English
Related papers

Related papers: Exoplanetary radio emission predictions and detect…

200 papers

Currently, our understanding of magnetic fields in exoplanets remains limited compared to those within our solar system. Planets with magnetic fields emit radio signals primarily due to the Electron Cyclotron Maser Instability mechanism. In…

Earth and Planetary Astrophysics · Physics 2024-04-25 Fatemeh Bagheri , Anshuman Garga , Ramon E. Lopez

We predict the radio flux densities of the extrasolar planets in the current census, making use of an empirical relation--the radiometric Bode's Law--determined from the five ``magnetic'' planets in the solar system (Earth and the four gas…

Nearly everything we know about extrasolar planets to date comes from optical astronomy. While exoplanetary aurorae are predicted to be bright at low radio frequencies (< 1 GHz), we consider the effect of an exoplanet transit on radio…

Earth and Planetary Astrophysics · Physics 2019-01-16 Benjamin J. S. Pope , Paul Withers , Joseph R. Callingham , Marissa F. Vogt

We present radio observations made towards the exoplanets Qatar-1b and WASP-80b near 150~MHz with the Giant Meterwave Radio Telescope. These targets are relatively nearby irradiated giant exoplanets, a hot Jupiter and a hot Saturn, with…

Earth and Planetary Astrophysics · Physics 2020-11-10 D. A. Green , N. Madhusudhan

Like the magnetised planets in our Solar System, magnetised exoplanets should emit strongly at radio wavelengths. Radio emission directly traces the planetary magnetic fields and radio detections can place constraints on the physical…

Earth and Planetary Astrophysics · Physics 2018-05-03 C. R. Lynch , Tara Murphy , E. Lenc , D. L. Kaplan

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 majority of searches for radio emission from exoplanets have to date focused on short period planets, i.e., the so-called hot Jupiter type planets. However, these planets are likely to be tidally locked to their host stars and may not…

Earth and Planetary Astrophysics · Physics 2018-05-02 Eamon O'Gorman , Colm P. Coughlan , Wouter Vlemmings , Eskil Varenius , Sandeep Sirothia , Tom P. Ray , Hans Olofsson

Magnetized exoplanets are expected to emit auroral cyclotron radiation in the radio regime due to the interactions between their magnetospheres, the interplanetary magnetic field, and the stellar wind. Prospective extrasolar auroral…

Earth and Planetary Astrophysics · Physics 2025-08-14 Asaf Kaya , Tansu Daylan

Radio emission from star planet interactions (SPI) beyond our solar system has yet to be firmly detected, primarily due to challenges such as weak signals, directional beaming effects, and low frequency emissions that are blocked by the…

Solar and Stellar Astrophysics · Physics 2025-11-17 J. J. Chebly , C. K. Louis , A. Strugarek , J. D. Alvarado-Gómez , P. Zarka

We present a new analysis of the expected magnetospheric radio emission from extrasolar giant planets for a distance limited sample of the nearest known extrasolar planets. Using recent results on the correlation between stellar X-ray flux…

Astrophysics · Physics 2009-11-10 Ian R. Stevens

We present results from a search for radio emission in 77 stellar systems hosting 140 exoplanets, predominantly within 17.5 pc using the Very Large Array (VLA) at $4-8$ GHz. This is the largest and most sensitive search to date for radio…

Earth and Planetary Astrophysics · Physics 2024-04-29 Kevin N. Ortiz Ceballos , Yvette Cendes , Edo Berger , Peter K. G. Williams

In the past two decades, it has been convincingly argued that magnetospheric radio emissions, of cyclotron maser origin, can occur for exoplanetary systems, similarly as solar planets, with the same periodicity as the planetary orbit. These…

Earth and Planetary Astrophysics · Physics 2023-11-17 E. Mauduit , J. -M. Griessmeier , P. Zarka , J. D. Turner

There are several methods for indirectly detecting exoplanets, such as transit, radial velocity, astrometry, and the conventional gravitational microlensing approach. These methods rely on observing the effects of exoplanets on the emission…

Earth and Planetary Astrophysics · Physics 2024-07-09 Fatemeh Bagheri , Ramon E. Lopez , Amir Shahmoradi

The extraordinary astrometric accuracy of radio interferometry creates an important and unique opportunity for the discovery and characterization of exo-planets. Currently, the Very Long Baseline Array can routinely achieve better than 100…

Astrophysics · Physics 2007-05-23 Geoffrey C. Bower , Alberto Bolatto , Eric Ford , Paul Kalas , Jim Ulvestad

In this paper we consider the magnetosphere-ionosphere (M-I) coupling at Jupiter-like exoplanets with internal plasma sources such as volcanic moons, and we have determined the best candidates for detection of these radio emissions by…

Earth and Planetary Astrophysics · Physics 2015-06-11 J. D. Nichols

The search for radio emission from extra-solar planets has so far been unsuccessful. Much of the effort in modelling the predicted emission has been based on the analogy with the well-known emission from Jupiter. Unlike Jupiter, however,…

Astrophysics · Physics 2009-11-13 M. Jardine , A. C. Cameron

The Square Kilometre Array (SKA) will make ground breaking discoveries in pulsar science. In this chapter we outline the SKA surveys for new pulsars, as well as how we will perform the necessary follow-up timing observations. The SKA's wide…

Magnetic fields of exoplanets are important in shielding the planets from cosmic rays and interplanetary plasma. Due to the interaction with the electrons from their host stars, the exoplanetary magnetospheres are predicted to have both…

Earth and Planetary Astrophysics · Physics 2020-05-27 Yang Gao , Lei Qian , Di Li

The vast collecting area of the Square Kilometre Array (SKA), harnessed by sensitive receivers, flexible digital electronics and increased computational capacity, could permit the most sensitive and exhaustive search for…

The future new-generation radio telescope SKA (Square Kilometre Array) and its precursors will provide a rapidly growing number of polarized radio sources. Hundred and thousands polarized background sources can be measured towards nearby…

Astrophysics · Physics 2007-12-03 T. G. Arshakian , R. Stepanov , R. Beck , P. Frick , M. Krause
‹ Prev 1 2 3 10 Next ›