On the feasibility of extra-solar planetary detection at very low ratio frequencies

Lecacheux, A.

doi:10.1007/3-540-54752-5_181

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…Early searches were conducted by Yantis et al (1977) and Lecacheux (1991). Because of the lack of any known extrasolar planets at the time, these were necessarily blind searches.…”

Section: Introductionmentioning

confidence: 99%

The Radiometric Bode’s Law and Extrasolar Planets

Lazio

Farrell

Dietrick³

et al. 2004

ApJ

126

177

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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 (the Earth and the four gas giants). Radio emission from these planets results from solar wind-powered electron currents depositing energy in the magnetic polar regions. We find that most of the known extrasolar planets should emit in the frequency range 10-1000 MHz and, under favorable circumstances, have typical flux densities as large as 1 mJy. We also describe an initial, systematic effort to search for radio emission in low radio frequency images acquired with the Very Large Array (VLA). The limits set by the VLA images (%300 mJy) are consistent with, but do not provide strong constraints on, the predictions of the model. Future radio telescopes, such as the Low Frequency Array and the Square Kilometer Array, should be able to detect the known extrasolar planets or place austere limits on their radio emission. Planets with masses much lower than those in the current census will probably radiate below 10 MHz and will require a space-based array.

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“…Early searches were conducted by Yantis et al (1977) and Lecacheux (1991). Because of the lack of any known extrasolar planets at the time, these were necessarily blind searches.…”

Section: Introductionmentioning

confidence: 99%

The Radiometric Bode’s Law and Extrasolar Planets

Lazio

Farrell

Dietrick³

et al. 2004

ApJ

126

177

View full text Add to dashboard Cite

show abstract

“…Other wavelengths Radio Detection. The detection of giant exoplanet's magnetospheric emission, similar to Jupiter, has been predicted since a long time (Lecacheux 1991). But it is more efficient for hot Jupiters (Zarka et al 2001).…”

Section: Methodsmentioning

confidence: 99%

Future Exoplanet Research: Science Questions and How to Address Them

Schneider

2018

Handbook of Exoplanets

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Started approximately in the late 1980s, exoplanetology has up to now unveiled the main gross bulk characteristics of planets and planetary systems. In the future it will benefit from more and more large telescopes and advanced space missions. These instruments will dramatically improve their performance in terms of photometric precision, detection speed, multipixel imaging, high-resolution spectroscopy, allowing to go much deeper in the knowledge of planets.Here we outline some science questions which should go beyond these standard improvements and how to address them. Our prejudice is that one is never too speculative: experience shows that the speculative predictions initially not accepted by the community have been confirmed several years later (like spectrophotometry of transits or circumbinary planets).

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“…This timemodulation of radio signals augments the detectability of exoplanets by FAST. The idea of direct radio detection of exoplanets was first suggested by Lecacheux (1991). To search for exomoons, we count on interaction of the magnetic field of extrasolar planets with plasmas from exomoons (Zarka 2007).…”

Section: Selection Of Data and Methods Of Analysismentioning

confidence: 99%

Search for possible exomoons with the FAST telescope

Lukić

2017

Res. Astron. Astrophys.

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Our knowledge of the Solar System, encourages us to beleive that we might expect exomoons to be present around some of the known exoplanets. With present hardware and existing optical astronomy methods we shall not be able to find exomoons at least 10 years from now and even then, it will be a hard task to detect them. Using data from the Exoplanet Orbit Database (EOD) we find stars with Jovian exoplanets within 50 light years. Most of them will be fully accessible by the new radio telescope, The Fivehundred-meter Aperture Spherical radio Telescope (FAST) under construction, now in the test phase. We suggest radio astronomy based methods to search for possible exomoons around two exoplanets.

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On the feasibility of extra-solar planetary detection at very low ratio frequencies

Cited by 5 publications

References 6 publications

The Radiometric Bode’s Law and Extrasolar Planets

The Radiometric Bode’s Law and Extrasolar Planets

Future Exoplanet Research: Science Questions and How to Address Them

Search for possible exomoons with the FAST telescope

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