The Stellar Population and Orbit of the Galactic Globular Cluster Palomar 3

Abstract

Deep stellar photometry of one of the most distant Galactic globular clusters, Palomar 3, based on frames taken with the VLT in Johnson-Cousins broadband V and Ifilters is presented, together with medium-resolution stellar spectroscopy in the central region of the cluster obtained with the CARELEC spectrograph of the Observatoire de Haute Provence and measurements of the Lick spectral indices for the integrated spectrum. Computations of the orbital parameters of Palomar 3 and nine Galactic globular clusters with similar metallicities and ages are also presented. The orbital parameters, age, metallicity, and distance of Palomar 3 are estimated. The interstellar absorption is consistent with and supplements values from the literature. The need to obtain more accurate data on the proper motions, ages, and chemical compositions of the cluster stars to elucidate the origin of this globular cluster is emphasized.

arXiv comment20 pages, 8 tables, 7 figures

References in corpus (42)

• The chemical composition of the Sun
• Galactic Stellar and Substellar Initial Mass Function
• On the variation of the Initial Mass Function
• Local Kinematics and the Local Standard of Rest
• Monitoring stellar orbits around the Massive Black Hole in the Galactic Center
• MILES: A Medium resolution INT Library of Empirical Spectra
• A large stellar evolution database for population synthesis studies. I. Scaled solar models and isochrones
• Global survey of star clusters in the Milky Way II. The catalogue of basic parameters
• Old Stellar Populations. VI. Absorption-Line Spectra of Galaxy Nuclei and Globular Clusters
• The Stellar Population Histories of Local Early-Type Galaxies. I. Population Parameters
• Destruction of the Galactic Globular Cluster System
• Properties of stellar generations in Globular Clusters and relations with global parameters
• The ACS Survey of Galactic Globular Clusters. VII. Relative Ages
• A database of high and medium-resolution stellar spectra
• ULySS: A Full Spectrum Fitting Package
• The Milky Way's circular velocity curve between 4 and 14 kpc from APOGEE data
• Scaled solar tracks and isochrones in a large region of the Z-Y plane I. From the ZAMS to the TP-AGB end for 0.15 - 2.5 Mo stars
• The YY Isochrones for alpha-element Enhanced Mixtures
• Evolutionary synthesis of galaxies at high spectral resolution with the code PEGASE-HR
• The properties of Galactic globular cluster sub-systems
• Higher-order Balmer line indices in alpha/Fe-enhanced stellar population models
• The second and third parameters of the Horizontal Branch in Globular Clusters
• Spectroscopic ages and metallicities of stellar populations: validation of full spectrum fitting
• Building up the globular cluster system of the Milky Way. The contribution of the Sagittarius galaxy
• The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters
• New Clues on the Calcium Underabundance in Early-Type Galaxies
• The Identification of Blue Horizontal Branch Stars in the Integrated Spectra of Globular Clusters
• The devil is in the tails: the role of globular cluster mass evolution on stream properties
• On the Distribution of Orbital Poles of Milky Way Satellites
• Ages for Globular Clusters in the Outer Galactic Halo: The Second Parameter Clusters Palomar~3, Palomar~4 and Eridanus
• A Panchromatic Study of the Globular Cluster NGC 1904. I: The Blue Straggler Population
• A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations
• Prolate rotation and metallicity gradient in the transforming dwarf galaxy Phoenix
• Globular Clusters in the Outer Galactic Halo: AM-1 and Palomar 14
• Probable member stars of the gravitational theory-testing globular clusters AM 1, Pal 3 and Pal 14
• Horizontal-Branch Models and the Second-Parameter Effect. IV. The Case of M3 and Palomar 3
• All quiet in the outer halo: chemical abundances in the globular cluster Pal 3
• Star Clusters in M 31. IV. A Comparative Analysis of Absorption Line Indices in Old M 31 and Milky Way Clusters
• The Proper Motion of Pyxis: the first use of Adaptive Optics in tandem with HST on a faint halo object
• Modeling and Analysis of a Spectrum of the Globular Cluster NGC 2419
• Nuclei of dwarf spheroidal galaxies KKs3 and ESO269-66 and their counterparts in our Galaxy
• Chemical Abundances in the Globular Clusters NGC 6229 and NGC 6779

Cited by in corpus (3)

• Accurate distances to Galactic globular clusters through a combination of Gaia EDR3, HST and literature data
• A Search for Gas-Rich Dwarf Galaxies in the Local Universe with ALFALFA and the WIYN One Degree Imager
• An efficient integrator for stellar dynamics in effective gravity fields based on the isochrone potential