A baseline spectroscopic study of the infrared Auroras of Jupiter

Hoanh An Lam; Nicholas Achilleos; Steven Miller; Jonathan Tennyson; Laurence M. Trafton; Thomas R. Geballe; Gilda E. Ballester

doi:10.1006/icar.1997.5698

A baseline spectroscopic study of the infrared Auroras of Jupiter

Hoanh An Lam, Nicholas Achilleos, Steven Miller, Jonathan Tennyson, Laurence M. Trafton, Thomas R. Geballe, Gilda E. Ballester

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Abstract

We present the results of a spectroscopic study of the H⁺₃infrared emissions of Jupiter, obtained using the United Kingdom Infrared Telescope (UKIRT) on Mauna Kea, Hawaii, during May 3-5, 1993. Although we have obtained data from the whole of the planet, in this paper we concentrate on the auroral regions. Derived H⁺₃temperatures for these vary between 700 and 1000 K, and column densities are of the order of 10¹²cm^-2. There is a strong (anti-)correlation between these parameters, however, that requires the introduction of new variables to characterize the jovian auroras fully. The total H⁺₃auroral emission is presented as a function of central meridian longitude. A simple geometric model of this emission does not describe the data adequately. The integrated infrared auroral emission in each hemisphere is of the order of a few × 10¹²W, making it comparable to auroral output in the ultraviolet.

Original language	English (US)
Pages (from-to)	379-393
Number of pages	15
Journal	Icarus
Volume	127
Issue number	2
DOIs	https://doi.org/10.1006/icar.1997.5698
State	Published - Jun 1997
Externally published	Yes

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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title = "A baseline spectroscopic study of the infrared Auroras of Jupiter",

abstract = "We present the results of a spectroscopic study of the H+3infrared emissions of Jupiter, obtained using the United Kingdom Infrared Telescope (UKIRT) on Mauna Kea, Hawaii, during May 3-5, 1993. Although we have obtained data from the whole of the planet, in this paper we concentrate on the auroral regions. Derived H+3temperatures for these vary between 700 and 1000 K, and column densities are of the order of 1012cm-2. There is a strong (anti-)correlation between these parameters, however, that requires the introduction of new variables to characterize the jovian auroras fully. The total H+3auroral emission is presented as a function of central meridian longitude. A simple geometric model of this emission does not describe the data adequately. The integrated infrared auroral emission in each hemisphere is of the order of a few × 1012W, making it comparable to auroral output in the ultraviolet.",

author = "Lam, {Hoanh An} and Nicholas Achilleos and Steven Miller and Jonathan Tennyson and Trafton, {Laurence M.} and Geballe, {Thomas R.} and Ballester, {Gilda E.}",

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T1 - A baseline spectroscopic study of the infrared Auroras of Jupiter

AU - Lam, Hoanh An

AU - Achilleos, Nicholas

AU - Miller, Steven

AU - Tennyson, Jonathan

AU - Trafton, Laurence M.

AU - Geballe, Thomas R.

AU - Ballester, Gilda E.

PY - 1997/6

Y1 - 1997/6

N2 - We present the results of a spectroscopic study of the H+3infrared emissions of Jupiter, obtained using the United Kingdom Infrared Telescope (UKIRT) on Mauna Kea, Hawaii, during May 3-5, 1993. Although we have obtained data from the whole of the planet, in this paper we concentrate on the auroral regions. Derived H+3temperatures for these vary between 700 and 1000 K, and column densities are of the order of 1012cm-2. There is a strong (anti-)correlation between these parameters, however, that requires the introduction of new variables to characterize the jovian auroras fully. The total H+3auroral emission is presented as a function of central meridian longitude. A simple geometric model of this emission does not describe the data adequately. The integrated infrared auroral emission in each hemisphere is of the order of a few × 1012W, making it comparable to auroral output in the ultraviolet.

AB - We present the results of a spectroscopic study of the H+3infrared emissions of Jupiter, obtained using the United Kingdom Infrared Telescope (UKIRT) on Mauna Kea, Hawaii, during May 3-5, 1993. Although we have obtained data from the whole of the planet, in this paper we concentrate on the auroral regions. Derived H+3temperatures for these vary between 700 and 1000 K, and column densities are of the order of 1012cm-2. There is a strong (anti-)correlation between these parameters, however, that requires the introduction of new variables to characterize the jovian auroras fully. The total H+3auroral emission is presented as a function of central meridian longitude. A simple geometric model of this emission does not describe the data adequately. The integrated infrared auroral emission in each hemisphere is of the order of a few × 1012W, making it comparable to auroral output in the ultraviolet.

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A baseline spectroscopic study of the infrared Auroras of Jupiter

Abstract

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