Explorer of Enceladus and Titan (E<SUP>2</SUP>T): Investigating the habitability and evolution of ocean worlds in the Saturn system - Archive ouverte HAL Access content directly
Conference Papers Year : 2016

Explorer of Enceladus and Titan (E2T): Investigating the habitability and evolution of ocean worlds in the Saturn system

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Giuseppe Mitri
Frank Postberg
  • Function : Author
Jason M. Soderblom
  • Function : Author
Gabriel Tobie
Paolo Tortora
  • Function : Author
Peter Wurz
  • Function : Author
Jason W. Barnes
  • Function : Author
Francesca Ferri
  • Function : Author
Alexander Hayes
Paul O. Hayne
  • Function : Author
Jon Hillier
  • Function : Author
Sascha Kempf
  • Function : Author
Ralph Lorenz
Roberto Orosei
Anastassios Petropoulos
  • Function : Author
Chen-Wan Yen
  • Function : Author
Kim R. Reh
  • Function : Author
Jürgen Schmidt
  • Function : Author
Jon Sims
  • Function : Author
Christophe Sotin
Ralf Srama
  • Function : Author

Abstract

The NASA-ESA-ASI Cassini-Huygens mission has revealed Titan and Enceladus to be two of the most enigmatic worlds in the Solar System. Titan, with its organically rich and dynamic atmosphere and geology, and Enceladus, with its active plume of water vapor and ice laced with organics, salts, and silica nano-particles, both harbouring subsurface oceans, are prime environments in which to investigate the conditions for the emergence of life and the habitability potential of ocean worlds as well as the origin and evolution of unique complex planetary systems. Explorer of Enceladus and Titan (E2T) is a space mission concept dedicated to investigating the evolution and habitability of these Saturnian satellites and is proposed as a medium-class mission led by ESA in collaboration with NASA in response to ESA's M5 Cosmic Vision Call. E2T has a focused state-of-the-art adapted payload that will provide in-situ sampling, high-resolution imaging and radio science measurements from multiple flybys of Enceladus and Titan using a solar-electric powered spacecraft in orbit around Saturn. With significant improvements in mass range and resolution, as compared with Cassini, the Ion and Neutral Gas Mass Spectrometer (INMS) and the Enceladus Icy Jet Analyzer (ENIJA) time of flight mass spectrometers will provide the data needed to decipher the subtle details of the aqueous environment of Enceladus from plume sampling and of the complex pre-biotic chemistry occurring in Titan's atmosphere. The Titan Imaging and Geology, Enceladus Reconnaissance (TIGER) mid-wave infrared camera will map thermal emission from Enceladus' tiger stripes at meter scales and investigate Titan's geology and compositional variability at decameter scales. The Radio Science Experiment (RSE) measurements will provide constraints on the ice shell structure and the properties of the internal oceans of Enceladus and Titan. We will present the concept and discuss the major improvements to our understanding of these two unique worlds around Saturn that the mission could provide.
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Dates and versions

insu-03573498 , version 1 (14-02-2022)

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Cite

Giuseppe Mitri, Frank Postberg, Jason M. Soderblom, Gabriel Tobie, Paolo Tortora, et al.. Explorer of Enceladus and Titan (E2T): Investigating the habitability and evolution of ocean worlds in the Saturn system. American Astronomical Society, 2016, à renseigner, Unknown Region. ⟨insu-03573498⟩
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