WIYN Open Cluster Study. XC. Radial-velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 2506
arXiv:2410.18189 · doi:10.3847/1538-3881/ad6b1a
Abstract
NGC 2506 is a rich, intermediate-age (2.0 Gyr), metal-poor ([Fe/H] -0.2) open cluster. This work presents the results of 12,157 spectroscopic radial-velocity measurements of 2,442 stars in the NGC 2506 field over 41 years, made as part of the WIYN Open Cluster Study. Radial-velocity measurements are complete for the population of proper-motion member stars brighter than a Gaia G magnitude of 15.5, in which 320 proper-motion and radial-velocity cluster members were identified. Within the observation limit of G 16.5, 469 proper-motion and radial-velocity members were identified. This work reports on the characteristics of NGC 2506, including projected spatial distribution, radial-velocity dispersion, and virial mass. This work also presents orbital solutions for 49 binary members with periods between 1 and 7,580 days. NGC 2506 has an incompleteness-corrected binary frequency for binaries with periods less than days of %. This work also discusses in detail the 14 blue stragglers stars of NGC 2506$\unicode{x2014}$finding at least 64 21% to be in binaries, 5 yellow straggler stars, and several other stars of note.
arXiv comment41 pages, 13 figures, open access publication and machine-readable tables available at https://doi.org/10.3847/1538-3881/ad6b1a
References in corpus (63)
- SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
- Array Programming with NumPy
- Astropy: A Community Python Package for Astronomy
- Gaia Data Release 2. Summary of the contents and survey properties
- The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
- The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
- Modules for Experiments in Stellar Astrophysics (MESA)
- Gaia Data Release 3: Summary of the content and survey properties
- Modules for Experiments in Stellar Astrophysics (MESA): Giant Planets, Oscillations, Rotation, and Massive Stars
- Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
- MESA Isochrones and Stellar Tracks (MIST). I: Solar-Scaled Models
- MESA Isochrones and Stellar Tracks (MIST) 0: Methods for the construction of stellar isochrones
- The Initial Mass Function of Stars: Evidence for Uniformity in Variable Systems
- Cosmic-Ray Rejection by Laplacian Edge Detection
- The VizieR database of Astronomical Catalogues
- galpy: A Python Library for Galactic Dynamics
- A Gaia DR2 view of the Open Cluster population in the Milky Way
- Clusters and mirages: cataloguing stellar aggregates in the Milky Way
- On the triple origin of blue stragglers
- On the metallicity of open clusters. III. Homogenised sample
- Asteroseismology of the open clusters NGC 6791, NGC 6811, and NGC 6819 from nineteen months of Kepler photometry
- 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
- Improving the open cluster census. I. Comparison of clustering algorithms applied to Gaia DR2 data
- A family of lowered isothermal models
- NGC 6819: testing the asteroseismic mass scale, mass loss, and evidence for products of non-standard evolution
- WIYN Open Cluster Study. XLVIII. The Hard-Binary Population of NGC 188
- WIYN Open Cluster Study. XXIV. Stellar Radial-Velocity Measurements in NGC 6819
- New insights on Ba over-abundance in open clusters. Evidence for the intermediate neutron-capture process at play?
- Comprehensive abundance analysis of red giants in the open clusters NGC 752, NGC 1817, NGC 2360 and NGC 2506
- WIYN Open Cluster Study. LX. Spectroscopic Binary Orbits in NGC 6819
- A new, Gaia based, catalogue of blue straggler stars in open clusters
- Cluster Difference Imaging Photometric Survey. I. Light Curves of Stars in Open Clusters from TESS Sectors 6 & 7
- Mergers of close primordial binaries
- ML-MOC: Machine Learning (kNN and GMM) based Membership Determination for Open Clusters
- WIYN Open Cluster Study. XXXVIII. Stellar Radial Velocities in the Young Open Cluster M35 (NGC 2168)
- Self-lensing Discovery of a White Dwarf in an Unusually Wide Orbit Around a Sun-like Star
- The Distribution of Collisionally Induced Blue Stragglers in the Colour-Magnitude Diagram
- WIYN Open Cluster Study. XXXVI. Spectroscopic Binary Orbits in NGC 188
- Pre-FLAMES Survey: Observations of Selected Stellar Fields
- Stellar Radial Velocities in the Old Open Cluster M67 (NGC 2682). II. The Spectroscopic Binary Population
- Roche-lobe filling factor of mass-transferring red giants - the PIONIER view
- Astrometric and photometric study of NGC 6067, NGC 2506 and IC 4651 open clusters based on wide-field ground and Gaia DR2 data
- C, N, O abundances and carbon isotope ratios in evolved stars of the open clusters Collinder 261 and NGC 6253
- Blue Straggler Populations of Seven Open Clusters with Gaia DR2
- WIYN Open Cluster Study. LIX. Radial-Velocity Membership of the Evolved Population of the Old Open Cluster NGC 6791
- Old open clusters: UBGVRI photometry of NGC 2506
- The K2 M67 Study: An Evolved Blue Straggler in M67 from K2 Mission Asteroseismology
- WIYN Open Cluster Study. LXXVII. Radial-Velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 7789
- WIYN Open Cluster Study, LXXVI. Li Evolution Among Stars of Low/Intermediate Mass: The Metal-Deficient Open Cluster, NGC 2506
- Observations of Spin-Down in Post-Mast-Transfer Stars and the Possibility for Blue Straggler Gyrochronology
- Oscillating Blue Stragglers, gamma Doradus stars and eclipsing binaries in the open cluster NGC2506
- Asteroseismology of hybrid Scuti-- Doradus pulsating stars
- UOCS-VIII. UV Study of the open cluster NGC 2506 using ASTROSAT
- A Triple Origin for Twin Blue Stragglers in Close Binaries
- Rotational and Radial Velocities of 1.3-2.2 M_Sun Red Giants in Open Clusters
- WIYN Open Cluster Study. LXXII. A uvbyCa Hbeta CCD Analysis of the Metal-Deficient Open Cluster, NGC 2506
- Star Cluster Ages in the Gaia Era
- Deep and Wide Photometry of Two Open Clusters NGC 1245 and NGC 2506: Dynamical Evolution and Halo
- Extremely precise age and metallicity of the open cluster NGC 2506 using detached eclipsing binaries
- Dynamically Forming Extremely Low-Mass White Dwarf Binaries in Wide Orbits
- WIYN Open Cluster Study. LXXI. Spectroscopic Membership and Orbits of NGC 6791 Sub-Subgiants
- An Eclipsing Binary Comprising Two Active Red Stragglers of Identical Mass and Synchronized Rotation: A Post-Mass-Transfer System or Just Born That Way?