Apex determination and detection of stellar clumps in the open cluster M 67
arXiv:1403.2532 · doi:10.1016/j.newast.2014.02.008
Abstract
We determined the cluster apex coordinates, studied the substructures and performed membership analysis in the central part (34'X33') of the open cluster M 67. We used the individual stellar apexes method developed earlier and classical technique of proper motion diagrams in coordinate system connected with apex. The neighbour-to-neighbour distance technique was applied to detect space details. The membership list was corrected and some stars were excluded from the most probable members list. The apex coordinates have been determined as: A0=132.97deg+/-0.81deg and D0=11.85deg+/-0.90deg. The 2D-space star density field was analysed and high degree of inhomogeneity was found.
20 Pages, 8 Figures, 7 Tables Accepted for publication to New Astronomy
References in corpus (4)
- 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
- Absolute proper motion of the Galactic open cluster M67
- MOST satellite photometry of stars in the M67 field: Eclipsing binaries, blue stragglers and delta-Scuti variables
Cited by in corpus (4)
- An investigation of poorly studied open cluster NGC 4337 using multi-color photometric and Gaia DR2 astrometric data
- A comprehensive analysis of NGC 2158 in Gaia era: photometric parameters, apex and orbit
- A Gaia based photometric and kinematic analysis of the old open cluster King 11
- Study of X-ray emission from the old open cluster, M67