Search Publications
The CoRoT satellite in flight: description and performance
Guterman, P.; Auvergne, M.; Jorda, L. +107 more
Context: CoRoT is a space telescope dedicated to stellar seismology and the search for extrasolar planets. The mission is led by the CNES in association with French laboratories and has a large international participation. The European Space Agency (ESA), Austria, Belgium, and Germany contribute to the payload, and Spain and Brazil contribute to t…
Galaxy cluster X-ray luminosity scaling relations from a representative local sample (REXCESS)
Böhringer, H.; Arnaud, M.; Pratt, G. W. +1 more
We examine the X-ray luminosity scaling relations of 31 nearby galaxy clusters from the Representative XMM-Newton Cluster Structure Survey (REXCESS). The objects are selected only in X-ray luminosity, optimally sampling the cluster luminosity function. Temperatures range from 2 to 9 keV, and there is no bias toward any particular morphological typ…
The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics
Holmberg, J.; Nordström, B.; Andersen, J.
Context: Ages, chemical compositions, velocity vectors, and Galactic orbits for stars in the solar neighbourhood are fundamental test data for models of Galactic evolution. The Geneva-Copenhagen Survey of the Solar Neighbourhood (Nordström et al. 2004; GCS), a magnitude-complete, kinematically unbiased sample of 16 682 nearby F and G dwarfs, is th…
Transiting exoplanets from the CoRoT space mission. VIII. CoRoT-7b: the first super-Earth with measured radius
Mazeh, T.; Guterman, P.; Aigrain, S. +158 more
Aims: We report the discovery of very shallow (Δ F/F ≈ 3.4× 10-4), periodic dips in the light curve of an active V = 11.7 G9V star observed by the CoRoT satellite, which we interpret as caused by a transiting companion. We describe the 3-colour CoRoT data and complementary ground-based observations that support the planetary nature of t…
The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue
Pietsch, W.; Motch, C.; Brusa, M. +47 more
Aims: Pointed observations with XMM-Newton provide the basis for creating catalogues of X-ray sources detected serendipitously in each field. This paper describes the creation and characteristics of the 2XMM catalogue.
Methods: The 2XMM catalogue has been compiled from a new processing of the XMM-Newton EPIC camera data. The main features of t…
Resolving the mid-infrared cores of local Seyferts
Vignali, C.; Gilli, R.; Comastri, A. +5 more
We present new photometry of 16 local Seyferts including 6 Compton-thick sources in N-band filters around 12-µm, obtained with the VISIR instrument on the 8-m Very Large Telescope. The near-diffraction-limited imaging provides the least-contaminated core fluxes for these sources to date. Augmenting these with our previous observations and wi…
Multiple stellar populations in Magellanic Cloud clusters. I. An ordinary feature for intermediate age globulars in the LMC?
Anderson, J.; Milone, A. P.; Bedin, L. R. +1 more
Context: The discovery of multiple main sequences (MS) in the massive clusters NGC 2808 and Omega Centauri, along with multiple subgiant branches in NGC 1851 and NGC 6388 has challenged the long-held paradigm that globular clusters consist of simple stellar populations. This evolving picture has been further complicated by recent photometric studi…
Star formation and mass assembly in high redshift galaxies
Fiore, F.; Castellano, M.; Pentericci, L. +14 more
Aims: The goal of this work is to infer the star formation properties and the mass assembly process of high redshift (0.3 ≤ z < 2.5) galaxies from their IR emission using the 24 µm band of MIPS-Spitzer.
Methods: We used an updated version of the GOODS-MUSIC catalog, which has multiwavelength coverage from 0.3 to 24 µm and either…
Parallaxes and proper motions for 20 open clusters as based on the new Hipparcos catalogue
van Leeuwen, F.
Context: A new reduction of the astrometric data as produced by the Hipparcos mission has been published, claiming that the accuracies for nearly all stars brighter than magnitude Hp = 8 are improved, by up to a factor 4, compared to the original catalogue. As correlations between the underlying abscissa residuals have also been reduced by more th…
The XMM-Newton wide-field survey in the COSMOS field. The point-like X-ray source catalogue
Finoguenov, A.; Böhringer, H.; Salvato, M. +24 more
Context: The COSMOS survey is a multiwavelength survey aimed to study the evolution of galaxies, AGN and large scale structures. Within this survey XMM-COSMOS a powerful tool to detect AGN and galaxy clusters. The XMM-COSMOS is a deep X-ray survey over the full 2 deg2 of the COSMOS area. It consists of 55 XMM-Newton pointings for a tota…