A Detailed Far-Ultraviolet Spectral Atlas of O-Type Stars
Myron A. Smith

TL;DR
This paper provides a comprehensive far-ultraviolet spectral atlas of O-type stars, identifying atmospheric and interstellar lines, and offering data for stellar analysis across different populations and metallicities.
Contribution
It presents the first detailed spectral atlas of O-type stars in the 930-1188A range, including line identifications and spectral synthesis comparisons, for both Galactic and Magellanic Cloud stars.
Findings
Identified over 1700 atmospheric lines in O-type stars.
Line identification accuracy improves with earlier spectral types.
Provides spectral data useful for temperature and chemical anomaly analysis.
Abstract
In this paper we present a spectral atlas covering the wavelength interval 930--1188A for O2--O9.5 stars using Far Ultraviolet Spectroscopic Explorer archival data. The stars selected for the atlas were drawn from three populations: Galactic main sequence (class III-V) stars, supergiants, and main sequence stars in the Magellanic Clouds, which have low metallicities. For each of these stars we have prepared FITS files comprised of paris of merged spectra for user access via the Multi-Mission Archives at Space Telescope. We chose spectra from the first population with spectral types O4, O5, O6, O7, O8, and O9.5 and used them to compile tables and figures with identifications of all possible atmospheric and ISM lines in the region 949-1188A. Our identified line totals for these six representative spectra are 821 (500), 992 (663), 1077 (749), 1178 (847), 1359 (1001), and 1798 (1392) lines,…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
