XEUS: the physics of the hot evolving universe (2009)
Arnaud, Monique, Barcons, Xavier, Barret, Didier, Bautz, Marshall, Bellazzini, Ronaldo, Bleeker, Johan, ...
Barcons, Xavier, Carrera, Francisco J., Ceballos, María Teresa, Page, M. J., Bussons-Gordo, Javier, Corral, Amalia, ...
13 pages, 6 figures, 7 tables.-- ISI Article Identifier: 000251507500014.-- ArXiv pre-print available at: http://arxiv.org/abs/0710.0402
Searching for the Missing Baryons in the Warm-Hot Intergalactic Medium (2007)
Proceedings of the "XMM-Newton: the next decade", to appear in Astronomische Nachrichten.
El espectacular auge de la astronomía en España (2007)
Barcons, Xavier, Rodrigo Montero, Rafael
Publicado en el número 727 (2007) de 'Arbor: Ciencia, Pensamiento, Cultura', bajo el título monográfico: "10+2 enfoques de política científica en España".
INTEGRAL/XMM views on the MeV source GRO J1411-64 (2007)
Torres, Diego F., Zhang, Shu, Reimer, Olaf, Barcons, Xavier, Corral, Amalia, Bosch-Ramon, Valentí, ...
El espectacular auge de la astronomía en España (2007)
Barcons, Xavier, Rodrigo, Rafael
The development of Astronomical research in Spain during the last 30 years has been truly spectacular. From a handful of active researchers and a dozen scientific publications in international...
INTEGRAL/XMM views on the MeV source GRO J1411-64 (2006)
Torres, Diego F., Zhang, Shu, Reimer, Olaf, Barcons, Xavier, Corral, Amalia, Bosch-Ramon, Valentí, ...
The COMPTEL unidentified source GRO J 1411-64 was observed by INTEGRAL and XMM-Newton in 2005. The Circinus Galaxy is the only source detected within the 4$\sigma$ location error of GRO J1411-64, but...
INTEGRAL and XMM-Newton observations towards the unidentified MeV source GRO J1411-64 (2006)
Torres, Diego F., Zhang, Shu, Reimer, Olaf, Barcons, Xavier, Corral, Amalia, Bosch-Ramon, Valenti, ...
The COMPTEL unidentified source GRO J1411-64 was observed by INTEGRAL, and its central part, also by XMM-Newton. The data analysis shows no hint for new detections at hard X-rays. The upper limits in...
EURECA: a european-japanese micro-calorimeter array (2006)
Anquita, Jose V., Barcons, Xavier, Bastia, Paolo, Beyer, Jörn, Briones, Fernando, ...
Proc. SPIE Vol. 6266, Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray; Martin J. Turner, Günther Hasinger; Eds. SPIE Astronomical Telescopes and Instrumentation 2006. Orlando,...
10 pages.-- Contribution to the 39th ESLAB symposium, ESA-SP (in press).
Probing the precession of the inner accretion disk in Cygnus X-1 (2005)
Torres, Diego F., Romero, Gustavo E., Barcons, Xavier, Lu, Youjun
We show that changes in the orientation of the inner accretion disk of Cygnus X-1 affect the shape of the broad Fe K$\alpha$ emission line emitted from this object, in such a way that eV-level...
Tentative detection of warm intervening gas towards PKS 0548-322 with XMM-Newton (2005)
Barcons, Xavier, Paerels, F. B. S., Carrera, Francisco J., Ceballos, María Teresa, Sako, M.
9 pages, 10 ps figures.-- Accepted by Mon. Not. Roy. Astron. Soc.
Hashimoto, Yasuhiro, Barcons, Xavier, Boehringer, Hans, Fabian, Andrew C., Hasinger, Guenther, Mainieri, Vincenzo, ...
We report on the XMM-Newton (XMM) observation of RXJ1053.7+5735, one of the most distant X-ray selected clusters of galaxies, which also shows an unusual double-lobed X-ray morphology, indicative of...
DUO - the Dark Universe Observatory (2004)
Griffiths, Richard, Petre, Robert, Hasinger, Günther, Predehl, Peter, White, Nicholas E., Aschenbach, Bernd, ...
Torres, Diego F., Romero, Gustavo E., Barcons, Xavier, Lu, Youjun
We propose the study of long-term variations in the Fe Kalpha line profile as a discriminator for binary black hole (BH) systems. The existence of a binary BH in the center of an active galaxy will...
Highlights from XMM-Newton (2003)
Barcons, Xavier, Negueruela, Ignacio
El lanzamiento de los observatorios de rayos X Chandra (NASA) y XMM-Newton (ESA) en 1999 ha revolucionado nuestra visión del Universo, al proporcionar información astrofísica detallada sobre...
Highlights from XMM-Newton (2003)
Barcons, Xavier, Negueruela, Ignacio
El lanzamiento de los observatorios de rayos X Chandra (NASA) y XMM-Newton (ESA) en 1999 ha revolucionado nuestra visión del Universo, al proporcionar información astrofísica detallada sobre...
The XMM-Newton Survey Science Centre Medium Sensitivity Survey (2002)
Barcons, Xavier, Carrera, Francisco J., Ceballos, María Teresa, Mateos, Silvia, Page, M. J., Pérez-Fournon, I., ...
Proceedings of the "X-ray surveys, in the light of the new observatories" workshop, Astronomische Nachrichten, in press (4 pages, 5 eps figures, uses an.cls).
Chen, Hsiao-Wen, Lanzetta, Kenneth M., Webb, John K., Barcons, Xavier
(Abridged) We present results of a program to obtain and analyze HST WFPC2 images and ground-based images of galaxies identified in an imaging and spectroscopic survey of faint galaxies in fields of...
Constraints on the Unseen Galaxy Population from the Lyman-alpha Forest (1998)
Lanzetta, Kenneth M., Chen, Hsiao-Wen, Webb, John K., Barcons, Xavier
Here we describe results of our attempt to determine what types of galaxies are responsible for the Lyman-alpha forest absorption systems, based on our ongoing imaging and spectroscopic survey of...
Environmental Dependence of the Nature of Gaseous Envelopes of Galaxies at z < 1 (1998)
Yahata, Noriaki, Lanzetta, Kenneth M., Webb, John K., Barcons, Xavier
We present new statistical study on the origin of Lyman-alpha absorption systems that are detected in QSO fields. The primary objective is to investigate environmental dependence of the relationship...
The Galaxy-Absorber Cross-Correlation Function (1997)
Lanzetta, Kenneth M., Webb, John K., Barcons, Xavier
We describe an analysis of the galaxy-absorber cross-correlation function as a function of velocity separation, impact parameter separation, and absorber Lyman alpha equivalent width on impact...
Damped Lyman-alpha Absorption Associated with an Early-Type Galaxy at Redshift z = 0.16377 (1997)
Lanzetta, Kenneth M., Wolfe, Arthur M., Altan, Hakan, Barcons, Xavier, Chen, Hsiao-Wen, Fernandez-Soto, Alberto, ...
We report new HST and ground-based observations of a damped Lyman-alpha absorption system toward the QSO 0850+4400. The redshift of the absorption system is z = 0.163770 and the neutral hydrogen...
The colour of the Deep ROSAT X-ray sky fluctuations (1996)
Ceballos, M. Teresa, Barcons, Xavier, Carrera, Francisco J.
We have carried out a fluctuation analysis in four bands (R4, R5, R6 and R7 corresponding to 0.44-1.01 keV, 0.56-1.21 keV, 0.73-1.56 keV and to 1.05-2.04 keV respectively) of two very deep ROSAT PSPC...
Soft versus Hard X-ray emission in AGN: partial covering and warm plus cold absorber models (1996)
Ceballos, M. Teresa, Barcons, Xavier
We analyse the ROSAT PSPC hardness ratio and the 0.5-2 keV to 2-10 keV flux ratio of 65 Active Galactic Nuclei (AGN) for which there are both ROSAT archival observations available and 2-10 keV...