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ESPRESSO on VLT: An Instrument for Exoplanet Research

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arxiv 1711.05250 v2 pith:IC4XTWBU submitted 2017-11-14 astro-ph.IM astro-ph.EP

Jonay I. González Hernández , Francesco Pepe , Paolo Molaro , Nuno Santos This is my paper · ORCID
classification astro-ph.IMastro-ph.EP
keywords espressospectrographexoplanetsfourprecisionspectroscopictelescopesultra-stable
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ESPRESSO (Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations) is a VLT ultra-stable high resolution spectrograph installed at ESO's Paranal Observatory in Chile at the end of 2017 and that started regular operations in October 2018. The spectrograph is located at the VLT Combined-Coud\'e Laboratory and is able to operate with one or (simultaneously) four 8.2m Unit Telescopes (UTs) through four optical Coud\'e trains. Combining efficiency and extreme spectroscopic precision, ESPRESSO has demonstrated to gain about two magnitudes with respect to its predecessor HARPS. ESPRESSO has improved the instrumental radial-velocity precision getting close to the aimed 10 cm/s level, thus opening the possibility to explore new frontiers in the search for Earth-mass exoplanets in the habitable zone of quiet, nearby G to M-dwarfs. ESPRESSO will be certainly an important development step towards high-precision ultra-stable spectrographs on the next generation of giant telescopes such as the ELT.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Catalog for the ESPRESSO blind radial velocity exoplanet survey

    astro-ph.EP 2019-08 accept novelty 6.0 of 10

    A catalog of 45 G, K, and M dwarf stars selected for the ESPRESSO blind radial velocity search for Earth-like planets, with spectroscopic characterization of 249 candidates.

  2. The Frequency-Shift in the Gravitational Microlensing

    astro-ph.GA 2019-08 conditional novelty 5.0 of 10

    The transverse motion of a gravitational lens shifts the frequency of microlensed starlight, and measuring that shift could break the mass-distance-velocity degeneracy of microlensing events.

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