Auroras on Planets around Pulsars
The first extrasolar planets were discovered serendipitously, by finding the slight variation in otherwise highly regular timing of the pulses, caused by the planets orbiting a millisecond pulsar. In analogy with the solar system planets, we predict the existence of aurora on planets around millisec...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/2041-8213/ad0f1f |
| _version_ | 1827584026524778496 |
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| author | Ruchi Mishra Miljenko Čemeljić Jacobo Varela Maurizio Falanga |
| author_facet | Ruchi Mishra Miljenko Čemeljić Jacobo Varela Maurizio Falanga |
| author_sort | Ruchi Mishra |
| collection | DOAJ |
| description | The first extrasolar planets were discovered serendipitously, by finding the slight variation in otherwise highly regular timing of the pulses, caused by the planets orbiting a millisecond pulsar. In analogy with the solar system planets, we predict the existence of aurora on planets around millisecond pulsars. We perform the first magnetohydrodynamic simulations of magnetospheric pulsar–planet interaction and estimate the radio emission from such systems. We find that the radio emission from aurora on pulsar planets could be observable with the current instruments. We provide parameters for such a detection, which would be the first radio detection of an extrasolar planet. In addition to probing the atmosphere of planets in such extreme conditions, of great interest is also the prospect of the first direct probe into the pulsar wind. |
| first_indexed | 2024-03-08T23:21:33Z |
| format | Article |
| id | doaj.art-2a6a9514e838448eb1f6fc02c41648f8 |
| institution | Directory Open Access Journal |
| issn | 2041-8205 |
| language | English |
| last_indexed | 2024-03-08T23:21:33Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj.art-2a6a9514e838448eb1f6fc02c41648f82023-12-14T22:48:10ZengIOP PublishingThe Astrophysical Journal Letters2041-82052023-01-019591L1310.3847/2041-8213/ad0f1fAuroras on Planets around PulsarsRuchi Mishra0https://orcid.org/0000-0002-9475-5193Miljenko Čemeljić1https://orcid.org/0000-0002-3434-3621Jacobo Varela2https://orcid.org/0000-0002-6114-0539Maurizio Falanga3https://orcid.org/0000-0003-3095-6065Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences , Bartycka 18, 00-716 Warsaw, PolandNicolaus Copernicus Astronomical Center of the Polish Academy of Sciences , Bartycka 18, 00-716 Warsaw, Poland; Research Centre for Computational Physics and Data Processing, Institute of Physics, Silesian University in Opava , Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic; Academia Sinica, Institute of Astronomy and Astrophysics , P.O. Box 23-141, Taipei 106, TaiwanUniversidad Carlos III de Madrid , Leganes, E-28911, SpainInternational Space Science Institute , Hallerstrasse 6, 3012 Bern, Switzerland; Physikalisches Institut, University of Bern , Sidlerstrasse 5, 3012 Bern, SwitzerlandThe first extrasolar planets were discovered serendipitously, by finding the slight variation in otherwise highly regular timing of the pulses, caused by the planets orbiting a millisecond pulsar. In analogy with the solar system planets, we predict the existence of aurora on planets around millisecond pulsars. We perform the first magnetohydrodynamic simulations of magnetospheric pulsar–planet interaction and estimate the radio emission from such systems. We find that the radio emission from aurora on pulsar planets could be observable with the current instruments. We provide parameters for such a detection, which would be the first radio detection of an extrasolar planet. In addition to probing the atmosphere of planets in such extreme conditions, of great interest is also the prospect of the first direct probe into the pulsar wind.https://doi.org/10.3847/2041-8213/ad0f1fPulsar planetsMagnetohydrodynamicsAurorae |
| spellingShingle | Ruchi Mishra Miljenko Čemeljić Jacobo Varela Maurizio Falanga Auroras on Planets around Pulsars The Astrophysical Journal Letters Pulsar planets Magnetohydrodynamics Aurorae |
| title | Auroras on Planets around Pulsars |
| title_full | Auroras on Planets around Pulsars |
| title_fullStr | Auroras on Planets around Pulsars |
| title_full_unstemmed | Auroras on Planets around Pulsars |
| title_short | Auroras on Planets around Pulsars |
| title_sort | auroras on planets around pulsars |
| topic | Pulsar planets Magnetohydrodynamics Aurorae |
| url | https://doi.org/10.3847/2041-8213/ad0f1f |
| work_keys_str_mv | AT ruchimishra aurorasonplanetsaroundpulsars AT miljenkocemeljic aurorasonplanetsaroundpulsars AT jacobovarela aurorasonplanetsaroundpulsars AT mauriziofalanga aurorasonplanetsaroundpulsars |