G. L. Vieira

TL;DR: In this paper, the authors investigated the environment of the nearest Herbig Ae star, HD 104237, with a multiwavelength combination of optical coronagraphic, near-IR, and mid-IR imaging supported by optical, UV, and far-ultraviolet spectroscopy.

TL;DR: In this article, the physical conditions in intrinsic UV-absorbing gas in the Seyfert galaxy NGC 4151, using echelle spectra obtained with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope on 1999 July 19.

TL;DR: Using the high-dispersion near-UV (NUV) mode of the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space Telescope (HST) to observe η Carinae, this article resolved and identified over 500 sharp circumstellar absorption lines of iron-group singly ionized and neutral elements with ≈20 velocity components ranging from -146 to -585 km s-1.

TL;DR: An atlas of ultraviolet absorption-line profiles toward four stars in the Carina Nebula is presented in this paper, with the observations made with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope, with a resolving power of 114,000.

TL;DR: In this paper, two observations of the complex interstellar absorption-line profiles in the UV spectrum of CPD -59°2603, obtained 22 months apart in the R ~ 110,000 mode of the Space Telescope Imaging Spectrograph on the Hubble Space Telescope, reveal substantial variations in the intensities of several high-velocity components, including the virtual disappearance of one of them.