D. Pelat

TL;DR: The Cherenkov Telescope Array (CTA) as discussed by the authors is a very high-energy (VHE) gamma ray observatory with an international collaboration with more than 1000 members from 27 countries in Europe, Asia, Africa and North and South America.

TL;DR: In this paper, an 8-month campaign of monitoring NGC 5548 with IUE is described, with the goal of determining the size and structure of the broad-line region in active galactic nuclei.

TL;DR: In this paper, the authors report on the results of intensive ultraviolet spectral monitoring of the Seyfert 1 galaxy NGC 3783, which was observed with the International Ultraviolet Explorer satellite on a regular basis for a total of 7 months, once every 4 days for the first 172 days and once every other day for the final 50 days.

TL;DR: In this paper, the results from ground-based observations in the optical and near-IR bands, which complement the data set formed by the International Ultraviolet Explorer (IUE) spectra, discussed elsewhere, were presented.

TL;DR: In this paper, the authors present the results of a five-month monitoring campaign of the active galactic nucleus in NGC 3227, where the Hbeta and Halpha emission lines and the optical continuum have been analyzed.