Low resolution spectroscopy of selected Algol systems

TL;DR

This study analyzes spectroscopic data of 30 short-period Algol binaries, identifying spectral lines, examining mass transfer signs, and highlighting the need for higher resolution spectra for better understanding.

Contribution

It provides the first spectroscopic and period analysis for some Algol systems, emphasizing the importance of high-resolution spectra for detailed insights.

Findings

Identification of dominant spectral lines

Evidence of mass transfer and circumstellar matter

Need for high-resolution spectra for improved analysis

Abstract

The analysis of spectroscopic data for 30 Algol-type binaries is presented. All these systems are short period Algols having primaries with spectral types B and A. Dominant spectral lines were identified for the spectra collected and their equivalent widths were calculated. All the spectra were examined to understand presence of mass transfer, a disk or circumstellar matter and chromospheric emission. We also present first spectroscopic and period study for few Algols and conclude that high resolution spectra within and outside the primary minimum are needed for better understanding of these Algol type close binaries.