ROME/REA: a gravitational microlensing search for exoplanets beyond the snow line on a global network of robotic telescopes

Yiannis Tsapras, Rachel A. Street, Markus Hundertmark, Etienne Bachelet, Martin Dominik, Valerio Bozza, Arnaud Cassan, Joachim Wambsganss, Keith Douglas Horne, Shude Mao, Weichen Zang, Daniel M. Bramich, Abhijit Saha

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Abstract

Planet population synthesis models predict an abundance of planets with semimajor axes between 1 and 10 au, yet they lie at the edge of the detection limits of most planet finding techniques. Discovering these planets and studying their distribution is critical to understanding the physical processes that drive planet formation. ROME/REA is a gravitational microlensing project whose main science driver is to discover exoplanets in the cold outer regions of planetary systems. To achieve this, it uses a novel approach combining a multiband survey with reactive follow-up observations, exploiting the unique capabilities of the Las Cumbres Observatory global network of robotic telescopes combined with a Target and Observation Manager system. We present the main science objectives and a technical overview of the project, including initial results.
Original languageEnglish
Article number1244401
Pages (from-to)1-12
Number of pages12
JournalPublications of the Astronomical Society of the Pacific
Volume131
Issue number1006
Early online date11 Oct 2019
DOIs
Publication statusPublished - Dec 2019

Keywords

  • Galaxy: bulge
  • Gravitational lensing: micro
  • Methods: data analysis
  • Methods: observational
  • Planetary systems

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