Bright stars observed by FIMS/SPEAR

TL;DR

This paper presents a new catalogue of far-ultraviolet spectra for 209 bright stars observed by FIMS/SPEAR, including 70 first-time observations, validated against IUE data, enhancing stellar spectral data in the 1370-1710 Å range.

Contribution

The study provides the first spectra of 70 bright stars with high resolution and improves the data quality for 139 others, expanding ultraviolet stellar spectral catalogs.

Findings

Spectra of 70 stars obtained for the first time.

Validated spectral extraction method by comparison with IUE data.

Enhanced spectral data quality for 139 stars.

Abstract

In this paper, we present a catalogue of the spectra of bright stars observed during the sky survey using the Far-Ultraviolet Imaging Spectrograph (FIMS), which was designed primarily to observe diffuse emissions. By carefully eliminating the contamination from the diffuse background, we obtain the spectra of 70 bright stars observed for the first time with a spectral resolution of 2--3 {\AA} over the wavelength of 1370--1710 {\AA}. The far-ultraviolet spectra of an additional 139 stars are also extracted with a better spectral resolution and/or higher reliability than those of the previous observations. The stellar spectral type of the stars presented in the catalogue spans from O9 to A3. The method of spectral extraction of the bright stars is validated by comparing the spectra of 323 stars with those of the International Ultraviolet Explorer (IUE) observations.