Exoplanet transits with next-generation radio telescopes

@article{Pope2019ExoplanetTW,
  title={Exoplanet transits with next-generation radio telescopes},
  author={Benjamin J. S. Pope and Paul Withers and Joseph R. Callingham and Marissa F. Vogt},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2019},
  volume={484},
  pages={648-658}
}
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 emission from the host star. As radio emission from solar-like stars is concentrated in active regions, a planet occulting a starspot can cause a disproportionately deep transit which should be detectable with major radio arrays currently under development, such… Expand

Figures from this paper

Exoplanet Transits with Next-Generation Radio Telescopes 3
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 theExpand
MOVES – II. Tuning in to the radio environment of HD189733b
We present stellar wind modelling of the hot Jupiter host HD189733, and predict radio emission from the stellar wind and the planet, the latter arising from the interaction of the stellar wind withExpand
No Massive Companion to the Coherent Radio-emitting M Dwarf GJ 1151
The recent detection of circularly polarized, long-duration (>8 hr) low-frequency (~150 MHz) radio emission from the M4.5 dwarf GJ 1151 has been interpreted as arising from a star-planet interactionExpand
Erratum: The solar wind in time II: 3D stellar wind structure and radio emission
This is an erratum to the paper ‘The solar wind in time - II: 3D stellar wind structure and radio emission’, which was published in MNRAS, 483(1), 873, 2019 (O Fionnagain et al. 2019).
Planetary Transits at Radio Wavelengths: Secondary Eclipses of Hot Jupiter Extended Atmospheres
When a planet transits in front of its host star, a fraction of its light is blocked, decreasing the observed flux from the star. The same is expected to occur when observing the stellar radio flux.Expand
Observational Features of Exoplanetary Synchrotron Radio Bursts
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 exoplanetaryExpand
Low-frequency monitoring of flare star binary CR Draconis: long-term electron-cyclotron maser emission
Recently detected coherent low-frequency radio emission from M dwarf systems shares phenomenological similarities with emission produced by magnetospheric processes from the gas giant planets of ourExpand

References

SHOWING 1-10 OF 129 REFERENCES
The detectability of radio emission from exoplanets
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 canExpand
Exoplanet-induced Radio Emission from M Dwarfs
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 emissionExpand
Exoplanet Atmosphere Measurements from Direct Imaging
In the last decade, about a dozen giant exoplanets have been directly imaged in the IR as companions to young stars. With photometry and spectroscopy of these planets in hand from new extremeExpand
EXOPLANET MODULATION OF STELLAR CORONAL RADIO EMISSION.
TLDR
This work indicates that radio signature of exoplanets might not be limited to low-frequency radio range, and finds that the intensity modulations are sensitive to the planetary magnetic field polarity for short-orbit planets, and to the stellar magnetic field strength for all cases. Expand
Transiting Exoplanet Survey Satellite
Abstract. The Transiting Exoplanet Survey Satellite (TESS) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics ExplorerExpand
Search for radio emission of extrasolar planets
All magnetized planets in the solar system emit intense cyclotron maser radiation. Like Jupiter, extrasolar giant planets are probably magnetized. If, in addition, there is a source of energeticExpand
PLANETARY TRANSITS WITH THE ATACAMA LARGE MILLIMETER/SUBMILLIMETER ARRAY RADIO INTERFEROMETER
Planetary transits are commonly observed at visible wavelengths. Here we investigate the shape of a planetary transit observed at radio wavelengths. Solar maps at 17 GHz are used as a proxy for theExpand
Hint of 150 MHz radio emission from the Neptune-mass extrasolar transiting planet HAT-P-11b
Since the radio-frequency emission from planets is expected to be strongly influenced by their interaction with the magnetic field and corona of the host star, the physics of this process can beExpand
Transit spectroscopy with James Webb Space Telescope: systematics, starspots and stitching
The James Webb Space Telescope (JWST) is predicted to make great advances in the field of exoplanet atmospheres. Its 25 m 2 mirror means that it can reach unprecedented levels of precision inExpand
A Revised Exoplanet Yield from the Transiting Exoplanet Survey Satellite (TESS)
The Transiting Exoplanet Survey Satellite (TESS) has a goal of detecting small planets orbiting stars bright enough for mass determination via ground-based radial velocity observations. Here weExpand
...
1
2
3
4
5
...