Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Ariel: Atmospheric Remote-sensing Infrared Exoplanet Large-survey - enabling planetary science across light-years. Definition study report

Tinetti, Giovanna, Haswell, Carole, Lecont, Jeremy, Lagage, Pierre-Olivier, MicelaSarkar, Giusi, Min, Michel, Testi, Leonardo, Turrini, Diego, Vandenbussche, Bart, Osorio, Maria Rosa Zapatero, Eccleston, Paul, Swain, Mark, ESA Study Team, Ariel Mission Consortium, Griffin, Matthew ORCID:, Hargrave, Peter ORCID: and Sarkar, Subhajit 2020. Ariel: Atmospheric Remote-sensing Infrared Exoplanet Large-survey - enabling planetary science across light-years. Definition study report. European Space Agency. Available at:

[thumbnail of Tinetti_et_al_2021_Ariel_Red_Book.pdf] PDF - Published Version
Download (31MB)


Ariel, the Atmospheric Remote-sensing Infrared Exoplanet Large-survey, was adopted as the fourth medium-class mission in ESA's Cosmic Vision programme to be launched in 2029. During its 4-year mission, Ariel will study what exoplanets are made of, how they formed and how they evolve, by surveying a diverse sample of about 1000 extrasolar planets, simultaneously in visible and infrared wavelengths. It is the first mission dedicated to measuring the chemical composition and thermal structures of hundreds of transiting exoplanets, enabling planetary science far beyond the boundaries of the Solar System. The payload consists of an off-axis Cassegrain telescope (primary mirror 1100 mm x 730 mm ellipse) and two separate instruments (FGS and AIRS) covering simultaneously 0.5-7.8 micron spectral range. The satellite is best placed into an L2 orbit to maximise the thermal stability and the field of regard. The payload module is passively cooled via a series of V-Groove radiators; the detectors for the AIRS are the only items that require active cooling via an active Ne JT cooler. The Ariel payload is developed by a consortium of more than 50 institutes from 16 ESA countries, which include the UK, France, Italy, Belgium, Poland, Spain, Austria, Denmark, Ireland, Portugal, Czech Republic, Hungary, the Netherlands, Sweden, Norway, Estonia, and a NASA contribution.

Item Type: Monograph (UNSPECIFIED)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Additional Information: Matthew Griffin, Peter Hargrave and Subhajit Sarkar are members of the Ariel Mission Consortium
Publisher: European Space Agency
Funders: UK Space Agency
Related URLs:
Date of First Compliant Deposit: 6 July 2021
Date of Acceptance: 1 November 2020
Last Modified: 28 Apr 2023 06:25

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics