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

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 $\sim$3 kms${}^{-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.

arXiv comment22 pages, 11 figures, 8 tables

References in corpus (74)

• Validation of the new Hipparcos reduction
• Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
• The USNO-B Catalog
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• A Survey of Stellar Families: Multiplicity of Solar-Type Stars
• New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit
• Accurate masses and radii of normal stars: modern results and applications
• Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
• The WASP Project and the SuperWASP Cameras
• The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)
• Ages for illustrative field stars using gyrochronology: viability, limitations and errors
• The PPMXL catalog of positions and proper motions on the ICRS. Combining USNO-B1.0 and 2MASS
• On the rotational evolution of solar- and late-type stars, its magnetic origins, and the possibility of stellar gyrochronology
• Radial Velocities for 889 Late-type Stars
• Very Low Mass Stars and Brown Dwarfs in Taurus-Auriga
• Chromospheric Activity and Jitter Measurements for 2630 Stars on the California Planet Search
• A self-consistent, absolute isochronal age scale for young moving groups in the solar neighbourhood
• Second ROSAT all-sky survey (2RXS) source catalogue
• The RAdial Velocity Experiment (RAVE): Fourth data release
• Improved angular momentum evolution model for solar-like stars
• Bayesian analysis to identify new star candidates in nearby young stellar kinematic groups
• Search for Associations Containing Young stars (SACY): I. Sample & Searching Method
• Magnetic Inhibition of Convection and the Fundamental Properties of Low-Mass Stars. III. A Consistent 10 Myr Age for the Upper Scorpius OB Association
• The Tucana/Horologium, Columba, AB Doradus, and Argus Associations: New Members and Dusty Debris Disks
• A lithium depletion boundary age of 21 Myr for the Beta Pictoris moving group
• Rotation in the Pleiades with K2: I. Data and First Results
• The Gemini NICI Planet-Finding Campaign: The Frequency of Planets around Young Moving Group Stars
• The Sun in Time: Activity and Environment
• A Stellar Census of the Tucana-Horologium Moving Group
• Lithium and Halpha in stars and brown dwarfs of sigma Orionis
• Identifying the young low-mass stars within 25 pc. II. Distances, kinematics and group membership
• High-Dispersion Optical Spectra of Nearby Stars Younger Than The Sun
• Search for associations containing young stars. III- Ages and Li abundances
• BANYAN. III. Radial velocity, Rotation and X-ray emission of low-mass star candidates in nearby young kinematic groups
• New periodic variable stars coincident with ROSAT sources discovered using SuperWASP
• RACE-OC Project: Rotation and variability in young stellar associations within 100 pc
• Young Nearby Loose Associations
• A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups
• GASPS - a Herschel survey of gas and dust in Protoplanetary Disks: Summary and Initial Statistics
• The Lithium Depletion Boundary in NGC 2547 as a test of pre-main-sequence evolutionary models
• Empirical Isochrones for Low Mass Stars in Nearby Young Associations
• Membership, lithium, and metallicity in the young open clusters IC 2602 and IC 2391: enlarging the sample
• The Moving Group Targets of the SEEDS High-Contrast Imaging Survey of Exoplanets and Disks: Results and Observations from the First Three Years
• LACEwING: A New Moving Group Analysis Code
• A study of X-ray flares - II. RS CVn type Binaries
• Rotation, inflation, and lithium in the Pleiades
• Beta Pictoris and AB Doradus Moving Groups: Likely New Low-Mass Members
• The catalogue of radial velocity standard stars for Gaia I. Pre-launch release
• 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
• The rotation - Lithium depletion correlation in the beta Pictoris association and LDB age determination
• Search for associations containing young stars (SACY). V. Is multiplicity universal? Tight multiple systems
• 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
• Likely Members of the Beta Pictoris and AB Doradus Moving Groups in the North
• A search for new members of the beta Pic, Tuc-Hor and epsilon Cha moving groups in the RAVE database
• Young Stars Near Earth: The Octans-Near Association and Castor Moving Group
• 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
• Spectroscopic confirmation of M-dwarf candidate members of the Beta Pictoris and AB Doradus Moving Groups
• An XMM-Newton observation of the young open cluster NGC 2547: coronal activity at 30 Myr
• High-amplitude, long-term X-ray variability in the solar-type star HD 81809: the beginning of an X-ray activity cycle?
• Pre-main-sequence isochrones -- III. The Cluster Collaboration isochrone server
• The Gaia-ESO Survey: membership and Initial Mass Function of the Gamma Velorum cluster
• The Sizes of the Nearest Young Stars
• A stellar census of the nearby, young 32 Orionis group
• BANYAN. VIII. New Low-Mass Stars and Brown Dwarfs with Candidate Circumstellar Disks
• Rotation and activity in the solar-type stars of NGC 2547
• The first 40 million years of circumstellar disk evolution: the signature of terrestrial planet formation
• A WISE-based search for debris discs amongst M-dwarfs in nearby, young, moving groups
• The Lutz-Kelker bias in trigonometric parallaxes
• Nearby Young, Active, Late-type Dwarfs in Gaia's First Data Release

Cited by in corpus (7)

• New Coronae and Stellar Associations Revealed by a Clustering Analysis of the Solar Neighborhood
• Extended stellar systems in the solar neighborhood. IV. Meingast 1: the most massive stellar stream in the solar neighborhood
• A Census of the 32 Ori Association with Gaia
• A kinematically hot population of young stars in the solar neighbourhood
• Flares of accretion activity of the 20 Myr old UXOR RZ Psc
• A kinematically unbiased, all-sky search for nearby, young, low-mass stars
• Discovery of carbon monoxide emission from five debris disks around young A-type stars