A High‐Dispersion Spectroscopic Survey of the Hot White Dwarfs: The IUE NEWSIPS SWP Echelle Data Set
作者： J. B. Holberg , M. A. Barstow , E. M. Sion
DOI: 10.1086/313161
关键词: Wavelength scale 、 Spectral line 、 Dispersion (optics) 、 Data set 、 Astrophysics 、 Flux 、 Planetary nebula 、 Physics 、 White dwarf 、 Astronomy 、 Stars 、 Space and Planetary Science 、 Astronomy and Astrophysics
摘要: This paper summarizes the results obtained from a comprehensive analysis of all SWP echelle spectra white dwarf stars contained in IUE Final Archive. A total 209 NEWSIPS 55 degenerate various types have been systematically reduced and analyzed. These include, addition to conventional dwarfs, several examples hot planetary nebula central such as NGC 246, which represent initial stages He-rich evolution. representative summary stellar, circumstellar, interstellar features found be present these is presented. For 33 stars, multiple sufficient quality exist so that co-added with improved signal-to-noise ratio can constructed. Much previously unrecognized detail many new are evident data. In addition, it was necessary apply corrections extracted spectra. corrections, involving wavelength scale flux uncertainty vector, described.
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