Ammonia in the atmospheres of Saturn and Jupiter

William Hayden Smith; William Macy; William Cochran

doi:10.1016/0019-1035(80)90247-X

Ammonia in the atmospheres of Saturn and Jupiter

William Hayden Smith
, William Macy
, William Cochran

Department of Earth & Planetary Sciences

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We have measured a profile and equivalent width for the 6451.1-Å feature of the 6450-Å band of ammonia at the equator and south pole of Saturn. Estimates for the NH₃ abundance at the center of the disk which vary from 0.4 to 5 m-am, depending upon the atmospheric model used, lead to uncertainties in the NH₃/H₂ ratio which are greater than a factor of 10. Half-widths for theoretical line profiles computed from models in which the NH₃ absorption occurs at a pressure level of 1.0 atm agree with the observed profiles. We have obtained NH₃/H₂ ratios which range from 1 × 10^-5 to 2 × 10^-5 for Jupiter.

Original language	English
Pages (from-to)	93-101
Number of pages	9
Journal	Icarus
Volume	42
Issue number	1
DOIs	https://doi.org/10.1016/0019-1035(80)90247-X
State	Published - Apr 1980

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title = "Ammonia in the atmospheres of Saturn and Jupiter",

abstract = "We have measured a profile and equivalent width for the 6451.1-{\AA} feature of the 6450-{\AA} band of ammonia at the equator and south pole of Saturn. Estimates for the NH3 abundance at the center of the disk which vary from 0.4 to 5 m-am, depending upon the atmospheric model used, lead to uncertainties in the NH3/H2 ratio which are greater than a factor of 10. Half-widths for theoretical line profiles computed from models in which the NH3 absorption occurs at a pressure level of 1.0 atm agree with the observed profiles. We have obtained NH3/H2 ratios which range from 1 × 10-5 to 2 × 10-5 for Jupiter.",

author = "Smith, \{William Hayden\} and William Macy and William Cochran",

year = "1980",

month = apr,

doi = "10.1016/0019-1035(80)90247-X",

language = "English",

volume = "42",

pages = "93--101",

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T1 - Ammonia in the atmospheres of Saturn and Jupiter

AU - Smith, William Hayden

AU - Macy, William

AU - Cochran, William

PY - 1980/4

Y1 - 1980/4

N2 - We have measured a profile and equivalent width for the 6451.1-Å feature of the 6450-Å band of ammonia at the equator and south pole of Saturn. Estimates for the NH3 abundance at the center of the disk which vary from 0.4 to 5 m-am, depending upon the atmospheric model used, lead to uncertainties in the NH3/H2 ratio which are greater than a factor of 10. Half-widths for theoretical line profiles computed from models in which the NH3 absorption occurs at a pressure level of 1.0 atm agree with the observed profiles. We have obtained NH3/H2 ratios which range from 1 × 10-5 to 2 × 10-5 for Jupiter.

AB - We have measured a profile and equivalent width for the 6451.1-Å feature of the 6450-Å band of ammonia at the equator and south pole of Saturn. Estimates for the NH3 abundance at the center of the disk which vary from 0.4 to 5 m-am, depending upon the atmospheric model used, lead to uncertainties in the NH3/H2 ratio which are greater than a factor of 10. Half-widths for theoretical line profiles computed from models in which the NH3 absorption occurs at a pressure level of 1.0 atm agree with the observed profiles. We have obtained NH3/H2 ratios which range from 1 × 10-5 to 2 × 10-5 for Jupiter.

UR - https://www.scopus.com/pages/publications/0011417882

U2 - 10.1016/0019-1035(80)90247-X

DO - 10.1016/0019-1035(80)90247-X

M3 - Article

AN - SCOPUS:0011417882

SN - 0019-1035

VL - 42

SP - 93

EP - 101

JO - Icarus

JF - Icarus

IS - 1

ER -

Ammonia in the atmospheres of Saturn and Jupiter

Abstract

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