Analysis of B and Be Star Populations of the Double Cluster h and chi Persei
Amber N. Marsh, M. Virginia McSwain, Thayne Currie
TL;DR
This study analyzes the properties of B and Be star populations in the h and chi Persei clusters using optical spectra and photometry, revealing stellar parameters and IR excesses.
Contribution
It provides detailed measurements of stellar parameters for B and Be stars in the clusters, combining spectroscopic and photometric data for comprehensive analysis.
Findings
Measured stellar parameters for 92 stars including V sin i, T_eff, and log g_polar.
Identified IR excesses in Be stars indicating circumstellar material.
Compared properties of B and Be star populations within the clusters.
Abstract
We present blue optical spectra of 92 members of h and chi Per obtained with the WIYN telescope at Kitt Peak National Observatory. From these spectra, several stellar parameters were measured for the B-type stars, including V sin i, T_eff, log g_polar, M_star, and R_star. Stromgren photometry was used to measure T_eff and log g_polar for the Be stars. We also analyze photometric data of cluster members and discuss the near-to-mid IR excesses of Be stars.
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