Mahmoudreza Oshagh (University Goettingen)

Impact of stellar surface inhomogeneities on the determination of exoplanet's parameters
When Nov 15, 2016 from 02:00 PM to 03:00 PM
What
  • Special Seminar
  • Colloquium
Where SH, Lecture hall
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Stellar surface inhomogeneities can cause difficulties in detecting and accurately characterizing the planetary systems through spectroscopic and photometric observations. I will discuss how these inhomogeneities can lead to inaccurate estimation of planetary parameters (e.g., the planetary mass, planet's radius, orbital inclination, and spin-orbit angle). I will also talk about how the stellar active regions can affect the transmission spectroscopy’s measurements and how easily can mimic the signature of Rayleigh scattering in the planetary atmosphere.