Publications (16)
The origin of the supersoft X-ray--optical/UV flux anticorrelation in the symbiotic binary AG Draconis
A. Skopal, M. Sekeras, R. Gonzalez-Riestra +1
AG Draconis produces a strong supersoft X-ray emission.The X-ray and optical/UV fluxes are in a strict anticorrelation throughout the active and quiescent phases. The aim of this c…
The INES System IV: The IUE Absolute Flux Scale
R. Gonzalez-Riestra, A. Cassatella, W. Wamsteker
This paper deals with the definition of the input fluxes used for the calibration of the IUE Final Archive. The method adopted consists on the determination of the shape of the det…
Calibration and in orbit performance of the reflection grating spectrometer onboard XMM-Newton
C. P. de Vries, J. W. den Herder, C. Gabriel +6
Context: XMM-Newton was launched on 10 December 1999 and has been operational since early 2000. One of the instruments onboard XMM-Newton is the reflection grating spectrometer (RG…
A study of the expanding envelope of Nova V1974 Cyg 1992 based on IUE high resolution spectroscopy
A. Cassatella, H. J. G. L. M. Lamers, C. Rossi +2
We have carried out a detailed analysis of the IUE archival high resolution spectra of the classical nova V1974 Cyg 1992. In addition to the P Cygni and emission lines, two shortwa…
XMM-Newton observations of the INTEGRAL X-ray transient J17544-2619
R. Gonzalez-Riestra, T. Oosterbroek, E. Kuulkers +2
On 2003 September 17 INTEGRAL discovered a bright transient source 3 degrees from the Galactic Center, IGR J17544-2619. The field containing the transient was observed by XMM-Newto…
Improved data extraction procedures for IUE Low Resolution Spectra: The INES System
P. M. Rodriguez-Pascual, R. Gonzalez-Riestra, N. Schartel +1
We present the extraction and processing of the IUE Low Dispersion spectra within the framework of the ESA ``IUE Newly Extracted Spectra'' (INES) System. Weak points of SWET, the o…
UV and X-Ray Monitoring of AG Draconis During the 1994/1995 Outbursts
J. Greiner, K. Bickert, R. Luthardt +3
The recent 1994-1995 active phase of AG Draconis has given us for the first time the opportunity to follow the full X-ray behaviour of a symbiotic star during two successive outbur…
The INES System III: Evaluation of IUE NEWSIPS High Resolution Spectra
R. Gonzalez-Riestra, A. Cassatella, E. Solano +2
This paper discusses the overall quality of IUE high resolution data processed with the NEWSIPS software in terms of flux and wavelength accuracy. It also describes the processing…
The INES System II: Ripple Correction and Absolute Calibration for IUE High Resolution Spectra
A. Cassatella, A. Altamore, R. Gonzalez-Riestra +4
In this paper we document the results of the study which led to the ripple correction and absolute calibration algorithms applied to the high resolution spectra processed with the…
Variability and multi-periodic oscillations in the X-ray light curve of the classical nova V4743 Sgr
E. Leibowitz, M. Orio, R. Gonzalez-Riestra +5
The classical nova V4743 Sgr was observed with XMM-Newton for about 10 hours on April 4 2003, 6.5 months after optical maximum. At this time, this nova had become the brightest sup…
WSO/UV: World Space Observatory/Ultraviolet
M. Hernanz, R. Gonzalez-Riestra, W. Wamsteker +13
We summarize the capabilities of the World Space Observatory (UV) Project (WSO/UV). An example of the importance of this project (with a planned launch date of 2007/8) for the stud…
From X-ray dips to eclipse: Witnessing disk reformation in the recurrent nova USco
J. -U. Ness, B. E. Schaefer, A. Dobrotka +9
The 10th recorded outburst of the recurrent eclipsing nova USco was observed simultaneously in X-ray, UV, and optical by XMM-Newton on days 22.9 and 34.9 after outburst. Two full p…
The UV/X-ray emission of the symbiotic star AG Draconis during quiescence and the 1994/1995 outbursts
J. Greiner, K. Bickert, R. Luthardt +4
We present the results of an extensive campaign of coordinated X-ray (ROSAT) and UV (IUE) observations of the symbiotic star AG Dra during a long period of quiescence (1990-1993) f…
CIELO-RGS: a catalogue of soft X-ray ionized emission lines
Junjie Mao, J. S. Kaastra, M. Guainazzi +9
High-resolution X-ray spectroscopy has advanced our understanding of the hot Universe by revealing physical properties like kinematics, temperature, and abundances of the astrophys…
The secrets of T Pyxidis II. A recurrent nova that will not become a SN Ia
P. Selvelli, A. Cassatella, R. Gilmozzi +1
By various methods, we obtained L 70 L and 1.1 10 Myr. These values were about twice as high in the pre-1…
The SSS phase of RS Ophiuchi observed with Chandra and XMM-Newton I.: Data and preliminary Modeling
J. -U. Ness, S. Starrfield, A. P. Beardmore +13
The phase of Super-Soft-Source (SSS) emission of the sixth recorded outburst of the recurrent nova RS Oph was observed twice with Chandra and once with XMM-Newton. The observations…