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- W3100207926 abstract "Abstract Terrestrial planets orbiting M dwarfs may soon be observed with the James Webb Space Telescope ( JWST ) to characterize their atmospheric composition and search for signs of habitability or life. These planets may undergo significant atmospheric and ocean loss due to the superluminous pre-main-sequence phase of their host stars, which may leave behind abiotically generated oxygen, a false positive for the detection of life. Determining if ocean loss has occurred will help assess potential habitability and whether or not any O 2 detected is biogenic. In the solar system, differences in isotopic abundances have been used to infer the history of ocean loss and atmospheric escape (e.g., Venus, Mars). We find that isotopologue measurements using transit transmission spectra of terrestrial planets around late-type M dwarfs like TRAPPIST-1 may be possible with JWST , if the escape mechanisms and resulting isotopic fractionation were similar to Venus. We present analyses of post-ocean-loss O 2 - and CO 2 -dominated atmospheres containing a range of trace gas abundances. Isotopologue bands are likely detectable throughout the near-infrared (1–8 μ m), especially 3–4 μ m, although not in CO 2 -dominated atmospheres. For Venus-like D/H ratios 100 times that of Earth, TRAPPIST-1b transit signals of up to 79 ppm are possible by observing HDO. Similarly, 18 O/ 16 O ratios 100 times that of Earth produce signals at up to 94 ppm. Detection at signal-to-noise ratio = 5 may be attained on these bands with as few as four to 11 transits, with optimal use of JWST ’s NIRSpec Prism. Consequently, H 2 O and CO 2 isotopologues could be considered as indicators of past ocean loss and atmospheric escape for JWST observations of terrestrial planets around M dwarfs." @default.
- W3100207926 created "2020-11-23" @default.
- W3100207926 creator A5043906566 @default.
- W3100207926 creator A5048061205 @default.
- W3100207926 creator A5051034436 @default.
- W3100207926 date "2019-06-21" @default.
- W3100207926 modified "2023-10-17" @default.
- W3100207926 title "Observing Isotopologue Bands in Terrestrial Exoplanet Atmospheres with the James Webb Space Telescope: Implications for Identifying Past Atmospheric and Ocean Loss" @default.
- W3100207926 cites W1515453912 @default.
- W3100207926 cites W1579401992 @default.
- W3100207926 cites W1586511051 @default.
- W3100207926 cites W1968152463 @default.
- W3100207926 cites W1969084551 @default.
- W3100207926 cites W1970870569 @default.
- W3100207926 cites W1977727470 @default.
- W3100207926 cites W1982912142 @default.
- W3100207926 cites W1985979755 @default.
- W3100207926 cites W1987680095 @default.
- W3100207926 cites W1988270265 @default.
- W3100207926 cites W1988536722 @default.
- W3100207926 cites W1991506123 @default.
- W3100207926 cites W1996076424 @default.
- W3100207926 cites W2000984784 @default.
- W3100207926 cites W2001467085 @default.
- W3100207926 cites W2001667031 @default.
- W3100207926 cites W2003756371 @default.
- W3100207926 cites W2016425269 @default.
- W3100207926 cites W2017133809 @default.
- W3100207926 cites W2026786751 @default.
- W3100207926 cites W2028137835 @default.
- W3100207926 cites W2035697154 @default.
- W3100207926 cites W2040121321 @default.
- W3100207926 cites W2046484550 @default.
- W3100207926 cites W2047751764 @default.
- W3100207926 cites W2052714487 @default.
- W3100207926 cites W2053740361 @default.
- W3100207926 cites W2055081125 @default.
- W3100207926 cites W2060486282 @default.
- W3100207926 cites W2069697206 @default.
- W3100207926 cites W2070259289 @default.
- W3100207926 cites W2075501990 @default.
- W3100207926 cites W2077956414 @default.
- W3100207926 cites W2081815463 @default.
- W3100207926 cites W2089339242 @default.
- W3100207926 cites W2095764533 @default.
- W3100207926 cites W2097828895 @default.
- W3100207926 cites W2099064132 @default.
- W3100207926 cites W2101191153 @default.
- W3100207926 cites W2106839072 @default.
- W3100207926 cites W2118004656 @default.
- W3100207926 cites W2127890359 @default.
- W3100207926 cites W2131504825 @default.
- W3100207926 cites W2133151341 @default.
- W3100207926 cites W2142067912 @default.
- W3100207926 cites W2142243589 @default.
- W3100207926 cites W2145053595 @default.
- W3100207926 cites W2150628684 @default.
- W3100207926 cites W2276137914 @default.
- W3100207926 cites W2279598166 @default.
- W3100207926 cites W2343190161 @default.
- W3100207926 cites W2347128137 @default.
- W3100207926 cites W2417256030 @default.
- W3100207926 cites W2426386917 @default.
- W3100207926 cites W2516354059 @default.
- W3100207926 cites W2518315806 @default.
- W3100207926 cites W2519730153 @default.
- W3100207926 cites W2586496374 @default.
- W3100207926 cites W2590741408 @default.
- W3100207926 cites W2591774673 @default.
- W3100207926 cites W2604131537 @default.
- W3100207926 cites W2605888403 @default.
- W3100207926 cites W2610516798 @default.
- W3100207926 cites W2615499859 @default.
- W3100207926 cites W2618092446 @default.
- W3100207926 cites W2736399476 @default.
- W3100207926 cites W2763921455 @default.
- W3100207926 cites W2770881626 @default.
- W3100207926 cites W2786442905 @default.
- W3100207926 cites W2787088198 @default.
- W3100207926 cites W2790095031 @default.
- W3100207926 cites W2793184231 @default.
- W3100207926 cites W2797410608 @default.
- W3100207926 cites W2801411495 @default.
- W3100207926 cites W2891795929 @default.
- W3100207926 cites W2897544435 @default.
- W3100207926 cites W2899497983 @default.
- W3100207926 cites W2917710115 @default.
- W3100207926 cites W2918011602 @default.
- W3100207926 cites W2921470822 @default.
- W3100207926 cites W2999400573 @default.
- W3100207926 cites W3098414160 @default.
- W3100207926 cites W3098630487 @default.
- W3100207926 cites W3099094084 @default.
- W3100207926 cites W3100249860 @default.
- W3100207926 cites W3100290159 @default.
- W3100207926 cites W3100510789 @default.
- W3100207926 cites W3100525239 @default.
- W3100207926 cites W3101474964 @default.