München 2019 – wissenschaftliches Programm
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UP: Fachverband Umweltphysik
UP 3: Planetary atmospheres (joint session EP/UP)
UP 3.8: Vortrag
Dienstag, 19. März 2019, 18:15–18:30, HS 22
Atmospheric Characterization via Broadband Color Filters on the PLAnetary Transits and Oscillations of stars Mission — •John Lee Grenfell1, Mareike Godolt2, Juan Cabrera1, Ludmila Carone3, Antonio Garcia Muñoz2, Daniel Kitzmann4, and Heike Rauer1,2,5 — 1Department of Extrasolar Planets and Atmospheres (EPA), German Aerospace Centre (DLR), Berlin, Germany — 2Centre for Astronomy und Astrophysics (ZAA), Berlin Institute of Technology (TUB), Germany — 3Max-Planck-Institute for Astronomy (MPIA), Heidelberg, Germany — 4Centre for Space and Habitability (CSH), Bern, Switzerland — 5Institute for Geological Sciences, Free University Berlin (FUB), Germany
We assess broadband color filters for the two fast cameras on the PLAnetary Transits and Oscillations of stars space mission with respect to the characterization of exoplanetary atmospheric composition, haze and geometric albedo. We focus on Ultra Hot Jupiters and Hot Jupiters placed 25pc and 100pc away from the Earth and low mass low density planets placed 10pc and 25pc away. Our analysis takes as input literature values for the difference in transit depth between the broadband lower (500-675nm) wavelength interval (hereafter referred to as blue) and the upper (675-1125nm) broadband wavelength interval (hereafter referred to as red) for transmission, reflection and occultation spectroscopy. Planets orbiting main sequence central stars with stellar classes F, G, K and M are investigated. We calculate the signal-to-noise ratio with respect to photon and instrument noise for detecting the difference in the blue and red spectral intervals.