Coherent radio bursts from known M-dwarf planet-host YZ Ceti
Coherent radio bursts from known M-dwarf planet-host YZ Ceti
复制标题
来自已知 M 矮行星宿主鲸鱼座 YZ 的相干射电爆发
DOI:
10.1038/s41550-023-01914-0
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发表时间:
2023
期刊:
影响因子:
14.1
通讯作者:
Villadsen, Jackie
中科院分区:
文献类型:
--
作者:
Pineda, J. Sebastian;Villadsen, Jackie
Observing magnetic star–planet interactions (SPIs) offers promise for determining the magnetic fields of exoplanets. Models of sub-Alfvénic SPIs predict that terrestrial planets in close-in orbits around M dwarfs can induce detectable stellar radio emission, manifesting as bursts of strongly polarized coherent radiation observable at specific planet orbital positions. Here we present 2–4 GHz detections of coherent radio bursts on the slowly rotating M dwarf YZ Ceti, which hosts a compact system of terrestrial planets, the innermost of which orbits with a two-day period. Two coherent bursts occur at similar orbital phases of YZ Ceti b, suggestive of an enhanced probability of bursts near that orbital phase. We model the system’s magnetospheric environment in the context of sub-Alfvénic SPIs and determine that YZ Ceti b can plausibly power the observed flux densities of the radio detections. However, we cannot rule out stellar magnetic activity without a well-characterized rate of non-planet-induced coherent radio bursts on slow rotators. YZ Ceti is therefore a candidate radio SPI system, with unique promise as a target for long-term monitoring.
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影响因子:
6.5
作者:
Reiners;Zechmeister;Caballero;Morales;Jeffers;Schöfer;Tal-Or;Quirrenbach
通讯作者:
Quirrenbach
DOI:
10.3847/1538-4357/aaa59c
发表时间:
2018
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Turnpenney S
通讯作者:
Turnpenney S
影响因子:
14.1
作者:
H. Vedantham;H. Vedantham;J. Callingham;T. Shimwell;T. Shimwell;C. Tasse;B. Pope;M. Bedell;
通讯作者:
H. Vedantham;H. Vedantham;J. Callingham;T. Shimwell;T. Shimwell;C. Tasse;B. Pope;M. Bedell;
DOI:
10.3847/1538-4357/aae078
发表时间:
2018
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Pineda, J. Sebastian;Hallinan, Gregg
通讯作者:
Hallinan, Gregg
影响因子:
6.5
作者:
M. P'erez;Jos'e Francisco G'omez;J. Ortiz;P. Leto;G. Anglada;Jos'e Luis G'omez;E. Rodr'iguez;C. Trigilio;P. Amado;A. Alberdi;G. Anglada;M. Osorio;G. Umana;Z. Berdiñas;M. J. L'opez;N. Morales;C. Rodr'iguez;J. Chibueze
通讯作者:
J. Chibueze