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Related papers: Overview of Saturn lightning observations

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On day 138 of 2010, the plume of dust and gas emerging from Enceladus' South Polar Terrain passed between the Sun and the Cassini spacecraft. This solar occultation enabled Cassini's Ultraviolet Imaging Spectrograph (UVIS) and the Visual…

Earth and Planetary Astrophysics · Physics 2018-01-25 M. M. Hedman , D. Dhingra , P. D. Nicholson , C. J. Hansen , G. Portyankina , S. Ye , Y. Dong

The solar neutron detector SEDA-FIB onboard the International Space Station (ISS) has detected several events from the solar direction associated with three large solar flares observed on March 5th (X1.1), 7th (X5.4), and 9th (M6.3) of…

Solar and Stellar Astrophysics · Physics 2018-06-19 K. Koga , H. Matsumoto , O. Okudaira , T. Goka , T. Obara , S. Masuda , Y. Muraki , S. Shibata , T. Yamamoto

Saturn is ringing weakly. Exquisite data from the Cassini mission reveal the presence of f-mode oscillations as they excite density waves in Saturn's rings. These oscillations have displacement amplitudes of order a metre on Saturn's…

Earth and Planetary Astrophysics · Physics 2019-09-04 Yanqin Wu , Yoram Lithwick

Joint evaluation of different meteor observation types support the better understanding of both the meteor phenomenon and the terrestrial atmosphere. Two types of examples are presented in this work, linking ionospheric effects to specific…

Instrumentation and Methods for Astrophysics · Physics 2021-08-04 Á. Kereszturi , V. Barta , I. Bondár , Cs. Czanik , A. Igaz , P. Mónus , D. Rezes , L. Szabados , B. D. Pál

As they keep cooling and contracting, Solar System giant planets radiate more energy than they receive from the Sun. Applying the first and second principles of thermodynamics, one can determine their cooling rate, luminosity, and…

Earth and Planetary Astrophysics · Physics 2013-04-24 Jérémy Leconte , Gilles Chabrier

The spatial distribution and polarization of Saturn narrowband (NB) emissions have been studied by using Cassini Radio and Plasma Wave Sciences data and goniopolarimetric data obtained through an inversion algorithm with a preset source…

Some wave features found in the C-ring of Saturn appear to be excited by resonances with normal mode oscillations of the planet. The waves are found at locations in the rings where the ratio of orbital to oscillation frequencies is given by…

Earth and Planetary Astrophysics · Physics 2015-06-18 Mark S. Marley

Visible and near-infrared spectra of transiting hot Jupiter planets have recently been observed, revealing some of the atmospheric constituents of their atmospheres. In the near future, it is probable that primary and secondary eclipse…

Solar and Stellar Astrophysics · Physics 2015-05-27 E. Pallé , M. R. Zapatero Osorio , A. García Muñoz

Remarkable progress has been made in understanding turbulent astrophysical plasmas in past decades including, notably, the solar wind and the interstellar medium. In the case of the solar wind, much of this progress has relied on in situ…

Solar and Stellar Astrophysics · Physics 2019-04-12 Tim Bastian , James Cordes , Justin Kasper , Adam Kobelski , Kelly Korreck , Gregory Howe , Steven Spangler , Chadi Salem , Angelos Vourlidas

Certain spiral density waves in Saturn's rings are generated through resonances with planetary normal modes, making them valuable probes of Saturn's internal structure. Previous research has primarily focused on the rotation rates of these…

Investigating the overall brightness of planets (and moons) provides insight into their envelopes and energy budgets [1, 2, 3, 4]. Titan phase curves (a representation of overall brightness vs. Sun-object-observer phase angle) have been…

Earth and Planetary Astrophysics · Physics 2017-04-26 Antonio García Muñoz , Panayotis Lavvas , Robert A. West

Radio wavelength observations of solar system bodies are a powerful method of probing many characteristics of those bodies. From surface and subsurface, to atmospheres (including deep atmospheres of the giant planets), to rings, to the…

The aim of this short contribution is to report some preliminary results on a theoretical model of the internal structure of Titan, the satellite of Saturn. All the calculations were performed within the SK theory of dense matter. The…

Astrophysics · Physics 2011-02-19 G. Pavicic , V. Celebonovic

We report the discovery of several large "propeller" moons in the outer part of Saturn's A ring, objects large enough to be followed over the 5-year duration of the Cassini mission. These are the first objects ever discovered that can be…

We construct Saturn equatorial neutral temperature and density profiles of H, H$_2$, He, and CH$_4$, between 10$^{-12}$ and 1 bar using measurements from Cassini's Ion Neutral Mass Spectrometer (INMS) taken during the spacecraft's final…

Earth and Planetary Astrophysics · Physics 2021-11-03 J. M. Chadney , T. T. Koskinen , X. Hu , M. Galand , P. Lavvas , Y. C. Unruh , J. Serigano , S. M. Hörst , R. V. Yelle

We present novel observations utilising the Cassini spacecraft to conduct an observing campaign for stellar astronomy from a vantage point in the outer solar system. By exploiting occultation events in which Mira passed behind the Saturnian…

Instrumentation and Methods for Astrophysics · Physics 2013-06-24 Paul N. Stewart , Peter G. Tuthill , Matthew M. Hedman , Philip D. Nicholson , James P. Lloyd

Radio telescopes observe extremely faint emission from astronomical objects, ranging from compact sources to large scale structures that can be seen across the whole sky. Satellites actively transmit at radio frequencies (particularly at…

Instrumentation and Methods for Astrophysics · Physics 2025-04-17 M. Peel , S. Eggl , M. L. Rawls , H. Qiu , D. L. Clements

Planetary radars have obtained unique science measurements about solar system bodies and they have provided orbit determinations allowing spacecraft to be navigated throughout the solar system. Notable results have been on Venus, Earth's…

Tidal dissipation inside giant planets is important for the orbital evolution of their natural satellites. It is conventionally treated by parameterized equilibrium tidal theory, in which the tidal torque declines rapidly with distance, and…

Earth and Planetary Astrophysics · Physics 2017-12-13 Jing Luan , Jim Fuller , Eliot Quataert

The Cassini mission crossed the source region of the Saturn kilometric radiation (SKR) on 17 October 2008. On this occasion, the Radio and Plasma Wave Science (RPWS) experiment detected both local and distant radio sources, while plasma…

Earth and Planetary Astrophysics · Physics 2015-03-25 L. Lamy , B. Cecconi , P. Zarka , P. Canu , P. Schippers , W. S. Kurth , R. L. Mutel , D. A. Gurnett , J. D. Menietti , P. Louarn
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