Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system
Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system
复制标题
TOI-1338/BEBOP-1 环双星系统中第二颗行星的径向速度发现
DOI:
10.1038/s41550-023-01948-4
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发表时间:
2023
期刊:
影响因子:
14.1
通讯作者:
Cameron, Andrew Collier
中科院分区:
文献类型:
--
作者:
Standing, Matthew R.;Sairam, Lalitha;Martin, David V.;Triaud, Amaury H.;Correia, Alexandre C.;Coleman, Gavin A.;Baycroft, Thomas A.;Kunovac, Vedad;Boisse, Isabelle;Cameron, Andrew Collier
Circumbinary planets, those that orbit around both stars of a central binary star system, challenge our understanding of planet formation. With only 12 binary systems known to host circumbinary planets, identifying more of these planets, along with their physical properties, could help to discern some of the physical processes that govern planet formation. Here we analyse radial-velocity data obtained by the HARPS and ESPRESSO spectrographs and report the detection of BEBOP-1 c, a gas giant planet with a mass of 65.2 ± 11.8 Earth masses (M⊕) orbiting around both stars of an eclipsing binary star system with a period of 215.5 ± 3.3 days. The system TOI-1338, hereafter referred to as BEBOP-1, which also hosts the smaller and inner transiting planet TOI-1338 b, is only the second confirmed multiplanetary circumbinary system. We do not detect TOI-1338 b with radial-velocity data alone, and we can place an upper limit on its mass of 21.8M⊕with 99% confidence. TOI-1338 b is amenable to atmospheric characterization using JWST, so the BEBOP-1 system has the potential to act as a benchmark for circumbinary exo-atmospheric studies.
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DOI:
10.21105/joss.00487
发表时间:
2018
期刊:
J. Open Source Softw.
影响因子:
--
作者:
J. Faria;N. Santos;P. Figueira;B. Brewer
通讯作者:
B. Brewer
影响因子:
4.8
作者:
G. Coleman
通讯作者:
G. Coleman
影响因子:
16.8
作者:
Poonperm, Rawin;Ichihara, Saya;Miura, Hisashi;Tanigawa, Akie;Nagao, Koji;Obuse, Chikashi;Sado, Takashi;Hiratani, Ichiro
通讯作者:
Hiratani, Ichiro
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
J. G. D. Silva;N. Santos;X. Bonfils;X. Delfosse;T. Forveille;S. Udry
通讯作者:
S. Udry
影响因子:
4.8
作者:
G. Coleman;T. Haworth
通讯作者:
T. Haworth