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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
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OWL-Moon in 2050 and beyond.

Jean Schneider1, Joseph Silk2,3, Farrokh Vakili4

  • 1Observatoire de Paris, Paris, France.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|November 23, 2020
PubMed
Summary
This summary is machine-generated.

A large lunar telescope with a 50-100m aperture is proposed for detecting biosignatures on exoplanets and advancing cosmology. This platform offers continuous monitoring and picosecond angular resolution via intensity interferometry.

Keywords:
Mooncosmologyexoplanetsintensity interferometrylarge telescopes

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Area of Science:

  • Astronomy and astrophysics
  • Exoplanetary science
  • Cosmology

Background:

  • Current astronomical observatories face limitations in aperture size and continuous monitoring capabilities.
  • Earth's atmosphere hinders angular resolution and spectro-polarimetric observations.
  • Space telescopes have aperture limitations, restricting detailed exoplanet studies.

Purpose of the Study:

  • To propose a novel lunar-based telescope concept for advanced astronomical observations.
  • To address key questions in exoplanetary science, geophysics, and cosmology.
  • To enable the detection of biosignatures on habitable exoplanets.

Main Methods:

  • Proposing an Overwhelmingly Large Telescope (OWL)-class lunar telescope with a 50-100m aperture for visible and IR astronomy.
  • Leveraging the Moon's stable platform for continuous monitoring and reduced atmospheric interference.
  • Utilizing Intensity Interferometry by coupling the lunar telescope with Earth-based telescopes for picosecond angular resolution.

Main Results:

  • A lunar telescope overcomes Earth-based limitations, enabling spectro-polarimetric and spatial feature detection.
  • Continuous monitoring from the Moon allows characterization of exoplanet temporal behaviors (rotation, meteorology, seasons).
  • The proposed instrument facilitates unprecedented angular resolution for astronomical observations.

Conclusions:

  • A large lunar telescope is a viable and necessary next step for addressing fundamental questions in astronomy.
  • The lunar south pole offers advantages for continuous monitoring and thermal stability.
  • This concept provides a roadmap for future lunar-based astronomical observatories.