FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2890698445> ?p ?o ?g. }

• W2890698445 endingPage "98" @default.
• W2890698445 startingPage "86" @default.
• W2890698445 abstract "On Neptune, carbon monoxide and phosphine are disequilibrium species, and their abundance profiles can provide insights into interior processes and the external space environment. Here we use Herschel/SPIRE (Spectral and Photometric Imaging REceiver) observations from 14.9–51.5 cm-1 to obtain abundances from multiple CO and PH3 spectral features. For CO, we find that nine CO bands can be simultaneously fitted using a step profile with a 0.22 ppm tropospheric abundance, a 1.03 ppm stratospheric abundance, and a step transition pressure of 0.11 bar near the tropopause. This is in broad agreement with previous studies. However, we also find that the CO spectral features could be fitted, to well within measurement errors, with a profile that contains no tropospheric CO for pressure levels deeper than 0.5 bar, which is our preferred interpretation. This differs from previous studies that have assumed CO is well mixed throughout the troposphere, which would require an internal CO source to explain and a high O/H enrichment. Our interpretation removes the requirement for extreme interior O/H enrichment in thermochemical models and can finally reconcile D/H and CO measurements. If true, the lack of lower tropospheric CO would imply a decrease in Neptune’s interior water content, favouring a silicate-rich instead of an ice-rich interior. This would be consistent with a protoplanetary ice source with a similar D/H ratio to the current solar system comet population. The upper tropospheric and stratospheric CO at pressures less than 0.5 bar could then be entirely externally sourced from a giant impact as suggested by Lellouch et al.(2005). We also derive a 3-σ upper limit for PH3 of 1.1 ppb at 0.4–0.8 bar. This is the most stringent upper limit to-date and is entirely consistent with predictions from a simple photochemical model." @default.
• W2890698445 created "2018-09-27" @default.
• W2890698445 creator A5012555749 @default.
• W2890698445 creator A5042720670 @default.
• W2890698445 creator A5048466695 @default.
• W2890698445 date "2019-02-01" @default.
• W2890698445 modified "2023-10-18" @default.
• W2890698445 title "Neptune’s carbon monoxide profile and phosphine upper limits from Herschel/SPIRE: Implications for interior structure and formation" @default.
• W2890698445 cites W1496128888 @default.
• W2890698445 cites W1963959484 @default.
• W2890698445 cites W1964772605 @default.
• W2890698445 cites W1970007357 @default.
• W2890698445 cites W1970614477 @default.
• W2890698445 cites W1970903567 @default.
• W2890698445 cites W1976860433 @default.
• W2890698445 cites W1977097152 @default.
• W2890698445 cites W1981652144 @default.
• W2890698445 cites W1981832483 @default.
• W2890698445 cites W1983893587 @default.
• W2890698445 cites W1985350136 @default.
• W2890698445 cites W1996277899 @default.
• W2890698445 cites W1996971258 @default.
• W2890698445 cites W2001610360 @default.
• W2890698445 cites W2002224283 @default.
• W2890698445 cites W2006434704 @default.
• W2890698445 cites W2009322343 @default.
• W2890698445 cites W2013799003 @default.
• W2890698445 cites W2016243123 @default.
• W2890698445 cites W2017239234 @default.
• W2890698445 cites W2028105314 @default.
• W2890698445 cites W2039514984 @default.
• W2890698445 cites W2040245440 @default.
• W2890698445 cites W2042122841 @default.
• W2890698445 cites W2042941064 @default.
• W2890698445 cites W2048680646 @default.
• W2890698445 cites W2051027263 @default.
• W2890698445 cites W2052618488 @default.
• W2890698445 cites W2053290328 @default.
• W2890698445 cites W2059756096 @default.
• W2890698445 cites W2069582232 @default.
• W2890698445 cites W2073843640 @default.
• W2890698445 cites W2081320105 @default.
• W2890698445 cites W2081791700 @default.
• W2890698445 cites W2086870581 @default.
• W2890698445 cites W2092028504 @default.
• W2890698445 cites W2101156252 @default.
• W2890698445 cites W2113795489 @default.
• W2890698445 cites W2121022028 @default.
• W2890698445 cites W2123713825 @default.
• W2890698445 cites W2133010475 @default.
• W2890698445 cites W2135536375 @default.
• W2890698445 cites W2142849774 @default.
• W2890698445 cites W2143290565 @default.
• W2890698445 cites W2148373330 @default.
• W2890698445 cites W2153773175 @default.
• W2890698445 cites W2155164325 @default.
• W2890698445 cites W2165030930 @default.
• W2890698445 cites W2171365283 @default.
• W2890698445 cites W2185526769 @default.
• W2890698445 cites W2268685673 @default.
• W2890698445 cites W2597084198 @default.
• W2890698445 cites W2626276062 @default.
• W2890698445 cites W2755668871 @default.
• W2890698445 cites W2769233014 @default.
• W2890698445 cites W2794102166 @default.
• W2890698445 cites W3101719500 @default.
• W2890698445 cites W3103989206 @default.
• W2890698445 cites W3105965394 @default.
• W2890698445 cites W4293003757 @default.
• W2890698445 doi "https://doi.org/10.1016/j.icarus.2018.09.014" @default.
• W2890698445 hasPublicationYear "2019" @default.
• W2890698445 type Work @default.
• W2890698445 sameAs 2890698445 @default.
• W2890698445 citedByCount "19" @default.
• W2890698445 countsByYear W28906984452019 @default.
• W2890698445 countsByYear W28906984452020 @default.
• W2890698445 countsByYear W28906984452021 @default.
• W2890698445 countsByYear W28906984452022 @default.
• W2890698445 countsByYear W28906984452023 @default.
• W2890698445 crossrefType "journal-article" @default.
• W2890698445 hasAuthorship W2890698445A5012555749 @default.
• W2890698445 hasAuthorship W2890698445A5042720670 @default.
• W2890698445 hasAuthorship W2890698445A5048466695 @default.
• W2890698445 hasBestOaLocation W28906984452 @default.
• W2890698445 hasConcept C121332964 @default.
• W2890698445 hasConcept C127313418 @default.
• W2890698445 hasConcept C144024400 @default.
• W2890698445 hasConcept C149923435 @default.
• W2890698445 hasConcept C171420983 @default.
• W2890698445 hasConcept C2908647359 @default.
• W2890698445 hasConcept C44870925 @default.
• W2890698445 hasConcept C51244244 @default.
• W2890698445 hasConcept C525488444 @default.
• W2890698445 hasConcept C539450922 @default.
• W2890698445 hasConcept C87355193 @default.
• W2890698445 hasConcept C9075549 @default.
• W2890698445 hasConcept C91586092 @default.
• W2890698445 hasConceptScore W2890698445C121332964 @default.

• next