Mahmoudreza Oshagh (University Goettingen)

Impact of stellar surface inhomogeneities on the determination of exoplanet's parameters
Wann Am 15.11.2016 von 14:00 bis 15:00
Was
  • Special Seminar
  • Kolloquium
Wo SH, Hörsaal
Termin übernehmen vCal / iCal

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.