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The far-ultraviolet main auroral emission at Jupiter – Part 2: vertical emission profile

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The far-ultraviolet main auroral emission at Jupiter – Part 2: vertical emission profile. / Bonfond, B.; Gustin, J.; Gérard, J.-C. et al.
In: Annales Geophysicae, Vol. 33, No. 10, 01.10.2015, p. 1211-1219.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Bonfond, B, Gustin, J, Gérard, J-C, Grodent, D, Radioti, A, Palmaerts, B, Badman, SV, Khurana, KK & Tao, C 2015, 'The far-ultraviolet main auroral emission at Jupiter – Part 2: vertical emission profile', Annales Geophysicae, vol. 33, no. 10, pp. 1211-1219. https://doi.org/10.5194/angeo-33-1211-2015

APA

Bonfond, B., Gustin, J., Gérard, J-C., Grodent, D., Radioti, A., Palmaerts, B., Badman, S. V., Khurana, K. K., & Tao, C. (2015). The far-ultraviolet main auroral emission at Jupiter – Part 2: vertical emission profile. Annales Geophysicae, 33(10), 1211-1219. https://doi.org/10.5194/angeo-33-1211-2015

Vancouver

Bonfond B, Gustin J, Gérard J-C, Grodent D, Radioti A, Palmaerts B et al. The far-ultraviolet main auroral emission at Jupiter – Part 2: vertical emission profile. Annales Geophysicae. 2015 Oct 1;33(10):1211-1219. Epub 2015 Oct 1. doi: 10.5194/angeo-33-1211-2015

Author

Bonfond, B. ; Gustin, J. ; Gérard, J.-C. et al. / The far-ultraviolet main auroral emission at Jupiter – Part 2 : vertical emission profile. In: Annales Geophysicae. 2015 ; Vol. 33, No. 10. pp. 1211-1219.

Bibtex

@article{199f549bc03247759d6b21c0fd9eaa74,
title = "The far-ultraviolet main auroral emission at Jupiter – Part 2: vertical emission profile",
abstract = "The aurorae at Jupiter are made up of many different features associated with a variety of generation mechanisms. The main auroral emission, also known as the main oval, is the most prominent of them as it accounts for approximately half of the total power emitted by the aurorae in the ultraviolet range. The energy of the precipitating electrons is a crucial parameter to characterize the processes at play which give rise to these auroral emissions, and the altitude of the emissions directly depends on this energy. Here we make use of far-UV (FUV) images acquired with the Advanced Camera for Surveys on board the Hubble Space Telescope and spectra acquired with the Space Telescope Imaging Spectrograph to measure the vertical profile of the main emissions. The altitude of the brightness peak as seen above the limb is ~ 400 km, which is significantly higher than the 250 km measured in the post-dusk sector by Galileo in the visible domain. However, a detailed analysis of the effect of hydrocarbon absorption, including both simulations and FUV spectral observations, indicates that FUV apparent vertical profiles should be considered with caution, as these observations are not incompatible with an emission peak located at 250 km. The analysis also calls for spectral observations to be carried out with an optimized geometry in order to remove observational ambiguities.",
author = "B. Bonfond and J. Gustin and J.-C. G{\'e}rard and D. Grodent and A. Radioti and B. Palmaerts and Badman, {S. V.} and Khurana, {K. K.} and C. Tao",
year = "2015",
month = oct,
day = "1",
doi = "10.5194/angeo-33-1211-2015",
language = "English",
volume = "33",
pages = "1211--1219",
journal = "Annales Geophysicae",
issn = "0992-7689",
publisher = "European Geosciences Union",
number = "10",

}

RIS

TY - JOUR

T1 - The far-ultraviolet main auroral emission at Jupiter – Part 2

T2 - vertical emission profile

AU - Bonfond, B.

AU - Gustin, J.

AU - Gérard, J.-C.

AU - Grodent, D.

AU - Radioti, A.

AU - Palmaerts, B.

AU - Badman, S. V.

AU - Khurana, K. K.

AU - Tao, C.

PY - 2015/10/1

Y1 - 2015/10/1

N2 - The aurorae at Jupiter are made up of many different features associated with a variety of generation mechanisms. The main auroral emission, also known as the main oval, is the most prominent of them as it accounts for approximately half of the total power emitted by the aurorae in the ultraviolet range. The energy of the precipitating electrons is a crucial parameter to characterize the processes at play which give rise to these auroral emissions, and the altitude of the emissions directly depends on this energy. Here we make use of far-UV (FUV) images acquired with the Advanced Camera for Surveys on board the Hubble Space Telescope and spectra acquired with the Space Telescope Imaging Spectrograph to measure the vertical profile of the main emissions. The altitude of the brightness peak as seen above the limb is ~ 400 km, which is significantly higher than the 250 km measured in the post-dusk sector by Galileo in the visible domain. However, a detailed analysis of the effect of hydrocarbon absorption, including both simulations and FUV spectral observations, indicates that FUV apparent vertical profiles should be considered with caution, as these observations are not incompatible with an emission peak located at 250 km. The analysis also calls for spectral observations to be carried out with an optimized geometry in order to remove observational ambiguities.

AB - The aurorae at Jupiter are made up of many different features associated with a variety of generation mechanisms. The main auroral emission, also known as the main oval, is the most prominent of them as it accounts for approximately half of the total power emitted by the aurorae in the ultraviolet range. The energy of the precipitating electrons is a crucial parameter to characterize the processes at play which give rise to these auroral emissions, and the altitude of the emissions directly depends on this energy. Here we make use of far-UV (FUV) images acquired with the Advanced Camera for Surveys on board the Hubble Space Telescope and spectra acquired with the Space Telescope Imaging Spectrograph to measure the vertical profile of the main emissions. The altitude of the brightness peak as seen above the limb is ~ 400 km, which is significantly higher than the 250 km measured in the post-dusk sector by Galileo in the visible domain. However, a detailed analysis of the effect of hydrocarbon absorption, including both simulations and FUV spectral observations, indicates that FUV apparent vertical profiles should be considered with caution, as these observations are not incompatible with an emission peak located at 250 km. The analysis also calls for spectral observations to be carried out with an optimized geometry in order to remove observational ambiguities.

U2 - 10.5194/angeo-33-1211-2015

DO - 10.5194/angeo-33-1211-2015

M3 - Journal article

VL - 33

SP - 1211

EP - 1219

JO - Annales Geophysicae

JF - Annales Geophysicae

SN - 0992-7689

IS - 10

ER -