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SUMMARY:LBT/PEPSI Observations of the Ultra Hot Jupiter KELT-20 b
DTSTART;VALUE=DATE-TIME:20220907T074500Z
DTEND;VALUE=DATE-TIME:20220907T080000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115905Z
UID:indico-contribution-126@meetings.aip.de
DESCRIPTION:Speakers: Marshall Johnson (Ohio State University)\nUltra hot 
 Jupiters around bright stars are the most favorable targets for high-resol
 ution exoplanetary spectroscopy. We present our emission and transmission 
 spectroscopy observations of the ultra hot Jupiter KELT-20 b/MASCARA-2 b f
 rom PEPSI on LBT\, with R=130\,000. With the LBT's large aperture we obtai
 n some of the highest signal-to-noise ratio exoplanetary spectra to date (
 stellar spectra with total SNR~3400). We obtained a 16-sigma detection of 
 Fe I emission from the planetary atmosphere via cross-correlation\, and we
  consider the line profile and time variation of this signal in order to c
 onstrain the planetary atmospheric structure. We fail to detect any other 
 species in emission despite the strong Fe I emission\, including several s
 pecies previously reported in the literature. We will discuss the implicat
 ions of these non-detections\, including placing limits on atmospheric inv
 ersion agents such as TiO and VO. These high signal-to-noise spectra give 
 a preview of what we will be able to achieve for many more planets in the 
 ELT era.\n\nhttps://meetings.aip.de/event/16/contributions/126/
LOCATION:Leibniz Institute for Astrophysics Potsdam (AIP) Lecture Hall
URL:https://meetings.aip.de/event/16/contributions/126/
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