Searching for new young stars in the northern hemisphere: The Pisces Moving Group
arXiv:1708.09541 · doi:10.1093/mnras/stx2252
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 kms 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.
22 pages, 11 figures, 8 tables
References in corpus (26)
- Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
- New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit
- Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
- Second ROSAT all-sky survey (2RXS) source catalogue
- Search for Associations Containing Young stars (SACY): I. Sample & Searching Method
- A Stellar Census of the Tucana-Horologium Moving Group
- High-Dispersion Optical Spectra of Nearby Stars Younger Than The Sun
- New periodic variable stars coincident with ROSAT sources discovered using SuperWASP
- Young Nearby Loose Associations
- A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups
- LACEwING: A New Moving Group Analysis Code
- Rotation, inflation, and lithium in the Pleiades
- An Observational Study of Tidal Synchronization in Solar-Type Binary Stars in the Open Clusters M35 and M34
- The Monitor project: Rotation periods of low-mass stars in M50
- Formation and accretion history of terrestrial planets from runaway growth through to late time: implications for orbital eccentricity
- The Gaia-ESO Survey: Lithium depletion in the Gamma Velorum cluster and inflated radii in low-mass pre-main-sequence stars
- Search for associations containing young stars (SACY). V. Is multiplicity universal? Tight multiple systems
- The rotation - Lithium depletion correlation in the beta Pictoris association and LDB age determination
- A Measurement of Radius Inflation in the Pleiades and its Relation to Rotation and Lithium Depletion
- Nearby young stars selected by proper motion. I. Four new members of the Beta Pictoris moving group from the Tycho-2 catalog
- Radial velocities for the Hipparcos-Gaia Hundred-Thousand-Proper-Motion project
- Large X-ray Flares on Stars Detected with MAXI/GSC: A Universal Correlation between the Duration of a Flare and its X-ray Luminosity
- Pre-main-sequence isochrones -- III. The Cluster Collaboration isochrone server
- BANYAN. VIII. New Low-Mass Stars and Brown Dwarfs with Candidate Circumstellar Disks
- The first 40 million years of circumstellar disk evolution: the signature of terrestrial planet formation
- Nearby Young, Active, Late-type Dwarfs in Gaia's First Data Release