Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter

F. Allegrini; J. R. Szalay; D. J. McComas; R. W. Ebert; S. J. Bolton; G. Clark; J. E.P. Connerney; W. S. Kurth; P. Louarn; B. Mauk; A. Pontoni; J. Saur; P. Valek; J. Z. Wang; R. J. Wilson

doi:10.1029/2025GL117406

Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter

F. Allegrini, J. R. Szalay, D. J. McComas, R. W. Ebert, S. J. Bolton, G. Clark, J. E.P. Connerney, W. S. Kurth, P. Louarn, B. Mauk, A. Pontoni, J. Saur, P. Valek, J. Z. Wang, R. J. Wilson

Astrophysical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

We report on observations of negative carbon and oxygen pickup ions (PUIs) originating from dust orbiting Jupiter. The PUIs are observed at altitudes of a few thousand kilometers (∼4,800–10,200 km) above the 1-bar level of Jupiter's atmosphere and up to ∼11,000–15,000 km from the equatorial plane, thus providing constraints on the location of the dust population and its composition. The Jovian Auroral Distributions Experiment–Electron sensors on Juno detect these PUIs because of the combination of a fast-moving spacecraft and the large Keplerian orbital speed of the dust near Jupiter. We demonstrate that this scenario is consistent with the observations. We find a PUI C/O ratio of 10 ± 5 and a PUI energy release of ∼11 ± 9 eV. Electron stimulated desorption is a likely process for creating these PUIs. The dust is well inside the halo population and likely carbonaceous.

Original language	English (US)
Article number	e2025GL117406
Journal	Geophysical Research Letters
Volume	52
Issue number	18
DOIs	https://doi.org/10.1029/2025GL117406
State	Published - Sep 28 2025

All Science Journal Classification (ASJC) codes

Geophysics
General Earth and Planetary Sciences

Keywords

Jupiter
dust
electron stimulated desorption
negative ion
negative pickup ion

Access to Document

10.1029/2025GL117406

Cite this

Allegrini, F., Szalay, J. R., McComas, D. J., Ebert, R. W., Bolton, S. J., Clark, G., Connerney, J. E. P., Kurth, W. S., Louarn, P., Mauk, B., Pontoni, A., Saur, J., Valek, P., Wang, J. Z., & Wilson, R. J. (2025). Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter. Geophysical Research Letters, 52(18), Article e2025GL117406. https://doi.org/10.1029/2025GL117406

@article{7c2bcab70b6e4e27bd512ea7cfba8d94,

title = "Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter",

abstract = "We report on observations of negative carbon and oxygen pickup ions (PUIs) originating from dust orbiting Jupiter. The PUIs are observed at altitudes of a few thousand kilometers (∼4,800–10,200 km) above the 1-bar level of Jupiter's atmosphere and up to ∼11,000–15,000 km from the equatorial plane, thus providing constraints on the location of the dust population and its composition. The Jovian Auroral Distributions Experiment–Electron sensors on Juno detect these PUIs because of the combination of a fast-moving spacecraft and the large Keplerian orbital speed of the dust near Jupiter. We demonstrate that this scenario is consistent with the observations. We find a PUI C/O ratio of 10 ± 5 and a PUI energy release of ∼11 ± 9 eV. Electron stimulated desorption is a likely process for creating these PUIs. The dust is well inside the halo population and likely carbonaceous.",

keywords = "Jupiter, dust, electron stimulated desorption, negative ion, negative pickup ion",

author = "F. Allegrini and Szalay, \{J. R.\} and McComas, \{D. J.\} and Ebert, \{R. W.\} and Bolton, \{S. J.\} and G. Clark and Connerney, \{J. E.P.\} and Kurth, \{W. S.\} and P. Louarn and B. Mauk and A. Pontoni and J. Saur and P. Valek and Wang, \{J. Z.\} and Wilson, \{R. J.\}",

note = "Publisher Copyright: {\textcopyright} 2025. The Author(s).",

year = "2025",

month = sep,

day = "28",

doi = "10.1029/2025GL117406",

language = "English (US)",

volume = "52",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "John Wiley and Sons Inc.",

number = "18",

}

TY - JOUR

T1 - Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter

AU - Allegrini, F.

AU - Szalay, J. R.

AU - McComas, D. J.

AU - Ebert, R. W.

AU - Bolton, S. J.

AU - Clark, G.

AU - Connerney, J. E.P.

AU - Kurth, W. S.

AU - Louarn, P.

AU - Mauk, B.

AU - Pontoni, A.

AU - Saur, J.

AU - Valek, P.

AU - Wang, J. Z.

AU - Wilson, R. J.

PY - 2025/9/28

Y1 - 2025/9/28

N2 - We report on observations of negative carbon and oxygen pickup ions (PUIs) originating from dust orbiting Jupiter. The PUIs are observed at altitudes of a few thousand kilometers (∼4,800–10,200 km) above the 1-bar level of Jupiter's atmosphere and up to ∼11,000–15,000 km from the equatorial plane, thus providing constraints on the location of the dust population and its composition. The Jovian Auroral Distributions Experiment–Electron sensors on Juno detect these PUIs because of the combination of a fast-moving spacecraft and the large Keplerian orbital speed of the dust near Jupiter. We demonstrate that this scenario is consistent with the observations. We find a PUI C/O ratio of 10 ± 5 and a PUI energy release of ∼11 ± 9 eV. Electron stimulated desorption is a likely process for creating these PUIs. The dust is well inside the halo population and likely carbonaceous.

AB - We report on observations of negative carbon and oxygen pickup ions (PUIs) originating from dust orbiting Jupiter. The PUIs are observed at altitudes of a few thousand kilometers (∼4,800–10,200 km) above the 1-bar level of Jupiter's atmosphere and up to ∼11,000–15,000 km from the equatorial plane, thus providing constraints on the location of the dust population and its composition. The Jovian Auroral Distributions Experiment–Electron sensors on Juno detect these PUIs because of the combination of a fast-moving spacecraft and the large Keplerian orbital speed of the dust near Jupiter. We demonstrate that this scenario is consistent with the observations. We find a PUI C/O ratio of 10 ± 5 and a PUI energy release of ∼11 ± 9 eV. Electron stimulated desorption is a likely process for creating these PUIs. The dust is well inside the halo population and likely carbonaceous.

KW - Jupiter

KW - dust

KW - electron stimulated desorption

KW - negative ion

KW - negative pickup ion

UR - https://www.scopus.com/pages/publications/105016749571

UR - https://www.scopus.com/inward/citedby.url?scp=105016749571&partnerID=8YFLogxK

U2 - 10.1029/2025GL117406

DO - 10.1029/2025GL117406

M3 - Article

AN - SCOPUS:105016749571

SN - 0094-8276

VL - 52

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 18

M1 - e2025GL117406

ER -

Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this