The Production of Nitrogen Atoms on Mars and their Escape

J. L. Fox; A. Dalgarno

doi:10.1016/0032-0633(80)90102-6

The Production of Nitrogen Atoms on Mars and their Escape

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Abstract

Quantitative calculations of the escape rate of nitrogen by photodissociation and photoionization, by photoelectron impact processes, by chemical reactions and by dissociative recombination are reported. It is shown that the predicted present escape rate of 2.0 × 10 ⁵ atoms cm ⁻² S ⁻¹ is consistent with the measured ¹⁵ N/ ¹⁴ N isotope ratio. A minimum of 4.0 × 10 ²² cm ⁻² S ⁻¹ is obtained for the initial reservoir of N ₂ . The production rates of N( ⁴ S) and N( ² D) atoms in the atmosphere are obtained and the altitude profile of N( ² D) is calculated.

Original language	English
Pages (from-to)	41-46
Number of pages	6
Journal	Planetary and Space Science
Volume	28
Issue number	1
DOIs	https://doi.org/10.1016/0032-0633(80)90102-6
State	Published - Jan 1980
Externally published	Yes

ASJC Scopus Subject Areas

Astronomy and Astrophysics
Space and Planetary Science

Disciplines

Astrophysics and Astronomy
Physical Sciences and Mathematics
Physics

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10.1016/0032-0633(80)90102-6

Cite this

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title = "The Production of Nitrogen Atoms on Mars and their Escape",

abstract = " Quantitative calculations of the escape rate of nitrogen by photodissociation and photoionization, by photoelectron impact processes, by chemical reactions and by dissociative recombination are reported. It is shown that the predicted present escape rate of 2.0 × 10 5 atoms cm −2 S −1 is consistent with the measured 15 N/ 14 N isotope ratio. A minimum of 4.0 × 10 22 cm −2 S −1 is obtained for the initial reservoir of N 2 . The production rates of N( 4 S) and N( 2 D) atoms in the atmosphere are obtained and the altitude profile of N( 2 D) is calculated.",

author = "Fox, \{J. L.\} and A. Dalgarno",

year = "1980",

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doi = "10.1016/0032-0633(80)90102-6",

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volume = "28",

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journal = "Planetary and Space Science",

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AU - Fox, J. L.

AU - Dalgarno, A.

PY - 1980/1

Y1 - 1980/1

N2 - Quantitative calculations of the escape rate of nitrogen by photodissociation and photoionization, by photoelectron impact processes, by chemical reactions and by dissociative recombination are reported. It is shown that the predicted present escape rate of 2.0 × 10 5 atoms cm −2 S −1 is consistent with the measured 15 N/ 14 N isotope ratio. A minimum of 4.0 × 10 22 cm −2 S −1 is obtained for the initial reservoir of N 2 . The production rates of N( 4 S) and N( 2 D) atoms in the atmosphere are obtained and the altitude profile of N( 2 D) is calculated.

AB - Quantitative calculations of the escape rate of nitrogen by photodissociation and photoionization, by photoelectron impact processes, by chemical reactions and by dissociative recombination are reported. It is shown that the predicted present escape rate of 2.0 × 10 5 atoms cm −2 S −1 is consistent with the measured 15 N/ 14 N isotope ratio. A minimum of 4.0 × 10 22 cm −2 S −1 is obtained for the initial reservoir of N 2 . The production rates of N( 4 S) and N( 2 D) atoms in the atmosphere are obtained and the altitude profile of N( 2 D) is calculated.

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JO - Planetary and Space Science

JF - Planetary and Space Science

IS - 1

ER -

The Production of Nitrogen Atoms on Mars and their Escape

Abstract

ASJC Scopus Subject Areas

Disciplines

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