Searching for new young stars in the Northern hemisphere

• Verfasst von: Binks, Alex S. [VerfasserIn]
• Verfasst von: Jeffries, Robin D. [VerfasserIn]
• Verfasst von: Ward, Jacob L. [VerfasserIn]
• Titel: Searching for new young stars in the Northern hemisphere
• Titelzusatz: the Pisces Moving Group
• Verf.angabe: A.S. Binks, R.D. Jeffries and J.L. Ward
• Jahr: 2018
• Jahr des Originals: 2017
• Umfang: 21 S.
• Fussnoten: Advance access publication 2017 September 9 ; Gesehen am 13.01.2021
• Titel Quelle: Enthalten in: Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society
• Ort Quelle: Oxford : Oxford Univ. Press, 1827
• Jahr Quelle: 2018
• Band/Heft Quelle: 473(2018), 2, Seite 2465-2485
• ISSN Quelle: 1365-2966
• DOI: doi:10.1093/mnras/stx2252
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1571322124

Abstract

Using the kinematically unbiased technique described in Binks, Jeffries & Maxted (2015), we present optical spectra for a further 122 rapidly rotating (rotation periods <6  d), X-ray active FGK stars, selected from the SuperWASP survey. We identify 17 new examples of young, probably single stars with ages of <200 Myr and provide additional evidence for a new Northern hemisphere kinematic association: the Pisces moving group (MG). The group consists of 14 lithium-rich G- and K-type stars that have a dispersion of only ∼3 km s−1 in each Galactic space velocity coordinate. The group members are approximately coeval in the colour-magnitude diagram, with an age of 30-50 Myr, and have similar, though not identical, kinematics to the Octans-Near MG.