-
Chapter and Conference Paper
Observatorio Astronómico De Cantabria
The Astronomical Observatory of Cantabria is a center of the Consejería de Medio Ambiente del Gobierno de Cantabria managed by the Centro de Investigación del Medio Ambiente (CIMA), an autonomous organism which d...
-
Chapter and Conference Paper
Spectral Energy Distribution of Hyper-Luminous Infrared Galaxies
The relationship between star formation and super-massive black hole growth is central to our understanding of galaxy formation and evolution. Hyper-Luminous Infrared Galaxies (HLIRGs) are unique laboratories ...
-
Chapter and Conference Paper
Cosmic Evolution of Active Galactic Nuclei
The X-ray Luminosity Function (XLF) is a key tool to understand the evolution of Active Galactic Nuclei (AGN) and the variation in the accretion rate of matter onto the supermassive black hole that resides in ...
-
Chapter and Conference Paper
Average Iron Line Emission from Distant AGN
We have developed a new method to construct a high SNR X-ray average spectrum for type 1 and type 2 AGN in order to measure the main properties of the Fe Kα emission line. Our method takes into account all the...
-
Chapter and Conference Paper
Why Are Only High-Redshift Obscured AGN Bright Submillimeter Sources?
The bulk of the QSO luminosity density was produced at 1<z<3, and with 0.5-2 keV luminosities close to the break of the X-ray luminosity function [6,5]. We have used sensitive submillimetre (submm) observations [...
-
Chapter and Conference Paper
X-Ray Spectral Properties of XMM-Newton Axis Serendipitous Sources
We report a spectral analysis of X-ray sources detected serendipitously with the EPIC-pn detector onboard the XMM-Newton observatory. We have built a sample of 1837 sources selected in the energy band 0.5 – 4....
-
Article
X-ray Observations of Active Galactic Nuclei in the Cosmological Context
We review recent discoveries of obscured Active Galactic Nuclei at significant redshifts with X-ray observations. Most, if not all, the X-ray luminous galaxies found at faint X-ray fluxes could in fact be obsc...
-
Article
Cost-evaluation model for clinical trials in a hospital pharmacy service
A cost-evaluation model was applied to clinical trial protocols to estimate their cost for the hospital pharmacy service. The steps taken in the drug management of clinical research were identified. Fixed cost...
-
Article
A significant contribution to the cosmic X-ray background from sources associated with nearby galaxies
THE origin of the cosmic X-ray background remains a mystery after thirty years of study. The three properties of the background radiation commonly used for tackling this problem—its spectrum, isotropy and reso...
-
Article
The structure of the 1–3 keV X-ray background
The angular structure of the extragalactic 1–3 keV X-ray background has been tested down to scales of a few arc min with the use ofEinstein Observatory IPC data. This is used to gather information about X-ray sou...
-
Chapter and Conference Paper
Some Implications of the Small-Scale Isotropy of the X—Ray Background
Current upper limits on the Autocorrelation Function of the 1–3 keV X—ray background (XRB) are used to constrain clustering properties of high—redshift cosmic X—ray sources.
