X. Barcons
A5015394755- Astrophysical Phenomena and Observations
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Cosmic Phenomena
- Astronomy and Astrophysical Research
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Particle Detector Development and Performance
- Pulsars and Gravitational Waves Research
- Stellar, planetary, and galactic studies
- Cosmology and Gravitation Theories
- Scientific Research and Discoveries
- Dark Matter and Cosmic Phenomena
- Superconducting and THz Device Technology
- Adaptive optics and wavefront sensing
- Advanced X-ray Imaging Techniques
- Astrophysics and Star Formation Studies
- X-ray Spectroscopy and Fluorescence Analysis
- Calibration and Measurement Techniques
- Relativity and Gravitational Theory
- Scientific Measurement and Uncertainty Evaluation
- Radio Astronomy Observations and Technology
- Particle Accelerators and Free-Electron Lasers
- Radioactive Decay and Measurement Techniques
- Medical Imaging Techniques and Applications
- Geophysics and Gravity Measurements
Instituto de Física de Cantabria
2008-2023
Universidad de Cantabria
2001-2017
Instituto de Astrofísica de Andalucía
2016
Consejo Superior de Investigaciones Científicas
2004-2015
Athena Group (United States)
2012
National Institute for Astrophysics
2010
Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna
2010
University of California, Irvine
2010
Roma Tre University
2010
Brera Astronomical Observatory
2010
This White Paper, submitted to the recent ESA call for science themes define its future large missions, advocates need a transformational leap in our understanding of two key questions astrophysics: 1) How does ordinary matter assemble into scale structures that we see today? 2) do black holes grow and shape Universe? Hot gas clusters, groups intergalactic medium dominates baryonic content local Universe. To understand astrophysical processes responsible formation assembly these structures,...
Aims. Pointed observations with XMM-Newton provide the basis for creating catalogues of X-ray sources detected serendipitously in each field. This paper describes creation and characteristics 2XMM catalogue.
We present a highly complete and reliable mid-infrared (MIR) colour selection of luminous AGN candidates using the 3.4, 4.6, 12 um bands WISE survey. The MIR wedge was defined wide-angle Bright Ultra-Hard XMM-Newton Survey (BUXS), one largest flux-limited samples bright (f(4.5-10 keV)>6x10^{-14} erg cm^-2 s^-1) "ultra-hard" (4.5-10 keV) X-ray selected to date. BUXS includes 258 objects detected over total sky area 44.43 deg^2 which 251 are spectroscopically identified classified, with 145...
The X-ray Integral Field Unit (X-IFU) is the high resolution spectrometer of ESA Athena observatory. Over a field view 5' equivalent diameter, it will deliver spectra from 0.2 to 12 keV with spectral 2.5 eV up 7 on ∼ 5" pixels. X-IFU based large format array super-conducting molybdenum-gold Transition Edge Sensors cooled at 90 mK, each coupled an absorber made gold and bismuth pitch 249 μm. A cryogenic anti-coincidence detector located underneath prime TES enables non background be reduced....
XIPE, the X-ray Imaging Polarimetry Explorer, is a mission dedicated to Astronomy. At time of writing XIPE in competitive phase A as fourth medium size ESA (M4). It promises reopen polarimetry window high energy Astrophysics after more than 4 decades thanks detector that efficiently exploits photoelectric effect and optics with large effective area. uniqueness time-spectrally-spatially- resolved breakthrough astrophysics fundamental physics. Indeed payload consists three Gas Pixel Detectors...
We report on the first deep X-ray survey with XMM-Newton observatory during performance verification phase. The field of Lockman Hole, one best studied sky areas over a very wide range wavelengths, has been observed. A total ~100 ksec good exposure time accumulated. Combining images European Photon Imaging Camera (EPIC) detectors we reach flux limit 0.31, 1.4 and , respectively in 0.5-2, 2-10, 5-10 keV band. Within an off-axis angle 10 arcmin detect 148, 112 61 sources, respectively....
We investigate the relation between X-ray nuclear emission, optical emission line luminosities and black hole masses for a sample of 47 Seyfert galaxies. The sample, which has been selected from Palomar spectroscopic survey nearby galaxies (Ho et al. 1997a, ApJS, 112, 315), covers wide range powers, ~ 1043 erg/s down to very low ( 1038 erg/s). Best available data Chandra, XMM-Newton and, in few cases, ASCA observations have considered. Thanks good spatial resolution these proper modeling...
<i>Context. <i/>There have been recent claims that a significant fraction of type 2 AGN accrete close to or even above the Eddington limit. In AGN, bolometric luminosity (<i>L<i/><sub>b<sub/>) is generally inferred from [OIII] emission line (<i>L<i/><sub>OIII<sub/>). The key issue in estimating these therefore know correction be applied <i>L<i/><sub>OIII<sub/>. A complication arises observed <i>L<i/><sub>OIII<sub/> being affected by extinction, most likely dust within narrow region....
We present the first results of spectroscopy distant, obscured AGN as obtained with ultra-deep (~3.3 Ms) XMM-Newton survey in Chandra Deep Field South (CDFS). One primary goals project is to characterize X-ray spectral properties and heavily Compton-thick over range redhifts luminosities that are relevant terms their contribution background. The exposure, coupled XMM detector's throughput, allowed us accumulate good quality spectra for a large number sources and, particular, at cosmological...
The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution spectroscopy from 0.2 to 12 keV, with 5 arc second pixels over a field of view minute equivalent diameter and spectral resolution 2.5 eV up 7 keV. In this paper, we first review core scientific objectives Athena, driving main performance parameters X-IFU, namely resolution, view, effective area, count rate capabilities, instrumental...
Observations of the X‐ray sky after next decade will most likely be dominated by Athena (Advanced Telescope for High ENergy Astrophysics), second large mission ESA 's Cosmic Vision 2015–2035 programme. has been conceived to address “Hot and Energetic Universe” science theme, which focuses on assembly evolution hot baryons in cosmic structures as well physics energetic output generated accreting super‐massive black holes, along with relationship between two processes, dubbed feedback. Thanks...
We have determined the relation between AGN luminosities at rest-frame 6 {\mu}m associated to dusty torus emission and 2-10 keV energies using a complete, X-ray flux limited sample of 232 drawn from Bright Ultra-hard XMM-Newton Survey. The objects intrinsic 10^42 10^46 erg/s redshifts 0.05 2.8. were computed data Wide-Field Infrared Survey Explorer are based on spectral energy distribution decomposition into galaxy emission. best-fit relationship for full is consistent with being linear, L_6...
We describe the European Large Area ISO Survey (ELAIS). ELAIS was largest single Open Time project conducted by ISO, mapping an area of 12 deg2 at 15 μm with ISOCAM and 90 ISOPHOT. Secondary surveys in other bands were undertaken team within fields primary survey, 6 being covered 6.7 1 175 μm. This paper discusses goals techniques employed its construction, as well presenting details observations carried out, data from which are now public domain. outline 'preliminary analysis' led to...
We present initial results of a program to obtain and analyze Hubble Space Telescope (HST) Wide Field Planetary Camera 2 images galaxies identified in an imaging spectroscopic survey faint fields HST target QSOs. measure properties 87 galaxies, which 33 are associated with corresponding Lyα absorption systems 24 do not produce lines within sensitive upper limits. Considering only galaxy absorber pairs that likely be physically excluding 3000 km s-1 the background QSOs leaves 26 seven...
My life has been an interesting voyage. I became astronomer because could not imagine living on Earth and trying to understand how the Universe works. scientific career revolved around observing motions of stars within galaxies ...Read More
We present the results of correlation between nuclear 2–10 keV X-ray and radio (at 2 cm, 6 20 cm) luminosities for a well-defined sample local Seyfert galaxies. use low luminosity galaxies (LLRGs) comparison. In both LLRG samples, are significantly correlated over 8 orders magnitude, indicating that emission sources strongly coupled. Moreover, samples show similar regression slope, LX , but three magnitude less luminous in band than LLRGs. This suggests either physical mechanisms responsible...
Hot gas pervades the Universe: about half of baryonic content in Universe is expected to be at T > 105 K, and there are as many baryons 107 trapped galaxy clusters locked into stars. There an intimate relation between this hot gas, which delineates large-scale structure Universe, most energetic phenomena occurring immediate vicinity super-massive black holes, through a poorly known process called Cosmic Feedback. Studying universe requires X-ray observatories space, whose capabilities...
We present results of a program to obtain and analyze HST WFPC2 images ground-based galaxies identified in an imaging spectroscopic survey faint fields target QSOs. Considering sample physically correlated galaxy absorber pairs with galaxy-absorber cross-correlation amplitude ξga(v,ρ) > 1 impact parameter ρ < 200 h-1 kpc, we confirm improve the presented by Lanzetta et al. Chen that (1) extended gaseous envelopes are common generic feature wide range luminosity morphological type, (2) extent...