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AIMS: To demonstrate and test the capability of the next generation of low-frequency radio telescopes to perform high resolution observations across intra-continental baselines. Jupiter's strong burst emission is used to perform broadband…

Astrophysics · Physics 2008-09-17 A. Nigl , P. Zarka , J. Kuijpers , H. Falcke , L. Baehren , L. Denis

Occultations of the Jovian low frequency radio emissions by the Galilean moons have been observed by the PWS instrument of the Galileo spacecraft. We show that the ExPRES (Exoplanetary and Planetary Radio Emission Simulator) code accurately…

Instrumentation and Methods for Astrophysics · Physics 2021-10-28 B. Cecconi , C. K. Louis , C. Muñoz Crego , C. Vallat

The detection of radio emission from an exoplanet would constitute the best way to determine its magnetic field. Indeed, the presence of a planetary magnetic field is a necessary condition for radio emission via the Cyclotron Maser…

Earth and Planetary Astrophysics · Physics 2023-12-08 Jean-Mathias Grießmeier , N. V. Erkaev , C. Weber , H. Lammer , V. A. Ivanov , P. Odert

We consider the magnetic interaction of exoplanets orbiting M-dwarfs, calculating the expected Poynting flux carried upstream along Alfv\'{e}n wings to the central star. A region of emission analogous to the Io footprint observed in…

Earth and Planetary Astrophysics · Physics 2018-02-28 S. Turnpenney , J. D. Nichols , G. A. Wynn , M. R. Burleigh

The search for radio signals from exoplanets or star-planet interactions is a topic of major scientific interest, as it is likely the best way to detect and measure a planetary magnetic field and, therefore, to probe the inner structure of…

Earth and Planetary Astrophysics · Physics 2026-03-11 C. K. Louis , A. Loh , P. Zarka , L. Lamy , E. Mauduit , J. N. Girard , J. -M. Griessmeier , B. Cecconi , Q. Nénon , S. Corbel

Recent observations of long period radio transients, such as GLEAM-X J0704-37 and ILTJ1101 + 5521, have revealed a previously unrecognized population of galactic radio transient sources associated with white dwarf - M dwarf binaries. It is…

High Energy Astrophysical Phenomena · Physics 2025-09-12 Yici Zhong , Elias R. Most

Decametric (DAM) radio emissions are one of the main windows through which one can reveal and understand the Jovian magnetospheric dynamics and its interaction with the moons. DAMs are generated by energetic electrons through…

Earth and Planetary Astrophysics · Physics 2020-03-03 Yuming Wang , Xianzhe Jia , Chuanbing Wang , Shui Wang , V. Krupar

Detection of radio emission from Jupiter was identified quickly as being due to its planetary-scale magnetic field. Subsequent spacecraft investigations have revealed that many of the planets, and even some moons, either have or have had…

Earth and Planetary Astrophysics · Physics 2024-06-25 T. Joseph W. Lazio

We present the first X-ray observation of Jupiter by XMM-Newton. Images taken with the EPIC cameras show prominent emission, essentially all confined to the 0.2-2.0 keV band, from the planet's auroral spots; their spectra can be modelled…

Recent low-frequency radio observations suggest that some nearby M dwarfs could be interacting magnetically with undetected close-in planets, powering the emission via the electron cyclotron maser (ECM) instability. Confirmation of such a…

Earth and Planetary Astrophysics · Physics 2023-07-26 Robert D. Kavanagh , Harish K. Vedantham

We conducted the first dedicated search for signatures of exoplanet-exomoon interactions using the Giant Metrewave Radio Telescope (GMRT) as part of the radio-loud exoplanet-exomoon survey (RLEES). Due to stellar tidal heating, irradiation,…

Earth and Planetary Astrophysics · Physics 2022-12-14 Mayank Narang , Apurva V. Oza , Kaustubh Hakim , Manoj Puravankara , Ravinder K. Banyal , Daniel P. Thorngren

The electron-cyclotron maser instability is widespread in the Universe, producing, e.g., radio emission of the magnetized planets and cool substellar objects. Diagnosing the parameters of astrophysical radio sources requires comprehensive…

Solar and Stellar Astrophysics · Physics 2015-06-04 A. A. Kuznetsov , V. G. Vlasov

Magnetized exoplanets can serve as the source of auroral radio emissions, allowing us to characterize the magnetospheric properties of these planets. Successful detections of auroral radio emissions from brown dwarfs, as well as from…

Earth and Planetary Astrophysics · Physics 2023-12-27 Yuta Shiohira , Yuka Fujii , Hajime Kita , Tomoki Kimura , Yuka Terada , Keitaro Takahashi

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

The electron-cyclotron maser instability (ECMI) is responsible for generation of the planetary auroral radio emissions. Most likely, the same mechanism produces radio bursts from ultracool dwarfs. We investigate amplification of plasma…

Solar and Stellar Astrophysics · Physics 2011-01-17 Alexey A. Kuznetsov

Context: Active stars possess magnetized wind that has a direct impact on planets that can lead to radio emission. Mercury is a good test case to study the effect of the solar wind and interplanetary magnetic field on radio emission driven…

Earth and Planetary Astrophysics · Physics 2016-11-09 J. Varela , V. Reville , A. S. Brun , F. Pantellini , P. Zarka

Context. Close-in giant extrasolar planets (''Hot Jupiters'') are believed to be strong emitters in the decametric radio range. Aims. We present the expected characteristics of the low-frequency magnetospheric radio emission of all…

Astrophysics · Physics 2008-12-18 J. -M. Grießmeier , P. Zarka , H. Spreeuw

The visible and infrared Moon And Jupiter Imaging Spectrometer (MAJIS), aboard the JUpiter ICy Moons Explorer (JUICE) spacecraft, will characterize the composition of the surfaces and atmospheres of the Jupiter system. Prior to the launch,…

[abridged] Measurements of relative isotope abundances can provide unique insights into the formation and evolution histories of celestial bodies. The five stable isotopes of titanium are used to study the early history of the solar system…

Earth and Planetary Astrophysics · Physics 2021-11-24 Dilovan B. Serindag , Ignas A. G. Snellen , Paul Mollière