Chi-Chao Wu

TL;DR: In this article, ultraviolet observations of nearby galaxies with the ANS were used to derive ultraviolet spectra for different galaxy types, and these spectra were used with existing visible spectrophotometry to calculate K-corrections, and to predict colors and magnitudes for various galaxy types as a function of redshifts, to z = 2.

TL;DR: In this article, the authors present a study of the intrinsic absorption lines in the ultraviolet spectra of Seyfert 1 galaxies and find that the fraction of galaxies that show intrinsic absorption associated with their active nuclei is more than one-half (10 of 17), which is much higher than previous estimates (3%-10%) based on IUE data.

TL;DR: In this paper, a library of mean UV stellar energy distributions is derived from IUE spectrophotometry of 218 stars, covering O3-M4 spectral types, and the spectra cover 1230-3200 A with a spectral resolution of about 6 A. They have been corrected for interstellar extinction and converted to a common flux and wavelength scale.

TL;DR: In this article, the physical conditions in the narrow-line regions of two Seyfert 2 galaxies, NGC 7674 and I Zw 92, were examined using IUE spectra, published optical spectra and multifrequency observations, and photoionization models.

TL;DR: In this article, very strong, broad absorption lines of a sdOB star continuum shown in the International Ultraviolet Explorer spectrum of the Schweizer-Middleditch star projected near the center of supernova remnant SNR 1006 are investigated.