Supermassive hot Jupiters provide more favourable conditions for the generation of radio emission via the cyclotron maser instability - a case study based on Tau Bootis b

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F18%3A00506397" target="_blank" >RIV/68378289:_____/18:00506397 - isvavai.cz</a>
Result on the web
<a href="http://elib.sfu-kras.ru/bitstream/2311/111308/1/weber_et_al_tau_bootis_radio_-_revised_-_june2018.pdf" target="_blank" >http://elib.sfu-kras.ru/bitstream/2311/111308/1/weber_et_al_tau_bootis_radio_-_revised_-_june2018.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/sty2079" target="_blank" >10.1093/mnras/sty2079</a>

Result language
angličtina
Original language name
Supermassive hot Jupiters provide more favourable conditions for the generation of radio emission via the cyclotron maser instability - a case study based on Tau Bootis b
Original language description
We investigate under which conditions supermassive hot Jupiters can sustain source regions for radio emission, and whether this emission could propagate to an observer outside the system. We study Tau Bootis b-like planets (a supermassive hot Jupiter with 5.84 Jupiter masses and 1.06 Jupiter radii), but located at different orbital distances (between its actual orbit of 0.046 and 0.2 au). Due to the strong gravity of such planets and efficient radiative cooling, the upper atmosphere is (almost) hydrostatic and the exobase remains very close to the planet, which makes it a good candidate for radio observations. We expect similar conditions as for Jupiter, i.e. a region between the exobase and the magnetopause that is filled with a depleted plasma density compared with cases where the whole magnetosphere cavity is filled with hydrodynamically outward flowing ionospheric plasma. Thus, unlike classical hot Jupiters like the previously studied planets HD 209458b and HD 189733b, supermassive hot Jupiters should be in general better targets for radio observations.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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