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Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora: comparing emissions from H, H2 and H3+ at a high spatial resolution

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Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora: comparing emissions from H, H2 and H3+ at a high spatial resolution. / Melin, H.; Stallard, T.; Miller, S. et al.
In: Geophysical Research Letters, Vol. 38, No. 15, L15203, 01.08.2011.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Melin, H, Stallard, T, Miller, S, Gustin, J, Galand, M, Badman, SV, Pryor, WR, O'donoghue, J, Brown, RH & Baines, KH 2011, 'Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora: comparing emissions from H, H2 and H3+ at a high spatial resolution', Geophysical Research Letters, vol. 38, no. 15, L15203. https://doi.org/10.1029/2011GL048457

APA

Melin, H., Stallard, T., Miller, S., Gustin, J., Galand, M., Badman, S. V., Pryor, W. R., O'donoghue, J., Brown, R. H., & Baines, K. H. (2011). Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora: comparing emissions from H, H2 and H3+ at a high spatial resolution. Geophysical Research Letters, 38(15), Article L15203. https://doi.org/10.1029/2011GL048457

Vancouver

Melin H, Stallard T, Miller S, Gustin J, Galand M, Badman SV et al. Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora: comparing emissions from H, H2 and H3+ at a high spatial resolution. Geophysical Research Letters. 2011 Aug 1;38(15):L15203. doi: 10.1029/2011GL048457

Author

Melin, H. ; Stallard, T. ; Miller, S. et al. / Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora : comparing emissions from H, H2 and H3+ at a high spatial resolution. In: Geophysical Research Letters. 2011 ; Vol. 38, No. 15.

Bibtex

@article{71fcc33f614745ae80567b300f860856,
title = "Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora: comparing emissions from H, H2 and H3+ at a high spatial resolution",
abstract = "Here, for the first time, temporally coincident and spatially overlapping Cassini VIMS and UVIS observations of Saturn's southern aurora are presented. Ultraviolet auroral H and H2 emissions from UVIS are compared to infrared H3+ emission from VIMS. The auroral emission is structured into three arcs – H, H2 and H3+ are morphologically identical in the bright main auroral oval (∼73°S), but there is an equatorward arc that is seen predominantly in H (∼70°S), and a poleward arc (∼74°S) that is seen mainly in H2 and H3+. These observations indicate that, for the main auroral oval, UV emission is a good proxy for the infrared H3+ morphology (and vice versa), but for emission either poleward or equatorward this is no longer true. Hence, simultaneous UV/IR observations are crucial for completing the picture of how the atmosphere interacts with the magnetosphere.",
keywords = "Saturn, aurora, infrared, ultraviolet",
author = "H. Melin and T. Stallard and S. Miller and J. Gustin and M. Galand and Badman, {S. V.} and Pryor, {W. R.} and J. O'donoghue and Brown, {R. H.} and Baines, {K. H.}",
note = "Copyright 2011 by the American Geophysical Union.",
year = "2011",
month = aug,
day = "1",
doi = "10.1029/2011GL048457",
language = "English",
volume = "38",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",
number = "15",

}

RIS

TY - JOUR

T1 - Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora

T2 - comparing emissions from H, H2 and H3+ at a high spatial resolution

AU - Melin, H.

AU - Stallard, T.

AU - Miller, S.

AU - Gustin, J.

AU - Galand, M.

AU - Badman, S. V.

AU - Pryor, W. R.

AU - O'donoghue, J.

AU - Brown, R. H.

AU - Baines, K. H.

N1 - Copyright 2011 by the American Geophysical Union.

PY - 2011/8/1

Y1 - 2011/8/1

N2 - Here, for the first time, temporally coincident and spatially overlapping Cassini VIMS and UVIS observations of Saturn's southern aurora are presented. Ultraviolet auroral H and H2 emissions from UVIS are compared to infrared H3+ emission from VIMS. The auroral emission is structured into three arcs – H, H2 and H3+ are morphologically identical in the bright main auroral oval (∼73°S), but there is an equatorward arc that is seen predominantly in H (∼70°S), and a poleward arc (∼74°S) that is seen mainly in H2 and H3+. These observations indicate that, for the main auroral oval, UV emission is a good proxy for the infrared H3+ morphology (and vice versa), but for emission either poleward or equatorward this is no longer true. Hence, simultaneous UV/IR observations are crucial for completing the picture of how the atmosphere interacts with the magnetosphere.

AB - Here, for the first time, temporally coincident and spatially overlapping Cassini VIMS and UVIS observations of Saturn's southern aurora are presented. Ultraviolet auroral H and H2 emissions from UVIS are compared to infrared H3+ emission from VIMS. The auroral emission is structured into three arcs – H, H2 and H3+ are morphologically identical in the bright main auroral oval (∼73°S), but there is an equatorward arc that is seen predominantly in H (∼70°S), and a poleward arc (∼74°S) that is seen mainly in H2 and H3+. These observations indicate that, for the main auroral oval, UV emission is a good proxy for the infrared H3+ morphology (and vice versa), but for emission either poleward or equatorward this is no longer true. Hence, simultaneous UV/IR observations are crucial for completing the picture of how the atmosphere interacts with the magnetosphere.

KW - Saturn

KW - aurora

KW - infrared

KW - ultraviolet

U2 - 10.1029/2011GL048457

DO - 10.1029/2011GL048457

M3 - Journal article

VL - 38

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 15

M1 - L15203

ER -