Development and design of Second Earth Initiative Spectrograph (2ES)

  • Julian Stürmer
  • , Lars A. Buchhave
  • , Niels C. Jessen
  • , Søren M. Pedersen
  • , Andreas Seifahrt
  • , Stanimir Letchev
  • , Damien Jones
  • , Luke Gers
  • , Rafael Brahm
  • , Andrés Jordan
  • , Thomas Henning
  • , Laura Kreidberg
  • , Andreas Quirrenbach
  • , Ansgar Reiners

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We report on the design of 2ES (Second Earth Initiative Spectrograph): a new fiber-fed, high-resolution, high-precision radial velocity echelle spectrograph for the 2.2 m ESO/MPG telescope in Chile, which will cover the visible wavelength range ∼370 nm to 850 nm with a resolution of 120, 000. 2ES will be dedicated to a >5-year observing program with access to the majority (2/3) of the telescope time with the goal of discovering temperate terrestrial Earth-mass planets in the habitable zone around the bright solar-type stars. To achieve this goal, 2ES aims for ultra-high instrumental radial-velocity precision and an observing strategy that involves high-cadence observation of the brightest Sun-like stars in the Southern Hemisphere. Here, we present an overview of the project, its observation strategy, the optical design as well as the opto-mechanical concepts and calibration strategies to achieve the required instrument stability.

Original languageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy X
EditorsJulia J. Bryant, Kentaro Motohara, Joel R. Vernet
PublisherSPIE
ISBN (Electronic)9781510675155
DOIs
StatePublished - 2024
EventGround-Based and Airborne Instrumentation for Astronomy X 2024 - Yokohama, Japan
Duration: 16 Jun 202421 Jun 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13096
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceGround-Based and Airborne Instrumentation for Astronomy X 2024
Country/TerritoryJapan
CityYokohama
Period16/06/2421/06/24

Keywords

  • LFC
  • etalon
  • radial velocity
  • spectrograph
  • sun-like stars

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