The peculiar chemical pattern of the WASP-160 binary system: signatures of planetary formation and evolution?

0551248 - FZÚ 2022 RIV US eng J - Journal Article
Jofré, E. - Petrucci, R. - Chew, Y. - Ramirez, I. - Saffe, C. - Martioli, E. - Buccino, A. - Mašek, Martin - Garcia, L. - Canul, E. - Gomez, M.
The peculiar chemical pattern of the WASP-160 binary system: signatures of planetary formation and evolution?
Astronomical Journal. Roč. 162, č. 6 (2021), č. článku 291. ISSN 0004-6256. E-ISSN 1538-3881
R&D Projects: GA MŠMT(CZ) LM2018102; GA MŠMT LTT18004; GA MŠMT EF16_013/0001402
Grant - others:OP VVV - AUGER-CZ(XE) CZ.02.1.01/0.0/0.0/16_013/0001402
Research Infrastructure: CTA-CZ II - 90105
Institutional support: RVO:68378271
Keywords : planetary system formation * stellar abundances * binary stars * planet hosting stars * spectroscopy
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 5.491, year: 2021
Method of publishing: Open access

Wide binary stars with similar components hosting planets provide a favorable opportunity for exploring the star-planet chemical connection. We perform a detailed characterization of the solar-type stars in the WASP-160 binary system. No planet has been reported yet around WASP-160A, while WASP-160B is known to host a transiting Saturn-mass planet, WASP-160B b. For this planet, we also derive updated properties from both literature and new observations. Furthermore, using TESS photometry, we constrain the presence of transiting planets around WASP-160A and additional ones around WASP-160B. The stellar characterization includes, for the first time, the computation of high-precision differential atmospheric and chemical abundances of 25 elements based on high-quality Gemini-GRACES spectra. Our analysis reveals evidence of a correlation between the differential abundances and the condensation temperatures of the elements.
Permanent Link: http://hdl.handle.net/11104/0326691