Optical studies of V404 Cyg, the X-ray transient GS2023 + 338. I - The 1989 outburst and decline
The results of optical spectroscopy and photometry of V404Cyg, the optical counterpart of the recently discovered X-ray transient GS2023 + 338, are presented...
Optical studies of V404 Cyg, the X-ray transient GS2023 + 338. II - High-resolution H-alpha spectroscopy in quiescence
Results of high-resolution optical spectroscopy of V404 Cyg (the optical counterpart of the X-ray transient GS2023 + 338), conducted 13 months after the May...
Optical Studies of V:404-CYGNI the X-Ray Transient GS:2023+338 - Part Three - the Secondary Star and Accretion Disc
We present new results from the analysis of 55 high-resolution spectra of V404 Cyg (the optical counterpart of the X-ray transient GS 2023+338) taken in 1991...
Optical Study of the Hyper-luminous X-Ray Source 2XMM J011942.7+032421
We present the identification and characterization of the optical counterpart to 2XMM J011942.7+032421, one of the most luminous and distant ultra-luminous X...
Optical Surface Photometry of a Sample of Disk Galaxies. I. Observations and Data Reduction
We present accurate optical surface photometry in the U, B, V, R, and I passbands for 11 disk galaxies. The sample has been selected in order to study the...
Optical surface photometry of a sample of disk galaxies. II. Structural components
This work presents the structural decomposition of a sample of 11 disk galaxies, which span a range of different morphological types. The U, B, V, R, and I...
Optical surface photometry of radio galaxies - I. Observations and data analysis
This is the first paper of a series aimed at studying the structural and photometric properties in the optical band of a sample of 95 radio galaxies. Detailed...
Optical surface photometry of radio galaxies. II. Observations and data analysis
Optical imaging observations for 50 radio galaxies are presented. For each object isophotal contours, photometric profiles, structural parameters (position...