Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..713..161s&link_type=abstract
THE SEARCH FOR OTHER WORLDS: Fourteenth Astrophysics Conference. AIP Conference Proceedings, Volume 713, pp. 161-164 (2004).
Astronomy and Astrophysics
Astrophysics
7
Photometric And Spectroscopic Detection, Coronographic Detection, Interferometric Detection, Photometric, Polarimetric, And Spectroscopic Instrumentation
Scientific paper
We present the data, and modeling and analysis results from the photometric monitoring of five planetary transits of HD 209458 using the Fine Guidance Sensors (FGS) onboard the Hubble Space Telescope (HST). We have now included the output from all four FGS photometers in our data reduction and analysis increasing our S/N over our previous results. We have modeled the transits as an opaque spherical planet in a circular orbit about a limb darkened spherical star and simultaneously fit the model to the FGS data and published STIS transit data. The measured light curves show small features, a fraction of the transit depth. Some of these faint bumps and ripples appear to be real. We present an analysis of the FGS transit light curves, showing the results of the model fitting and a search for a possible planetary satellite.
Bennum David
Bruhweiler Fred
Hamilton Douglas P.
Hamilton F.
Hart Michael H.
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