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SUMMARY:Unveiling Oxygen on Earth-like planets with a Fabry Perot based In
 strument
DTSTART;VALUE=DATE-TIME:20220909T143000Z
DTEND;VALUE=DATE-TIME:20220909T144500Z
DTSTAMP;VALUE=DATE-TIME:20240704T115925Z
UID:indico-contribution-111@meetings.aip.de
DESCRIPTION:Speakers: Surangkhana Rukdee (MPE)\nThe upcoming Extremely Lar
 ge Telescopes (ELTs) will have the collecting area required to detect pote
 ntial biosignature gases such as molecular oxygen\, O2\, in the atmosphere
  of terrestrial planets around nearby stars. To maximize our capability to
  detect O2 using this method\, extreme high spectral resolution R=300\,000
 -500\,000 is required to fully resolve the absorption lines in an exoplane
 t atmosphere and disentangle telluric lines from our own atmosphere. Curre
 nt high-resolution spectrographs typically achieve spectral resolution of 
 R=100\,000. We demonstrate a new approach with an ultra-high spectral reso
 lution booster to be coupled in front of a high-resolution spectrograph. T
 he booster is a chained Fabry Perot array which imposes a hyperfine chaine
 d spectral profile. With a prototype we developed\, our on-sky observation
 s of the solar spectrum around the O2 A-band demonstrate a resolving power
  of R=450\,000. The capabilities of this instrument for exoplanet characte
 rization are substantiated by detection of multiple atomic species\, Ni I\
 , Fe I\, Mg I\, K\, and Si\, hidden among the molecular oxygen feature.\n\
 nhttps://meetings.aip.de/event/16/contributions/111/
LOCATION:Leibniz Institute for Astrophysics Potsdam (AIP) Lecture Hall
URL:https://meetings.aip.de/event/16/contributions/111/
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