The metallicity-period-mass diagram of low-mass exoplanets

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Sousa, SG (Author) FCUP; Adibekyan, V (Author) Other; N.C. Santos (Author) FCUP; Mortier, A (Author) Other; Barros, SCC (Author) FCUP; Delgado Mena, E (Author) FCUP; Demangeon, O (Author) Other; Israelian, G (Author) Other; Faria, JP (Author) Other; Figueira, P (Author) Other; Rojas Ayala, B (Author) Other; Tsantaki, M (Author) Other; Andreasen, DT (Author) Other; Brandao, I (Author) Other; Ferreira, ACS (Author) Other; Montalto, M (Author) Other; Santerne, A (Author) Other

Journal

Title: Monthly Notices of the Royal Astronomical Society

Vol. 485

Pages: 3981-3990

ISSN: 0035-8711

Publisher: Oxford University Press

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 11 Citations

Other information

Authenticus ID: P-00Q-TZ9

DOI: 10.1093/mnras/stz664

Abstract (EN): The number of exoplanet detections continues to grow following the development of better instruments and missions. Key steps for the understanding of these worlds comes from their characterization and statistical studies. We explore the metallicity-period-mass diagram for known exoplanets by using an updated version of The Stellar parameters for stars with ExoplanETs CATalogue (SWEET-Cat), a unique compilation of precise stellar parameters for planet-host stars provided for the exoplanet community. Here, we focus on the planets with minimum mass below 30 M-circle plus which seems to present a possible correlation in the metallicity-period-mass diagram where the mass of the planet increases with both metallicity and period. Our analysis suggests that the general observed correlation may not be fully explained by observational biases. Additional precise data will be fundamental to confirm or deny this possible correlation.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10