WIYN Open Cluster Study. LXXVII. Radial-Velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 7789

Abstract

We introduce the stellar sample of the WIYN Open Cluster Study radial-velocity survey for the rich open cluster NGC 7789 (1.6 Gyr, [Fe/H] = +0.02). This sample lies within an 18${}^{\prime }$ circular radius from the cluster center (10 pc in projection, or about 2 core radii), and includes giants, red-clump stars, blue stragglers, red stragglers, sub-subgiants, and main-sequence stars down to one mag below the turnoff. Our survey began in 2005 and comprises more than 9,000 radial-velocity measurements from the Hydra Multi-Object Spectrograph on the WIYN 3.5m telescope. We identify 564 likely cluster members and present the orbital solutions for 83 cluster binary stars with periods between 1.45d and 4200d. From the main-sequence binary solutions we fit a circularization period of 8.22${}_{-1.35}^{+3.51}$d. We calculate an incompleteness-corrected main-sequence binary frequency of 31% $\pm$ 3% for binaries with periods less than 10${}^4$ days, similar to other WOCS open clusters of all ages. We detect a blue straggler binary frequency of 31% $\pm$ 15%, consistent with the similarly aged cluster NGC 6819.

arXiv comment47 pages, 16 figures. Submitted to AJ

References in corpus (42)

• Astropy: A Community Python Package for Astronomy
• Gaia Data Release 2. Summary of the contents and survey properties
• The Gaia mission
• Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
• Evolution of binary stars and the effect of tides on binary populations
• MESA Isochrones and Stellar Tracks (MIST) 0: Methods for the construction of stellar isochrones
• A Survey of Stellar Families: Multiplicity of Solar-Type Stars
• Cosmic-Ray Rejection by Laplacian Edge Detection
• A 3D Dust Map Based on Gaia, Pan-STARRS 1 and 2MASS
• A Gaia DR2 view of the Open Cluster population in the Milky Way
• A Robust Measure of Tidal Circularization in Coeval Binary Populations: The solar-type spectroscopic Binary Population in The Open Cluster M35
• A spin-down clock for cool stars from observations of a 2.5-billion-year-old cluster
• The Dynamical Properties of Stellar Systems in the Galactic Disc
• Chemical abundance analysis of the Open Clusters Cr110, NGC2099 (M37), NGC2420, NGC7789 and M67 (NGC2682)
• A Chemical Abundance Study of 10 Open Clusters Based on WIYN-Hydra Spectroscopy
• WIYN Open Cluster Study XXXII: Stellar Radial Velocities in the Old Open Cluster NGC 188
• Stellar Radial Velocities in the Old Open Cluster M67 (NGC 2682) I. Memberships, Binaries, and Kinematics
• A mass transfer origin for blue stragglers in NGC 188 as revealed by half-solar-mass companions
• Direct N-Body Modeling of the Old Open Cluster NGC 188: A Detailed Comparison of Theoretical and Observed Binary Star and Blue Straggler Populations
• WIYN Open Cluster Study. XLVIII. The Hard-Binary Population of NGC 188
• Implications for the Formation of Blue Straggler Stars from HST Ultraviolet Observations of NGC 188
• Age and distance for the old open cluster NGC188 from the eclipsing binary member V12
• WIYN Open Cluster Study. LX. Spectroscopic Binary Orbits in NGC 6819
• WIYN Open Cluster Study. XVII. Astrometry and Membership to V=21 in NGC 188
• Blue Lurkers: Hidden Blue Stragglers on the M67 Main Sequence Identified from their Kepler/K2 Rotation Periods
• On the Origin of Sub-subgiant Stars. I. Demographics
• WIYN Open Cluster Study. XXXVIII. Stellar Radial Velocities in the Young Open Cluster M35 (NGC 2168)
• The Open Cluster NGC 7789: II. CCD VI Photometry
• The OCCASO survey: Presentation and radial velocities of twelve Milky Way Open Clusters
• Li Evolution and the Open Cluster NGC 6819: A Correlation Between Li Depletion and Spindown in Dwarfs More Massive Than the F-Dwarf Li-Dip
• On the Origin of Sub-Subgiant Stars II: Binary Mass Transfer, Envelope Stripping, and Magnetic Activity
• WIYN Open Cluster Study. LIX. Radial-Velocity Membership of the Evolved Population of the Old Open Cluster NGC 6791
• WIYN Open Cluster Study : Wide-Field CCD Photometry of the Old Open Cluster NGC 6819
• Constraining Mass Transfer Histories of Blue Straggler Stars with COS Spectroscopy of White Dwarf Companions
• On the Origin of Sub-subgiant Stars. III. Formation Frequencies
• BATC 13-band Photometry of Open Cluster NGC 7789
• WIYN Open Cluster Study LXII: Comparison of Isochrone Systems using Deep Multi-Band Photometry of M35
• NGC 7789: An Open Cluster Case Study
• Barium Surface Abundances of Blue Stragglers in the Open Cluster NGC 6819
• The Open Cluster NGC 7789: I. Radial Velocities for Giant Stars
• The K2 M67 Study: A Curiously Young Star in an Eclipsing Binary in an Old Open Cluster
• WIYN Open Cluster Study. LXXI. Spectroscopic Membership and Orbits of NGC 6791 Sub-Subgiants

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• Blue Straggler Stars in Open Clusters using Gaia: Dependence on Cluster Parameters and Possible Formation Pathways
• Stellar Radial Velocities in the Old Open Cluster M67 (NGC 2682). II. The Spectroscopic Binary Population
• A Census of Blue Stragglers in Gaia DR2 Open Clusters as a Test of Population Synthesis and Mass Transfer Physics
• Tidal dissipation due to inertial waves can explain the circularization periods of solar-type binaries
• Long-term Spectroscopic Survey of the Pleiades Cluster: The Binary Population
• UOCS VII. Blue Straggler Populations of Open Cluster NGC 7789 with UVIT/AstroSat
• Features of Gaia DR3 Spectroscopic Binaries I. Tidal circularization of Main-Sequence Stars
• Determination of dynamical ages of open clusters through the A${}^{+}$ parameter -- I
• The circularization timescales of late-type binary stars
• A Tale of Two Circularization Periods
• Detailed equilibrium and dynamical tides: impact on circularization and synchronization in open clusters
• OCCASO IV. Radial Velocities and Open Cluster Kinematics
• Tidal dissipation due to the elliptical instability and turbulent viscosity in convection zones in rotating giant planets and stars
• Discovery of double BSS sequences in the old Galactic open cluster Berkeley 17
• WIYN Open Cluster Study. XC. Radial-velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 2506
• Searching for orbital decay in a heartbeat star system KIC 3766353
• Orbital Parameters and Binary Properties of 37 FGK stars in the Cores of Open Clusters NGC 2516 and NGC 2422