Uranus’ stratospheric HCl upper limit from Herschel/SPIRE

Nicholas A  Teanby; PGJ Irwin

doi:10.3847/2515-5172/abc565

Uranus’ stratospheric HCl upper limit from Herschel/SPIRE

Nicholas A Teanby^*, PGJ Irwin

^*Corresponding author for this work

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Abstract

Herschel/SPIRE observations of Uranus are used to search for stratospheric hydrogen chloride (HCl) emission at 41.74 cm−1. HCl was not detected and instead 3σ upper limits were determined; <6.2 ppb (<2.0 × 1014 molecules cm−2) for a 0.1 mbar step profile and <0.40 ppb (<1.2 × 1014 molecules cm−2) for a 1 mbar step profile. HCl is expected to have an external source and these upper limits are consistent with abundances of other external species (CO, H2O, CO2) and a solar composition source.

Original language	English
Article number	191
Journal	Research Notes of the AAS
Volume	4
Issue number	10
DOIs	https://doi.org/10.3847/2515-5172/abc565
Publication status	Published - 1 Oct 2020

Keywords

Uranus
outer planets
atospheric composition
planetary science

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10.3847/2515-5172/abc565

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Planetary Science at Bristol
Elliott, T. (Principal Investigator)
1/04/18 → 28/02/22
Project: Research
Linking atmospheric and surface processes with ExoMars 2016
Teanby, N. A. (Principal Investigator)
1/07/17 → 30/09/22
Project: Research
Research into planetary formation at Bristol.
Elliott, T. (Principal Investigator)
1/04/15 → 28/02/19
Project: Research

Cite this

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title = "Uranus{\textquoteright} stratospheric HCl upper limit from Herschel/SPIRE",

abstract = "Herschel/SPIRE observations of Uranus are used to search for stratospheric hydrogen chloride (HCl) emission at 41.74 cm−1. HCl was not detected and instead 3σ upper limits were determined; <6.2 ppb (<2.0 × 1014 molecules cm−2) for a 0.1 mbar step profile and <0.40 ppb (<1.2 × 1014 molecules cm−2) for a 1 mbar step profile. HCl is expected to have an external source and these upper limits are consistent with abundances of other external species (CO, H2O, CO2) and a solar composition source.",

keywords = "Uranus, outer planets, atospheric composition, planetary science",

author = "Teanby, {Nicholas A} and PGJ Irwin",

year = "2020",

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doi = "10.3847/2515-5172/abc565",

language = "English",

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T1 - Uranus’ stratospheric HCl upper limit from Herschel/SPIRE

AU - Teanby, Nicholas A

AU - Irwin, PGJ

PY - 2020/10/1

Y1 - 2020/10/1

N2 - Herschel/SPIRE observations of Uranus are used to search for stratospheric hydrogen chloride (HCl) emission at 41.74 cm−1. HCl was not detected and instead 3σ upper limits were determined; <6.2 ppb (<2.0 × 1014 molecules cm−2) for a 0.1 mbar step profile and <0.40 ppb (<1.2 × 1014 molecules cm−2) for a 1 mbar step profile. HCl is expected to have an external source and these upper limits are consistent with abundances of other external species (CO, H2O, CO2) and a solar composition source.

AB - Herschel/SPIRE observations of Uranus are used to search for stratospheric hydrogen chloride (HCl) emission at 41.74 cm−1. HCl was not detected and instead 3σ upper limits were determined; <6.2 ppb (<2.0 × 1014 molecules cm−2) for a 0.1 mbar step profile and <0.40 ppb (<1.2 × 1014 molecules cm−2) for a 1 mbar step profile. HCl is expected to have an external source and these upper limits are consistent with abundances of other external species (CO, H2O, CO2) and a solar composition source.

KW - Uranus

KW - outer planets

KW - atospheric composition

KW - planetary science

U2 - 10.3847/2515-5172/abc565

DO - 10.3847/2515-5172/abc565

M3 - Article (Academic Journal)

VL - 4

JO - Research Notes of the AAS

JF - Research Notes of the AAS

IS - 10

M1 - 191

ER -

Uranus’ stratospheric HCl upper limit from Herschel/SPIRE

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Keywords

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Projects

Planetary Science at Bristol

Linking atmospheric and surface processes with ExoMars 2016

Research into planetary formation at Bristol.

Cite this