Io Hot Spot Distribution Detected by Juno/JIRAM

被引：14

作者：

Zambon, F. ^{[1
]}

Mura, A. ^{[1
]}

Lopes, R. M. C. ^{[2
]}

Rathbun, J. ^{[3
]}

Tosi, F. ^{[1
]}

Sordini, R. ^{[1
]}

Noschese, R. ^{[1
]}

Ciarniello, M. ^{[1
]}

Cicchetti, A. ^{[1
]}

Adriani, A. ^{[1
]}

Agostini, L. ^{[4
,5
]}

Filacchione, G. ^{[1
]}

Grassi, D. ^{[1
]}

Piccioni, G. ^{[1
]}

Plainaki, C.

Sindoni, G. ^{[6
]}

Turrini, D. ^{[7
]}

Brooks, S. ^{[2
]}

Hansen-Koharcheck, C. ^{[3
]}

Bolton, S. ^{[8
]}

机构：

[1] Ist Astrofis & Planetol Spaziali INAF IAPS, Ist Nazl Astrofis, Rome, Italy

[2] California Inst Technol, Jet Prop Lab, Pasadena, CA USA

[3] Planetary Sci Inst, Tucson, AZ USA

[4] Ctr Ateneo Studi & Att Spaziali CISAS Giuseppe Col, Padua, Italy

[5] Ist Nazl Astrofis Osservatorio Astron Padova INAF, Padua, Italy

[6] Agenzia Spaziale Italiana, Rome, Italy

[7] Ist Nazl Astrofis Osservatorio Astrofis Torino INA, Turin, Italy

[8] Southwest Res Inst, San Antonio, TX USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2023年 / 50卷 / 01期

关键词：

Io; planetary volcanism; hotspots; remote sensing; surfaces; ADAPTIVE OPTICS OBSERVATIONS; VOLCANIC ACTIVITY; SPATIAL-DISTRIBUTION; GLOBAL DISTRIBUTION; GALILEO NIMS; 100; NIGHTS; VARIABILITY; HORIZONS; PATERA; PELE;

D O I：

10.1029/2022GL100597

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In this work, we present the most updated catalog of Io hot spots based on Juno/JIRAM data. We find 242 hot spots, including 23 previously undetected. Over the half of the new hot spots identified, are located at high northern and southern latitudes (>70 degrees). We observe a latitudinal variability and a larger concentration of hot spots in the polar regions, in particular in the North. The comparison between JIRAM and the most recent Io hot spot catalogs listing power output (Veeder et al., 2015, ; de Kleer, de Pater, et al., 2019, ), shows JIRAM detected 63% and 88% of the total number of hot spots, respectively. Furthermore, JIRAM observed 16 of the 34 faint hot spots previously identified. JIRAM data revealed thermal emission from 5 dark pater AE inferred to be active from color ratio images, thus confirming that these are hot spots.

引用

页数：10

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