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The intriguing circumpolar cyclone pattern at Jupiter's poles raises fundamental questions about how these systems are organized vertically and, further, how the planet's internal heat shapes and sustains them in the absence of solar…

Global maps of Jupiter's atmospheric temperatures, gaseous composition and aerosol opacity are derived from a programme of 5-20 $\mu$m mid-infrared spectroscopic observations using the Texas Echelon Cross Echelle Spectrograph (TEXES) on…

Earth and Planetary Astrophysics · Physics 2017-06-14 L. N. Fletcher , T. K. Greathouse , G. S. Orton , J. A. Sinclair , R. S. Giles , P. G. J. Irwin , T. Encrenaz

The Cassini spacecraft made a gravity assist flyby of Jupiter in December 2000. The Imaging Science Subsystem (ISS) acquired images of the planet that covered the visual range with filters sensitive to the distribution of clouds and hazes,…

Earth and Planetary Astrophysics · Physics 2019-05-09 Iñaki Ordóñez-Etxeberria , Ricardo Hueso , Agustin Sánchez-Lavega , Santiago Pérez-Hoyos

Jupiter's tropospheric composition is studied using high resolution spatially-resolved 5-micron observation from the CRIRES instrument at the Very Large Telescope. The high resolving power (R=96,000) allows us to spectrally resolve the line…

Earth and Planetary Astrophysics · Physics 2017-10-11 Rohini S. Giles , Leigh N. Fletcher , Patrick G. J. Irwin

We present a technique for creating a longitude-resolved image of Jupiter's thermal radio emission. The technique has been applied to VLA data taken on 25 January 1996 at a wavelength of 2 cm. A comparison with infrared data shows a good…

Astrophysics · Physics 2009-11-11 R. J. Sault , C. Engel , Imke de Pater

Jupiter was imaged during the Science Demonstration of the MCAO Demonstrator (MAD) at the European Southern Observatory's UT3 Very Large Telescope unit. Io and Europa were used as natural guide stars on either side of Jupiter, separated…

Although core helium-burning red clump (RC) stars are faint at ultraviolet wavelengths, their ultraviolet-optical color is a unique and accessible probe of their physical properties. Using data from the GALEX All Sky Imaging Survey, Gaia…

Solar and Stellar Astrophysics · Physics 2019-02-20 Steven Mohammed , David Schiminovich , Keith Hawkins , Benjamin Johnson , Dun Wang , David W. Hogg

We present a study of the structure and dynamics of the star forming region B1-IRS (IRAS 03301+3057) using the properties of different molecules at high angular resolution (~4''). We have used VLA observations of NH3, CCS, and H2O masers at…

One of Jupiter's most prominent atmospheric features, the Great Red Spot (GRS), has been observed for more than two centuries, yet little is known about its structure and dynamics below its observed cloud-level. While its anticyclonic…

Earth and Planetary Astrophysics · Physics 2019-04-10 Eli Galanti , Yohai Kaspi , Frederik J. Simons , Daniele Durante , Marzia Parisi , Scott J. Bolton

We present the results from NH$_{3}$ mapping observations towards 34 regions identified by the Red MSX Source (RMS) survey. We have used the Australia Telescope Compact Array to map ammonia (1,1) and (2,2) inversion emission spectra at a…

Astrophysics of Galaxies · Physics 2018-11-28 S. J. Billington , J. S. Urquhart , C. Figura , D. J. Eden , T. J. T. Moore

The Great Red Spot at about latitude $22^{\circ}S$ of Jupiter has been observed for hundreds of years, yet the driving mechanism on the formation of this giant anticyclone still remains unclear. Two scenarios were proposed to explain its…

Earth and Planetary Astrophysics · Physics 2022-08-03 Tao Cai , Kwing L. Chan , Kim-Chiu Chow

We present the results of ammonia observations towards 66 massive star forming regions identified by the Red MSX source survey. We have used the Green Bank Telescope and the K-band focal plane array to map the ammonia NH3 (1,1) and (2,2)…

Astrophysics of Galaxies · Physics 2015-08-19 J. S. Urquhart , C. C. Figura , T. J. T. Moore , T. Csengeri , S. L. Lumsden , T. Pillai , M. A. Thompson , D. J. Eden , L. K. Morgan

Color ratios derived from molecular hydrogen emissions provide valuable diagnostics for the energy of precipitating electrons and the structure of the auroral atmosphere. We aim to characterize the horizontal and vertical variability of…

Earth and Planetary Astrophysics · Physics 2026-03-25 J. Vinesse , B. Bonfond , B. Benmahi , A. Moirano , D. Grodent , T. K. Greathouse , V. Hue , G. Sicorello , L. A. Head , G. R. Gladstone , M. W. Davis

We present multi-wavelength measurements of the thermal, chemical, and cloud contrasts associated with the visibly dark formations (also known as 5-$\mu$m hot spots) and intervening bright plumes on the boundary between Jupiter's Equatorial…

Reflected sunlight observations from the Ultraviolet Spectrograph (UVS) on the Juno spacecraft were used to study the distribution of acetylene (C$_2$H$_2$) at Jupiter's south pole. We find that the shape of the C$_2$H$_2$ absorption…

We present the first ultraviolet spectra of Jupiter Trojans. These observations were carried out using the Space Telescope Imaging Spectrograph on the Hubble Space Telescope and cover the wavelength range 200-550 nm at low resolution. The…

Earth and Planetary Astrophysics · Physics 2019-04-17 Ian Wong , Michael E. Brown , Jordana Blacksberg , Bethany L. Ehlmann , Ahmed Mahjoub

We observed Jupiter at wavelengths near 2 cm with the Karl G. Jansky Very Large Array in February 2015. These frequencies are mostly sensitive to variations in ammonia abundance and probe between ~0.5-2.0 bars of pressure in Jupiter's…

Earth and Planetary Astrophysics · Physics 2017-01-23 Richard Cosentino , Bryan Butler , Bob Sault , Raul Morales-Juberias , Amy Simon , Imke de Pater

Several recent studies have reported the detection of an anomalous color spread along the red giant branch (RGB) of some globular clusters (GC) that appears only when color indices including a near ultraviolet band (such as Johnson U or…

Astrophysics of Galaxies · Physics 2015-05-20 C. Lardo , M. Bellazzini , E. Pancino , E. Carretta , A. Bragaglia , E. Dalessandro

Rotational modulations are observed on brown dwarfs and directly imaged exoplanets, but the underlying mechanism is not well understood. Here, we analyze Jupiter's rotational light curves at 12 wavelengths from the ultraviolet (UV) to the…

Structural changes of self-organized vortices in Jupiter atmospheres such as Great Red Spot (GRS) and White Ovals are demonstrated using an electrostatically bounded charged dust cloud in an unbounded streaming plasma as the prototype for…

Plasma Physics · Physics 2018-11-26 Modhuchandra Laishram , Ping Zhu , Devendra Sharma