The Solar Neighborhood. XXXIII. Parallax Results from the CTIOPI 0.9m Program: Trigonometric Parallaxes of Nearby Low-Mass Active and Young Systems

Abstract

We present basic observational data and association membership analysis for 45 young and active low-mass stellar systems from the ongoing RECONS photometry and astrometry program at the Cerro Tololo Inter-American Observatory. Most of these systems have saturated X-ray emission (log(Lx/Lbol) > -3.5) based on X-ray fluxes from the ROSAT All-Sky Survey, and many are significantly more luminous than main-sequence stars of comparable color. We present parallaxes and proper motions, Johnson-Kron-Cousins VRI photometry, and multiplicity observations from the CTIOPI program on the CTIO 0.9m telescope. To this we add low-resolution optical spectroscopy and line measurements from the CTIO 1.5m telescope, and interferometric binary measurements from the Hubble Space Telescope Fine Guidance Sensors. We also incorporate data from published sources: JHKs photometry from the 2MASS point source catalog; X-ray data from the ROSAT All-Sky Survey; and radial velocities from literature sources. Within the sample of 45 systems, we identify 21 candidate low-mass pre-main-sequence members of nearby associations, including members of beta Pictoris, TW Hydrae, Argus, AB Doradus, two ambiguous 30 Myr old systems, and one object that may be a member of the Ursa Major moving group. Of the 21 candidate young systems, 14 are newly identified as a result of this work, and six of those are within 25 parsecs of the Sun.

40 pages, 11 tables, 20 figures. Accepted to AJ

References in corpus (14)

• Direct Imaging of Multiple Planets Orbiting the Star HR 8799
• The Dartmouth Stellar Evolution Database
• Constraining the Age-Activity Relation for Cool Stars: The SDSS DR5 Low-Mass Star Spectroscopic Sample
• The Solar Neighborhood XVII: Parallax Results from the CTIOPI 0.9m Program -- Twenty New Members of the RECONS 10 Parsec Sample
• Characterizing Young Brown Dwarfs using Low Resolution Near-IR Spectra
• M dwarfs: effective temperatures, radii and metallicities
• On the age heterogeneity of the Pleiades, Hyades and Sirius moving groups
• A New Method to Identify Nearby, Young, Low-mass Stars
• Cool Subdwarf Investigations (CSI) I: New Thoughts for the Spectral Types of K and M Subdwarfs
• Nearby young stars selected by proper motion. I. Four new members of the Beta Pictoris moving group from the Tycho-2 catalog
• Discovery of 9 New Companions to Nearby Young M Stars with the Altair AO System
• An accurate distance to 2M1207Ab
• The Trigonometric Parallax of the Brown Dwarf Planetary System 2MASSW J1207334-393254
• The First Direct Distance and Luminosity Determination for a Self-Luminous Giant Exoplanet: The Trigonometric Parallax to 2MASS1207334-393254Ab

Cited by in corpus (106)

• BANYAN. XI. The BANYAN $\Sigma$ multivariate Bayesian algorithm to identify members of young associations within 150 pc
• A self-consistent, absolute isochronal age scale for young moving groups in the solar neighbourhood
• Imaging Extrasolar Giant Planets
• The Hawaii Infrared Parallax Program. II. Young Ultracool Field Dwarfs
• BANYAN. VII. A New Population of Young Substellar Candidate Members of Nearby Moving Groups from the BASS Survey
• The Solar Neighborhood XXXVII: The Mass-Luminosity Relation for Main Sequence M Dwarfs
• Planets Around Low-Mass Stars (PALMS). IV. The Outer Architecture of M Dwarf Planetary Systems
• The Solar Neighborhood XLV. The Stellar Multiplicity Rate of M Dwarfs Within 25 pc
• CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS
• BANYAN. III. Radial velocity, Rotation and X-ray emission of low-mass star candidates in nearby young kinematic groups
• HAZMAT I: The Evolution of Far-UV and Near-UV Emission from Early M Stars
• The Solar Neighborhood XXXV: Distances to 1404 M Dwarf Systems Within 25 pc in the Southern Sky
• BANYAN. IV. Fundamental parameters of low-mass star candidates in nearby young stellar kinematic groups - Isochronal Age determination using Magnetic evolutionary models
• CARMENES input catalogue of M dwarfs: III. Rotation and activity from high-resolution spectroscopic observations
• Photometry and Proper Motions of M, L, and T Dwarfs from the Pan-STARRS1 3$\pi$ Survey
• Empirical Isochrones for Low Mass Stars in Nearby Young Associations
• The Solar Neighborhood XLIV: RECONS Discoveries within 10 Parsecs
• BANYAN. V. A Systematic All-Sky Survey for New Very Late-Type Low-Mass Stars and Brown Dwarfs in Nearby Young Moving Groups
• The CARMENES search for exoplanets around M dwarfs. Activity indicators at visible and near-infrared wavelengths
• CARMENES input catalogue of M dwarfs II. High-resolution imaging with FastCam
• All-sky Co-moving Recovery Of Nearby Young Members. (ACRONYM) II: The Beta Pictoris Moving Group
• A Survey for New Members of the Taurus Star-Forming Region with the Sloan Digital Sky Survey
• LACEwING: A New Moving Group Analysis Code
• BANYAN. IX. The Initial Mass Function and Planetary-Mass Object Space Density of the TW Hya Association
• A Near-Infrared Spectroscopic Survey of 886 Nearby M Dwarfs
• The AstraLux Multiplicity Survey: Extension to Late M-dwarfs
• A Very Bright, Very Hot, and Very Long Flaring Event from the M Dwarf Binary System DG CVn
• The Occurrence Rate of Terrestrial Planets Orbiting Nearby Mid-to-late M Dwarfs from TESS Sectors 1-42
• On the Mass Function, Multiplicity, and Origins of Wide-Orbit Giant Planets
• HAZMAT III: The UV Evolution of Mid- to Late-M Stars with GALEX
• The Ultracool SpeXtroscopic Survey. I. Volume-Limited Spectroscopic Sample and Luminosity Function of M7$-$L5 Ultracool Dwarfs
• Calibration of the Halpha Age-Activity relation for M dwarfs
• ACRONYM III: Radial Velocities for 336 Candidate Young Low-Mass Stars in the Solar Neighborhood, Including 78 Newly Confirmed Young Moving Group Members
• SPOTS: The Search for Planets Orbiting Two Stars: II. First constraints on the frequency of sub-stellar companions on wide circumbinary orbits
• Large X-ray Flares on Stars Detected with MAXI/GSC: A Universal Correlation between the Duration of a Flare and its X-ray Luminosity
• MASSIVE: A Bayesian analysis of giant planet populations around low-mass stars
• Search for associations containing young stars (SACY) VII. New stellar and substellar candidate members in the young associations
• Spectroscopic confirmation of M-dwarf candidate members of the Beta Pictoris and AB Doradus Moving Groups
• Reaching the boundary between stellar kinematic groups and very wide binaries. III. Sixteen new stars and eight new wide systems in the beta Pictoris moving group
• A 3D Search for Companions to 12 Nearby M-Dwarfs
• Trigonometric Parallaxes and Proper Motions of 134 Southern Late M, L, and T Dwarfs from the Carnegie Astrometric Planet Search Program
• Search for associations containing young stars (SACY). VI. Is multiplicity universal? Stellar multiplicity in the range 3-1000 au from adaptive-optics observations
• Search for associations containing young stars (SACY) VIII. An updated census of spectroscopic binary systems showing hints of non-universal multiplicity among these associations
• Strong H$\alpha$ emission and signs of accretion in a circumbinary planetary mass companion from MUSE
• WISE J080822.18-644357.3 - a 45 Myr-old accreting M dwarf hosting a primordial disc
• The Second Discovery from the COol Companions ON Ultrawide orbiTS (COCONUTS) Program: A Cold Wide-Orbit Exoplanet around a Young Field M Dwarf at 10.9 pc
• The Volume-Complete Sample of M Dwarfs with Masses 0.1 <= M/M_sol <= 0.3 within 15 Parsecs
• The Elusive Majority of Young Moving Groups. I. Young Binaries and Lithium-Rich Stars in the Solar Neighborhood
• Calibration of the MEarth Photometric System: Optical Magnitudes and Photometric Metallicity Estimates for 1802 Nearby M-dwarfs
• New Parallaxes and a Convergence Analysis for the TW Hya Association
• Young Stars with SALT
• A Census of the TW Hya Association with Gaia
• The IGRINS YSO Survey I. Stellar parameters of pre-main sequence stars in Taurus-Auriga
• The beta Pictoris association: Catalog of photometric rotational periods of low-mass members and candidate members
• The ESO SupJup Survey I: Chemical and isotopic characterisation of the late L-dwarf DENIS J0255-4700 with CRIRES${}^{+}$
• Near-infrared Accretion Signatures from the Circumbinary Planetary Mass Companion Delorme 1 (AB)b
• The beta Pictoris association low-mass members: membership assessment, rotation period distribution, and dependence on multiplicity
• Characterisation of stellar activity of M dwarfs. I. Long-timescale variability in a large sample and detection of new cycles
• Planets Around Low-Mass Stars (PALMS). V. Age-Dating Low-Mass Companions to Members and Interlopers of Young Moving Groups
• The Solar Neighborhood XXXVIII. Results from the CTIO/SMARTS 0.9m: Trigonometric Parallaxes for 151 Nearby M Dwarf Systems
• Addressing Systematics in the Traceback Age of the $\beta$ Pictoris Moving Group
• The Solar Neighborhood XLIX: New Discoveries and Orbits of M Dwarf Multiples with Speckle Interferometry at SOAR
• High Contrast Imaging with Spitzer : Constraining the Frequency of Giant Planets out to 1000 AU separations
• Parallax Results From URAT Epoch Data
• A prompt radio transient associated with a gamma-ray superflare from the young M dwarf binary DG CVn
• Magnetic topologies of young suns: The weak-line T Tauri stars TWA 6 and TWA 8A
• Speckle Interferometry of Red Dwarf Stars
• Resolved near-UV hydrogen emission lines at 40-Myr super-Jovian protoplanet Delorme 1 (AB)b: Indications of magnetospheric accretion
• The Solar Neighborhood. XLVI. Revealing New M Dwarf Binaries and their Orbital Architectures
• A Pre-Gaia Census of Nearby Stellar Groups
• Characterizing the AB Doradus Moving Group Via High Resolution Spectroscopy and Kinematic Traceback
• UCAC4 Nearby Star Survey: A Search for Our Stellar Neighbors
• Spectroscopic Orbits of Eleven Nearby, Mid-to-Late M Dwarf Binaries
• The LEECH Exoplanet Imaging Survey: Orbit and Component Masses of the Intermediate Age, Late-Type Binary NO UMa
• PSYM-WIDE: a survey for large-separation planetary-mass companions to late spectral type members of young moving groups
• The Late-Type Extension to MoVeRS (LaTE-MoVeRS): Proper motion verified low-mass stars and brown dwarfs from SDSS, 2MASS, and WISE
• Bayesian assessment of moving group membership: importance of models and prior knowledge
• WEIRD: Wide-orbit Exoplanet search with InfraRed Direct imaging
• Variability Timescales of H$\alpha$ on Active Mid-to-Late M dwarfs
• Early optical follow-up of the nearby active star DG CVn during its 2014 superflare
• EMISSA -- Exploring Millimeter Indicators of Solar-Stellar Activity I. The Initial mm-cm Main Sequence Star Sample
• A kinematically hot population of young stars in the solar neighbourhood
• A Dusty M5 Binary in the beta Pictoris Moving Group
• The discrepancy between dynamical and theoretical mass in the triplet-system 2MASS J10364483+1521394
• Radial velocity homogeneous analysis of M dwarfs observed with HARPS I. Exoplanet detection and candidates
• Herschel Observations of Disks around Late-type Stars
• Flaring Stars in a Non-targeted mm-wave Survey with SPT-3G
• Understanding Physical Properties of Young M-dwarfs: NIR spectroscopic studies
• Updated orbital monitoring and dynamical masses for nearby M-dwarf binaries
• Fermi/LAT detection of a transient gamma-ray flare in the vicinity of the binary star DG CVn
• Collisions of Terrestrial Worlds: The Occurrence of Extreme Mid-Infrared Excesses around Low-Mass Field Stars
• The Solar Neighborhood. XLIII: Discovery of New Nearby Stars with pm < 0.18 arcsec yr-1 (TINYMO sample)
• COol Companions ON Ultrawide orbiTS (COCONUTS). III. A Very Red L6 Benchmark Brown Dwarf around a Young M5 Dwarf
• A catalog of nearby accelerating star candidates in Gaia DR3
• Search for Close Stellar Encounters with the Solar System from Data on Nearby Dwarfs
• G 68-34: A Double-Lined M-Dwarf Eclipsing Binary in a Hierarchical Triple System
• ExoplaNeT accRetion mOnitoring sPectroscopic surveY (ENTROPY) - II. Time series of Balmer line profiles of Delorme 1(AB)b
• Δμ Binaries among Stars with Large Proper Motions
• The triple system AT Mic AB + AU Mic in the beta Pictoris Association
• Polarized, variable radio emission from the scallop-shell binary system DG CVn
• The Solar Neighborhood L: Spectroscopic Discovery of K Dwarfs Younger Than 1 Gyr and New Binaries within 30 pc
• The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps
• Characterizing Exoplanets for Assessing Their Potential Habitability
• Kinematic identification of young nearby moving groups from a sample of chromospherically active stars in the RAVE catalog
• Estimates of the kinematic age of the $\beta$ Pictoris moving group from up-to-date data
• Magnetic geometry of M dwarfs in the southern PLATO field