Candidates for detecting exoplanetary radio emissions generated by magnetosphere-ionosphere coupling

Abstract

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 estimating the maximum spectral flux density expected from planets orbiting stars within 25 pc using data listed in the NASA/IPAC/NExScI Star and Exoplanet Database (NStED). In total we identify 91 potential targets, of which 40 already host planets and 51 have stellar X-ray luminosity 100 times the solar value. In general, we find that stronger planetary field strength, combined with faster rotation rate, higher stellar XUV luminosity, and lower stellar wind dynamic pressure results in higher radio power. The top two targets for each category are $\epsilon$ Eri and HIP 85523, and CPD-28 332 and FF And.

Accepted for publication in Monthly Notices of the Royal Astronomical Society Letters

References in corpus (4)

• Kepler-16: A Transiting Circumbinary Planet
• Predicting low-frequency radio fluxes of known extrasolar planets
• Radio emission from exoplanets: the role of the stellar coronal density and magnetic field strength
• Magnetosphere-ionosphere coupling in Jupiter's middle magnetosphere: computations including a self-consistent current sheet magnetic field model

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