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RedDots: panetary masses in the GJ 1061 system from planet-planet interaction

GJ 1061 is a very nearby M star hosting three low-mass temperate planets detected from radial velocity variations. The close to 4:2:1 period commensurability of the planets, the available long-term monitoring of the system, and new very-high-precision radial velocity measurements from ESPRESSO enabl...

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Hauptverfasser: Dreizler, Stefan (VerfasserIn) , Jeffers, S. V. (VerfasserIn) , Liebing, F. (VerfasserIn) , Gorrini, P. (VerfasserIn) , Haswell, C. A. (VerfasserIn) , Gaidos, E. (VerfasserIn) , Barnes, J. R. (VerfasserIn) , Sordo, F. Del (VerfasserIn) , Jones, H. R. A. (VerfasserIn) , Rodríguez, E. (VerfasserIn) , Tsapras, Yiannis (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: June 2025
In: Astronomy and astrophysics
Year: 2025, Jahrgang: 698, Pages: 1-16
ISSN:1432-0746
DOI:10.1051/0004-6361/202452490
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1051/0004-6361/202452490
Verlag, kostenfrei, Volltext: https://www.aanda.org/articles/aa/abs/2025/06/aa52490-24/aa52490-24.html
Volltext
Verfasserangaben:S. Dreizler, S.V. Jeffers, F. Liebing, P. Gorrini, C.A. Haswell, E. Gaidos, J.R. Barnes, F. Del Sordo, H.R.A. Jones, E. Rodríguez, and Y. Tsapras
Beschreibung
Zusammenfassung:GJ 1061 is a very nearby M star hosting three low-mass temperate planets detected from radial velocity variations. The close to 4:2:1 period commensurability of the planets, the available long-term monitoring of the system, and new very-high-precision radial velocity measurements from ESPRESSO enable the determination of masses from the planet-planet interaction. Using nested sampling we derived parameter distributions for a co-planar configuration. The three planets (Mb=1.07 ± 0.11 M⊕, Pb=3.2073 ± 0.0003 d; Mc=1.76 ± 0.13 M⊕, Pc = 6.6821 ± 0.0008 d; and Md=1.55 ± 0.17 M⊕, Pd=13.066 ± 0.002 d) are potentially all rocky with equilibrium temperatures between 360 and 240 K. This makes the GJ 1061 system one of the prime targets for future ground- or space-based instruments suitable for a direct detection of the planetary atmospheres.
Beschreibung:Online verfügbar: 6. Juni 2025
Gesehen am 12.01.2026
Beschreibung:Online Resource
ISSN:1432-0746
DOI:10.1051/0004-6361/202452490

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