FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1968909145> ?p ?o ?g. }

• W1968909145 endingPage "349" @default.
• W1968909145 startingPage "349" @default.
• W1968909145 abstract "Low-lying plasma layers have been observed sporadically in the Martian atmosphere by radio occultation measurements from spacecraft such as the Mars Express Orbiter and the Mars Global Surveyor. These layers are just a few km wide, and tend to occur around 90 km. It has been proposed that the layers consist of metallic ions, for two reasons: they occur in the aerobraking region of the planet where meteoroids ablate; and they resemble sporadic E layers in the terrestrial atmosphere which are known to be composed principally of Fe+ and Mg+ ions. This paper addresses the problem of how metallic ions can persist in a CO2-rich atmosphere, where the ions should be neutralized rapidly by formation of metal-CO2 cluster ions followed by dissociative electron recombination. Laboratory studies using the pulsed laser photolysis/laser induced fluorescence and flow tube/mass spectrometer techniques were used to measure the following rate coefficients: k (Mg+ + CO2 (+ CO2) --> Mg+ x CO2, 190-403 K) = (5.3 +/- 0.7) x 10(-29) (T/300 K)(-1.86 +/- 0.03) cm6 molecule --> 2 s(-1); k(Mg+ x CO2 + O2 --> MgO2(+) + CO2, 297 K) = (2.2 +/- 0.8) x 10(-11) cm3 molecule(-1) s(-1); k(MgO2(+) + O --> MgO(+) + O2, 297 K) = (6.5 +/- 1.8) x 10(-10) cm3 molecule(-1) s(-1); and k(MgO(+) + O --> Mg(+) + O2, 297 K) = (5.9 +/- 2.4) x 10(-10) cm3 molecule(-1) s(-1). A model of magnesium and iron chemistry in the Martian atmosphere was then constructed, which includes meteoric differential ablation rates calculated with the Leeds CABMOD model, photo-ionization, and gas-phase ion-molecule and neutral chemistry. The model shows that nearly all the metallic ions between 70 and 110 km should be Mg+, because the reactions of MgO2+ and MgO+ with atomic O are fast enough to prevent these molecular ions undergoing dissociative electron recombination (unlike the analogous Fe species). There are enough Mg+ ions to form sporadic layers of the observed plasma density, and the layers can have a lifetime against neutralization in excess of 20 h." @default.
• W1968909145 created "2016-06-24" @default.
• W1968909145 creator A5020831592 @default.
• W1968909145 creator A5037222986 @default.
• W1968909145 date "2010-01-01" @default.
• W1968909145 modified "2023-09-25" @default.
• W1968909145 title "Meteoric ion layers in the Martian atmosphere" @default.
• W1968909145 cites W1515661620 @default.
• W1968909145 cites W1966489873 @default.
• W1968909145 cites W1967287320 @default.
• W1968909145 cites W1969173287 @default.
• W1968909145 cites W1969783445 @default.
• W1968909145 cites W1970242264 @default.
• W1968909145 cites W1977457829 @default.
• W1968909145 cites W1991083162 @default.
• W1968909145 cites W1991569834 @default.
• W1968909145 cites W1991734153 @default.
• W1968909145 cites W1993328134 @default.
• W1968909145 cites W1996979150 @default.
• W1968909145 cites W1998480042 @default.
• W1968909145 cites W2005827495 @default.
• W1968909145 cites W2007649982 @default.
• W1968909145 cites W2008207552 @default.
• W1968909145 cites W2010143950 @default.
• W1968909145 cites W2013627083 @default.
• W1968909145 cites W2014507033 @default.
• W1968909145 cites W2015770500 @default.
• W1968909145 cites W2017345306 @default.
• W1968909145 cites W2018150385 @default.
• W1968909145 cites W2025294965 @default.
• W1968909145 cites W2027671426 @default.
• W1968909145 cites W2036314405 @default.
• W1968909145 cites W2040299374 @default.
• W1968909145 cites W2043335413 @default.
• W1968909145 cites W2045471756 @default.
• W1968909145 cites W2050929385 @default.
• W1968909145 cites W2051394536 @default.
• W1968909145 cites W2054239947 @default.
• W1968909145 cites W2061354576 @default.
• W1968909145 cites W2067863059 @default.
• W1968909145 cites W2070496801 @default.
• W1968909145 cites W2074267304 @default.
• W1968909145 cites W2078678232 @default.
• W1968909145 cites W2080030504 @default.
• W1968909145 cites W2089491431 @default.
• W1968909145 cites W2091310932 @default.
• W1968909145 cites W2093021986 @default.
• W1968909145 cites W2095488301 @default.
• W1968909145 cites W2100884468 @default.
• W1968909145 cites W2102819977 @default.
• W1968909145 cites W2103579203 @default.
• W1968909145 cites W2117474626 @default.
• W1968909145 cites W2124942875 @default.
• W1968909145 cites W2131067066 @default.
• W1968909145 cites W2131792031 @default.
• W1968909145 cites W2159836545 @default.
• W1968909145 cites W3104005227 @default.
• W1968909145 cites W4229689828 @default.
• W1968909145 doi "https://doi.org/10.1039/c003726e" @default.
• W1968909145 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21302556" @default.
• W1968909145 hasPublicationYear "2010" @default.
• W1968909145 type Work @default.
• W1968909145 sameAs 1968909145 @default.
• W1968909145 citedByCount "52" @default.
• W1968909145 countsByYear W19689091452012 @default.
• W1968909145 countsByYear W19689091452014 @default.
• W1968909145 countsByYear W19689091452015 @default.
• W1968909145 countsByYear W19689091452016 @default.
• W1968909145 countsByYear W19689091452017 @default.
• W1968909145 countsByYear W19689091452018 @default.
• W1968909145 countsByYear W19689091452019 @default.
• W1968909145 countsByYear W19689091452020 @default.
• W1968909145 countsByYear W19689091452021 @default.
• W1968909145 countsByYear W19689091452022 @default.
• W1968909145 countsByYear W19689091452023 @default.
• W1968909145 crossrefType "journal-article" @default.
• W1968909145 hasAuthorship W1968909145A5020831592 @default.
• W1968909145 hasAuthorship W1968909145A5037222986 @default.
• W1968909145 hasConcept C10393806 @default.
• W1968909145 hasConcept C113196181 @default.
• W1968909145 hasConcept C121332964 @default.
• W1968909145 hasConcept C145148216 @default.
• W1968909145 hasConcept C153294291 @default.
• W1968909145 hasConcept C178790620 @default.
• W1968909145 hasConcept C185592680 @default.
• W1968909145 hasConcept C2778600265 @default.
• W1968909145 hasConcept C43617362 @default.
• W1968909145 hasConcept C45095769 @default.
• W1968909145 hasConcept C54582936 @default.
• W1968909145 hasConcept C65440619 @default.
• W1968909145 hasConcept C75473681 @default.
• W1968909145 hasConcept C83260615 @default.
• W1968909145 hasConcept C87355193 @default.
• W1968909145 hasConceptScore W1968909145C10393806 @default.
• W1968909145 hasConceptScore W1968909145C113196181 @default.
• W1968909145 hasConceptScore W1968909145C121332964 @default.
• W1968909145 hasConceptScore W1968909145C145148216 @default.
• W1968909145 hasConceptScore W1968909145C153294291 @default.

• next