Preliminary JIRAM results from Juno polar observations: 1. Methodology and analysis applied to the Jovian northern polar region

Dinelli, B. M.; Fabiano, F.; Adriani, A.; Altieri, F.; Moriconi, M. L.; Mura, A.; Sindoni, G.; Filacchione, G.; Tosi, F.; Migliorini, A.; Grassi, D.; Piccioni, G.; Noschese, R.; Cicchetti, A.; Bolton, S. J.; Connerney, J. E. P.; Atreya, S. K.; Bagenal, F.; Gladstone, G. R.; Hansen, C. J.; Kurth, W. S.; Levin, S. M.; Mauk, B. H.; McComas, D. J.; Gérard, Jean-Claude; Turrini, D.; Stefani, S.; Amoroso, M.; Olivieri, A.

doi:10.1002/2017GL072929

Article (Scientific journals)

Preliminary JIRAM results from Juno polar observations: 1. Methodology and analysis applied to the Jovian northern polar region

Dinelli, B. M.; Fabiano, F.; Adriani, A. et al.

2017 • In Geophysical Research Letters, 44 (10), p. 4625-4632

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https://hdl.handle.net/2268/213512

DOI
10.1002/2017GL072929

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Keywords :

H3+; JIRAM; Juno; Jupiter; Earth sciences; Geophysics; Analysis method; Aurora; Complex relationships; High spatial resolution; Jupiters; Spectral region; NASA

Abstract :

[en] During the first orbit around Jupiter of the NASA/Juno mission, the Jovian Auroral Infrared Mapper (JIRAM) instrument observed the auroral regions with a large number of measurements. The measured spectra show both the emission of the H3+ ion and of methane in the 3–4 μm spectral region. In this paper we describe the analysis method developed to retrieve temperature and column density (CD) of the H3+ ion from JIRAM spectra in the northern auroral region. The high spatial resolution of JIRAM shows an asymmetric aurora, with CD and temperature ovals not superimposed and not exactly located where models and previous observations suggested. On the main oval averaged H3+ CDs span between 1.8 × 1012 cm−2 and 2.8 × 1012 cm−2, while the retrieved temperatures show values between 800 and 950 K. JIRAM indicates a complex relationship among H3+ CDs and temperatures on the Jupiter northern aurora. ©2017. American Geophysical Union. All Rights Reserved.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Dinelli, B. M.; ISAC-CNR, Bologna, Italy, IAPS-INAF, Rome, Italy

Fabiano, F.; ISAC-CNR, Bologna, Italy, Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy

Adriani, A.; IAPS-INAF, Rome, Italy

Altieri, F.; IAPS-INAF, Rome, Italy

Moriconi, M. L.; ISAC-CNR, Bologna, Italy, IAPS-INAF, Rome, Italy

Mura, A.; IAPS-INAF, Rome, Italy

Sindoni, G.; IAPS-INAF, Rome, Italy

Filacchione, G.; IAPS-INAF, Rome, Italy

Tosi, F.; IAPS-INAF, Rome, Italy

Migliorini, A.; IAPS-INAF, Rome, Italy

More authors (19 more)

Language :

English

Title :

Preliminary JIRAM results from Juno polar observations: 1. Methodology and analysis applied to the Jovian northern polar region

Publication date :

2017

Journal title :

Geophysical Research Letters

ISSN :

0094-8276

eISSN :

1944-8007

Publisher :

Blackwell Publishing Ltd

Volume :

Issue :

Pages :

4625-4632

Peer reviewed :

Peer Reviewed verified by ORBi

Funders :

ASI - Agenzia Spaziale Italiana

Available on ORBi :

since 10 August 2017

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Bibliography

Adriani, A., et al. (2014), JIRAM, the Jovian Infrared Auroral Mapper, Space Sci. Rev., 1–54, doi:10.1007/s11214-014-0094-y.
Adriani, A., M. L. Moriconi, A. Mura, F. Tosi, G. Sindoni, R. Noschese, A. Cicchetti, and G. Filacchione (2016), Juno's Earth flyby: The Jovian Infrared Auroral Mapper preliminary results, Astophys. Space Sci., 361, 272, doi:10.1007/s10509-016-2842-9.
Adriani, A., et al. (2017), Preliminary JIRAM results from Juno polar observations: 2. Analysis of the Jupiter southern H 3+ emissions and comparison with the north aurora, Geophys. Res. Lett., doi:10.1002/2017GL072905, in press.
Altieri, F., B. M. Dinelli, A. Migliorini, M. L. Moriconi, G. Sindoni, A. Adriani, A. Mura, and F. Fabiano (2016), Mapping of hydrocarbons and H3+ emissions at Jupiter's north pole using Galileo/NIMS data, Geophys. Res. Lett., 43, 11,558–11,566, doi:10.1002/2016GL070787.
Atreya, S. K. (1986), Atmospheres and Ionospheres of the Outer Planets and Their Satellites, pp. 106–144, Springer-Verlag, New York, and Berlin.
Bagenal, F., et al. (2014), Magnetospheric science objectives of the Juno mission, Space Sci. Rev.,1–69, doi:10.1007/s11214-014-0036-8.
Connerney, J. E. P., M. H. Acuña, N. F. Ness, and T. Satoh (1998), New models of Jupiter's magnetic field constrained by the Io flux tube footprint, J. Geophys. Res., 103(A6), 11,929–11,939, doi:10.1029/97JA03726.
Clarke, J. T., et al. (2004), Jupiter's Aurora, in Jupiter, the Planet, Satellites and Magnetosphere, pp. 639–670, Cambridge Univ. Press, Cambridge, U. K.
Clarke, J. T. (2013), Auroral processes on Jupiter and Saturn, in Auroral Phenomenology and Magnetospheric Processes: Earth And Other Planets, pp. 113–122, AGU, Washington, D. C., doi:10.1029/2011GM001199.
Drossart, P., et al. (1989), Detection of H3+ on Jupiter, Nature, 340, 539–541, doi:10.1038/340539a0.
Grodent, D. (2015), A brief review of ultraviolet auroral emissions on giant planets, Space Sci. Rev., 187, 23–50, doi:10.1007/s11214-014-0052-8.
Grodent, D., J. H. Waite Jr., and J.-C. Gèrard (2001), A self-consistent model of the Jovian auroral thermal structure, J. Geophys. Res., 106, 12,933–12,952, doi:10.1029/2000JA900129.
Hiraki, Y., and C. Tao (2008), Parameterization of ionization rate by auroral electron precipitation in Jupiter, Ann. Geophys., 26, 77–86, doi:10.5194/angeo-26-77-2008.
Lam, H. A., N. Achilleos, S. Miller, J. Tennyson, L. M. Trafton, T. R. Geballe, and G. E. Ballester (1997), A baseline spectroscopic study of the infrared auroras of Jupiter, Icarus, 127, 379–393, doi:10.1006/icar.1997.5698.
Laraia, A. L., R. R. Gamache, J. Lamouroux, I. E. Gordon, and L. S. Rothman (2011), Total internal partition sums to support planetary remote sensing, Icarus, 215, 391–400, doi:10.1016/j.icarus.2011.06.004.
Melin, H., S. Miller, T. Stallard, and D. Grodent (2005), Non-LTE effects on H3+ emission in the Jovian upper atmosphere, Icarus, 178, 97–103, doi:10.1016/j.icarus.2005.04.016.
Miller, S., N. Achilleos, G. E. Ballester, H. A. Lam, J. Tennyson, T. R. Geballe, and L. M. Trafton (1997), Mid-to-low latitude H3+ emission from Jupiter, Icarus, 130, 57–67, doi:10.1006/icar.1997.5813.
Miller, S., T. Stallard, J. Tennyson, and H. Melin (2013), Cooling by H3+ emission, J. Phys. Chem. A, 117, 9770–9777, doi:10.1021/jp312468b.
Moriconi, M. L., et al. (2017), Preliminary JIRAM results from Juno polar observations: 3—Evidence of diffuse methane presence in the Jupiter auroral regions, Geophys. Res. Lett., doi:10.1002/2017GL073592.
Mura, A., et al. (2017), Auroral emission detected by JIRAM L band imager channel during first Juno orbit, Geophys. Res. Lett., doi:10.1002/2017GL072954, in press.
Neale, L., S. Miller, and J. Tennyson (1996), Spectroscopic properties of the H3+ molecule: A new calculated line list, Astrophys. J., 464, 516–520, doi:10.1086/177341.
O'Donoghue, J., et al. (2014), Conjugate observations of Saturn's northern and southern H3+ aurorae, Icarus, 229, 214–220, doi:10.1016/j.icarus.2013.11.009.
Radioti, A., M. Lystrup, B. Bonfond, D. Grodent, and J.-C. Gèrard (2013), Jupiter's aurora in ultraviolet and infrared: Simultaneous observations with the Hubble Space Telescope and the NASA Infrared Telescope Facility, J. Geophys. Res. Space Physics, 118, 2286–2295, doi:10.1002/jgra.50245.
Rothman, L. S., et al. (2013), The HITRAN2012 molecular spectroscopic database, J. Quant. Spectros. Radiat. Transfer, 130, 4–50, doi:10.1016/j.jqsrt.2013.07.002.
Stallard, T., S. Miller, G. Millward, and R. D. Joseph (2002), On the dynamics of the Jovian ionosphere and thermosphere: II. The measurement of H3+ vibrational temperature, column density, and total emission, Icarus, 156, 498–514, doi:10.1006/icar.2001.6793.