A Spectroscopic Analysis of Blue Stragglers, Horizontal Branch and Turn-Off Stars in Four Globular Clusters

Preprint

16 November 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0511497

Abstract

We present a spectroscopic analysis of HST/STIS and FOS low- and intermediate-resolution spectroscopy of 55 stars (turn-off stars, horizontal branch stars and blue stragglers) in four globular clusters (47 Tucanae, M3, NGC6752, and NGC6397). Stars were analyzed with non-Local Thermodynamic Equilibrium model atmospheres, and values for their effective temperatures and gravities and some rotation rates were obtained. Using photometric fluxes, we also obtained radii, luminosities and spectroscopic masses.

Keywords

SPECTROSCOPIC ANALYSIS
HORIZONTAL BRANCH
MODEL ATMOSPHERES
GLOBULAR CLUSTERS
BLUE STRAGGLERS
FOUR GLOBULAR
STRAGGLERS
GRAVITIES
RADII

All Related Versions

Version 1, 2005-11-16, ArXiv
Published version: The Astrophysical Journal, 632 (2), 894.

This publication has 0 references indexed in Scilit: