double systems can be achieved. We have applied this processing to real observations of spectroscopic binaries, then we have studied the feasibility of the observation of 51 Pegasi-like double systems. Furthermore, we have contributed to the effort to improve precision in infrared interferometry by compiling a catalog of calibrator stars, and by characterizing a prototype 10 um single-mode fiber, a critical component for space missions dedicated to terrestrial planets finding like Darwin/TPF.

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