ASAS Light Curves of Intermediate Mass Eclipsing Binaries and the Parameters of HI Mon

TL;DR

This paper catalogs 56 intermediate mass eclipsing binaries from ASAS data, derives their orbital parameters, and provides detailed spectroscopic and photometric analysis for HI Mon, contributing valuable data for stellar evolution studies.

Contribution

It introduces a new catalog of intermediate mass eclipsing binaries and presents detailed combined spectroscopic and photometric analysis for HI Mon, enhancing understanding of such systems.

Findings

66% of systems are newly identified in databases

Spectroscopic data obtained for HI Mon at key phases

Combined analysis yields stellar parameters for HI Mon components

Abstract

We present a catalog of 56 candidate intermediate mass eclipsing binary systems extracted from the 3rd data release of the All Sky Automated Survey. We gather pertinent observational data and derive orbital properties, including ephemerides, for these systems as a prelude to anticipated spectroscopic observations. We find that 37 of the 56, or ~66% of the systems are not identified in the Simbad Astronomical Database as known binaries. As a specific example, we show spectroscopic data obtained for the system HI Mon (B0 V + B0.5 V) observed at key orbital phases based on the computed ephemeris, and we present a combined spectroscopic and photometric solution for the system and give stellar parameters for each component.