Radio Signatures of Star-Planet Interactions, Exoplanets, and Space Weather

Fuente: arXiv

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Autori principali:	Callingham, J. R., Pope, B. J. S., Kavanagh, R. D., Bellotti, S., Daley-Yates, S., Damasso, M., Grießmeier, J. -M., Güdel, M., Günther, M., Kao, M. M., Klein, B., Mahadevan, S., Morin, J., Nichols, J. D., Osten, R. A., Pérez-Torres, M., Pineda, J. S., Rigney, J., Saur, J., Stefánsson, G., Turner, J. D., Vedantham, H., Vidotto, A. A., Villadsen, J., Zarka, P.
Natura:	Preprint
Pubblicazione:	2024
Soggetti:	Earth and Planetary Astrophysics High Energy Astrophysical Phenomena Solar and Stellar Astrophysics
Accesso online:	Acceder al recurso
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_version_	1866912042187751424
author	Callingham, J. R. Pope, B. J. S. Kavanagh, R. D. Bellotti, S. Daley-Yates, S. Damasso, M. Grießmeier, J. -M. Güdel, M. Günther, M. Kao, M. M. Klein, B. Mahadevan, S. Morin, J. Nichols, J. D. Osten, R. A. Pérez-Torres, M. Pineda, J. S. Rigney, J. Saur, J. Stefánsson, G. Turner, J. D. Vedantham, H. Vidotto, A. A. Villadsen, J. Zarka, P.
author_facet	Callingham, J. R. Pope, B. J. S. Kavanagh, R. D. Bellotti, S. Daley-Yates, S. Damasso, M. Grießmeier, J. -M. Güdel, M. Günther, M. Kao, M. M. Klein, B. Mahadevan, S. Morin, J. Nichols, J. D. Osten, R. A. Pérez-Torres, M. Pineda, J. S. Rigney, J. Saur, J. Stefánsson, G. Turner, J. D. Vedantham, H. Vidotto, A. A. Villadsen, J. Zarka, P.
contents	Radio detections of stellar systems provide a window onto stellar magnetic activity and the space weather conditions of extrasolar planets, information that is difficult to attain at other wavelengths. There have been recent advances observing auroral emissions from radio-bright low-mass stars and exoplanets largely due to the maturation of low-frequency radio instruments and the plethora of wide-field radio surveys. To guide us in placing these recent results in context, we introduce the foremost local analogues for the field: Solar bursts and the aurorae found on Jupiter. We detail how radio bursts associated with stellar flares are foundational to the study of stellar coronae, and time-resolved radio dynamic spectra offers one of the best prospects of detecting and characterising coronal mass ejections from other stars. We highlight the prospects of directly detecting coherent radio emission from exoplanetary magnetospheres, and early tentative results. We bridge this discussion to the field of brown dwarf radio emission, in which their larger and stronger magnetospheres are amenable to detailed study with current instruments. Bright, coherent radio emission is also predicted from magnetic interactions between stars and close-in planets. We discuss the underlying physics of these interactions and implications of recent provisional detections for exoplanet characterisation. We conclude with an overview of outstanding questions in theory of stellar, star-planet interaction, and exoplanet radio emission, and the prospects of future facilities in answering them.
format	Preprint
id	arxiv_https___arxiv_org_abs_2409_15507
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Radio Signatures of Star-Planet Interactions, Exoplanets, and Space Weather Callingham, J. R. Pope, B. J. S. Kavanagh, R. D. Bellotti, S. Daley-Yates, S. Damasso, M. Grießmeier, J. -M. Güdel, M. Günther, M. Kao, M. M. Klein, B. Mahadevan, S. Morin, J. Nichols, J. D. Osten, R. A. Pérez-Torres, M. Pineda, J. S. Rigney, J. Saur, J. Stefánsson, G. Turner, J. D. Vedantham, H. Vidotto, A. A. Villadsen, J. Zarka, P. Earth and Planetary Astrophysics High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Radio detections of stellar systems provide a window onto stellar magnetic activity and the space weather conditions of extrasolar planets, information that is difficult to attain at other wavelengths. There have been recent advances observing auroral emissions from radio-bright low-mass stars and exoplanets largely due to the maturation of low-frequency radio instruments and the plethora of wide-field radio surveys. To guide us in placing these recent results in context, we introduce the foremost local analogues for the field: Solar bursts and the aurorae found on Jupiter. We detail how radio bursts associated with stellar flares are foundational to the study of stellar coronae, and time-resolved radio dynamic spectra offers one of the best prospects of detecting and characterising coronal mass ejections from other stars. We highlight the prospects of directly detecting coherent radio emission from exoplanetary magnetospheres, and early tentative results. We bridge this discussion to the field of brown dwarf radio emission, in which their larger and stronger magnetospheres are amenable to detailed study with current instruments. Bright, coherent radio emission is also predicted from magnetic interactions between stars and close-in planets. We discuss the underlying physics of these interactions and implications of recent provisional detections for exoplanet characterisation. We conclude with an overview of outstanding questions in theory of stellar, star-planet interaction, and exoplanet radio emission, and the prospects of future facilities in answering them.
title	Radio Signatures of Star-Planet Interactions, Exoplanets, and Space Weather
topic	Earth and Planetary Astrophysics High Energy Astrophysical Phenomena Solar and Stellar Astrophysics
url	https://arxiv.org/abs/2409.15507