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Searching for new young stars in the northern hemisphere: The Pisces Moving Group

Binks, A.S.; Jeffries, Robin; Ward, J.L.

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Authors

A.S. Binks

J.L. Ward



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 days), 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 co-eval in the colour-magnitude diagram, with an age of 30–50 Myr, and have similar, though not identical, kinematics to the Octans-Near MG. stars: low-mass, stars: pre-main-sequence

Journal Article Type Article
Acceptance Date Aug 30, 2017
Online Publication Date Sep 9, 2017
Publication Date Jan 1, 2018
Publicly Available Date Mar 28, 2024
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 473
Issue 2
Pages 2465-2485
DOI https://doi.org/10.1093/mnras/stx2252
Keywords stars, low-mass, pre-main-sequence
Publisher URL http://doi.org/10.1093/mnras/stx2252

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