Absolute proper motion of the Galactic open cluster M67

Abstract

We derived the absolute proper motion (PM) of the old, solar-metallicity Galactic open cluster M67 using observations collected with CFHT (1997) and with LBT (2007). About 50 galaxies with relatively sharp nuclei allow us to determine the absolute PM of the cluster. We find (mu_alpha cos(delta),mu_delta)_J2000.0 = (-9.6+/-1.1,-3.7+/-0.8) mas/yr. By adopting a line-of-sight velocity of 33.8+/-0.2 km/s, and assuming a distance of 815+/-50 pc, we explore the influence of the Galactic potential, with and without the bar and/or spiral arms, on the galactic orbit of the cluster.

7 pages, 5 figures, and 3 tables. Published in Astronomy and Astrophysics, Volume 513, id.A51.

References in corpus (25)

• Local stellar kinematics from Hipparcos data
• Trigonometric Parallaxes of Massive Star Forming Regions: VI. Galactic Structure, Fundamental Parameters and Non-Circular Motions
• Astrophysical parameters of Galactic open clusters
• An ACS Survey of Globular Clusters V: Star Catalog for Each Cluster
• COBE's Galactic Bar and Disk
• Gas Dynamics and Large-Scale Morphology of the Milky Way Galaxy
• Cosmic Reionisation by Stellar Sources: Population III Stars
• Ground-Based CCD Astrometry with Wide Field Imagers. I. [Observations just a few years apart allow decontamination of field objects from members in two Globular clusters.]
• Ground-based CCD astrometry with wide field imagers. II. A star catalogue for M67: [email protected] MPG/ESO astrometry, FLAMES@VLT radial velocities
• The properties of the Galactic bar implied by gas kinematics in the inner Milky Way
• Absolute Proper Motions of Open Clusters: I. Observational data
• The Outer Regions of the Galactic Bulge:II Analysis
• Stellar Kinematic Constraints on Galactic Structure Models Revisited: Bar and Spiral Arm Resonances
• Astrometry and photometry with HST-WFC3. I. Geometric distortion corrections of F225W, F275W, F336W bands of the UVIS-channel
• Models for the Gravitational Field of the Galactic Bar. An Application to Stellar Orbits in the Galactic Plane and Orbits of Some Globular Clusters
• The Pattern Speed of the OH/IR Stars in the Milky Way
• The orbits of 48 globular clusters in a Milky-Way-Like Barred Galaxy
• Nonlinear Effects in Models of the Galaxy: 1. Midplane Stellar Orbits in the Presence of 3D Spiral Arms
• The White Dwarf Cooling Age of M67
• A Plausible Galactic Spiral Pattern and its Rotation Speed
• HST Astrometry of M4 and the Galactic Constant V_0/R_0
• Ground-based CCD astrometry with wide field imagers. III. [email protected] proper-motion catalog of the globular cluster omega Centauri
• The end of the white dwarf cooling sequence in M 67
• The absolute motion of the peculiar cluster NGC6791
• Ground-based CCD astrometry with wide field imagers. IV. An improved Geometric Distortion Correction for the Blue prime-focus Camera at the LBT

Cited by in corpus (26)

• The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)
• Hubble Space Telescope Proper Motion (HSTPROMO) Catalogs of Galactic Globular Clusters. I. Sample Selection, Data Reduction and NGC 7078 Results
• Chemical Abundances of Main-Sequence, Turnoff, Subgiant and red giant Stars from APOGEE spectra II: Atomic Diffusion in M67 Stars
• HST absolute Proper Motions of NGC 6681 (M70) and the Sagittarius Dwarf Spheroidal Galaxy
• The Gaia-ESO Survey: double, triple and quadruple-line spectroscopic binary candidates
• The Sun was not born in M 67
• The origin and orbit of the old, metal-rich, open cluster NGC 6791: Insights from kinematics
• The end of the white dwarf cooling sequence in M 67
• Variable stars in one open cluster within the Kepler/K2-Campaign-5 field: M 67 (NGC 2682)
• A Gaia-PS1-SDSS (GPS1) Proper Motion Catalog Covering 3/4 of the Sky
• Open clusters towards the Galactic center: chemistry and dynamics. A VLT spectroscopic study of NGC6192, NGC6404, NGC6583
• The HST large programme on $\omega$ Centauri -- III. Absolute proper motion
• Proper motions in the VVV Survey: Results for more than 15 million stars across NGC 6544
• The rate of stellar encounters along a migrating orbit of the Sun
• Proper motions and structural parameters of the Galactic globular cluster M71
• Ground-based CCD astrometry with wide field imagers. IV. An improved Geometric Distortion Correction for the Blue prime-focus Camera at the LBT
• Observing the products of stellar evolution in the old open cluster M67 with APOGEE
• Proper motions in Terzan 5: membership of the multi-iron sub-populations and first constrain to the orbit
• Photometric Study and Detection of Variable Stars in the Open Clusters - I : NGC 6866
• Apex determination and detection of stellar clumps in the open cluster M 67
• Stellar escapers from M67 can reach solar-like Galactic orbits
• Bayesian Hierarchical Modelling of Initial-Final Mass Relations Across Star Clusters
• The VMC survey XXVIII. Improved measurements of the proper motion of the Galactic globular cluster 47 Tucanae
• Dynamics of thick, open spirals in Perlas potentials
• Using Gaia DR2 to make a systematic comparison between two geometric distortion solutions
• The Implementation of Binned Kernel Density Estimation to Determine Open Clusters' Proper Motions: Validation of the Method