78 citations · 118 across the 6 of their papers we have counts for
6 papers
Compton-thick active galactic nuclei from the 7 Ms observation in the Chandra Deep Field South
A. Corral, I. Georgantopoulos, A. Akylas +1
We present the X-ray spectroscopic study of the Compton-thick (CT) active galactic nuclei (AGN) population within the Deep Field South (CDF-S) by using the deepe…
Hubble Catalog of Variables
M. Yang, A. Z. Bonanos, P. Gavras +22
The Hubble Catalog of Variables (HCV) project aims to identify the variable sources in the Hubble Source Catalog (HSC), which includes about 92 million objects with over 300 millio…
Comparison between optical and X-ray cluster detection methods
S. Basilakos, M. Plionis, S. Georgakakis +4
In this work we present combined optical and X-ray cluster detection methods in an area near the North Galactic Pole area, previously covered by the SDSS and 2dF optical surveys. T…
X-ray luminous galaxies I. Chandra observations of IRAS00317-2142
I. Georgantopoulos, A. Zezas, M. J. Ward
We present Chandra observations of the enigmatic galaxy IRAS00317-2142, which is classified as a star-forming galaxy on the basis of the ionization level of its emission lines. How…
BeppoSAX observations of LINER-2 galaxies
I. Georgantopoulos, F. Panessa, A. Akylas +3
We present BeppoSAX observations of 6 ``type-2'' LINER and ``transition'' galaxies (NGC3379, NGC3627, NGC4125, NGC4374, NGC5195 and NGC5879)from the Ho et al. (1997) spectroscopic…
Searching for cluster substructure using APM and ROSAT data
Vaggelis Kolokotronis, Spyros Basilakos, Manolis Plionis +1
We present a detailed study of the morphological features of 22 rich galaxy clusters. Our sample is constructed from a cross-correlation of optical (Abell+APM) data with X-ray (0.1…