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Atmospheric Characterization via Broadband Color Filters on the PLAnetary Transits and Oscillations of stars (PLATO) Mission

Grenfell, John Lee and Godolt, Mareike and Cabrera Perez, Juan and Carone, Ludmila and Garcia Munoz, A. and Kitzmann, D and Smith, Alexis M S and Rauer, H (2020) Atmospheric Characterization via Broadband Color Filters on the PLAnetary Transits and Oscillations of stars (PLATO) Mission. Experimental Astronomy, 50, pp. 1-49. Springer. doi: 10.1007/s10686-020-09660-1. ISSN 0922-6435.

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Official URL: https://link.springer.com/article/10.1007%2Fs10686-020-09660-1


We assess broadband color filters for the two fast cameras on the PLAnetary Transits and Oscillations of stars (PLATO) space mission with respect to exoplanetary atmospheric characterization. We focus on Ultra Hot Jupiters and Hot Jupiters placed 25pc and 100pc away from the Earth and warm Super-Earths placed 10pc and 25pc away. Our analysis takes as input literature values for the difference in transit depth between the broadband lower (500-675 nm) wavelength interval (hereafter referred to as” blue“) and the upper (675-1125nm) broadband wavelength interval (hereafter referred to as” red“) for transmission, occultation and phase curve analyses. 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 transit depth between the two spectral intervals. Results suggest that bulk atmospheric composition and planetary geometric albedos could be detected for (Ultra) Hot Jupiters up to ~ 100pc (~25pc) with strong (moderate) Rayleigh extinction. Phase curve information could be extracted for Ultra Hot Jupiters orbiting K and G dwarf stars up to 25pc away. For warm Super-Earths, basic atmospheric types (primary and water-dominated) and the presence of sub-micron hazes in the upper atmosphere could be distinguished for up to a handful of cases up to ~ 10pc.

Item URL in elib:https://elib.dlr.de/137308/
Document Type:Article
Title:Atmospheric Characterization via Broadband Color Filters on the PLAnetary Transits and Oscillations of stars (PLATO) Mission
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Cabrera Perez, JuanUNSPECIFIEDhttps://orcid.org/0000-0001-6653-5487UNSPECIFIED
Garcia Munoz, A.Zentrum fuer Astronomie und Astrophysik, Technische Universitaet Berlin, Germanyhttps://orcid.org/0000-0003-1756-4825UNSPECIFIED
Kitzmann, DCenter for Space and Habitability (CSH), Universität Bern, Sidlerstrasse 5, 3012 Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Smith, Alexis M SUNSPECIFIEDhttps://orcid.org/0000-0002-2386-4341UNSPECIFIED
Date:22 July 2020
Journal or Publication Title:Experimental Astronomy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-49
Keywords:PLATO; color filters; atmospheres; composition; haze; albedo
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben Planetary Evolution and Life (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Deposited By: Grenfell, John Lee
Deposited On:09 Nov 2020 15:32
Last Modified:23 Oct 2023 12:45

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