We present preliminary results of our HI WSRT observations of early-type galaxies in the ATLAS3D sample. We discuss the dependence of HI properties on environment. We detect HI in about half of the galaxies outside the Virgo cluster. The HI morphology/kinematics changes as a function of environment, going from regular, rotating systems around
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Early-type Galaxies in Isolation: an HI Perspective with ATLAS 3DSerra, P. et al.102010
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Echo Tomography of Sco X-1 using Bowen Fluorescence Lines
We present preliminary results of a simultaneous X-ray/optical campaign of the proto-typical LMXB Sco X-1 at 1-10 Hz time resolution. Lightcurves of the high excitation Bowen/HeII emission lines were obtained through narrow interference filters with ULTRACAM, and these were cross-correlated with X-ray lightcurves. We find evidence for correlated
Casares, J. et al.Fecha de publicación:
102005 -
EChO. Exoplanet characterisation observatory
A dedicated mission to investigate exoplanetary atmospheres represents a major milestone in our quest to understand our place in the universe by placing our Solar System in context and by addressing the suitability of planets for the presence of life. EChO—the Exoplanet Characterisation Observatory—is a mission concept specifically geared for this
Tinetti, G. et al.Fecha de publicación:
102012 -
Eclipsing binaries in the galactic globular cluster Omega Centauri
We present a photometric survey aimed at the identification of variable stars in the galactic globular cluster ω Cen. Our photometric catalogue is based on ~ 400 exposures of the central region of the cluster(Fov ~ 15' × 15') collected with the Danish Telescope. The catalogue has an accuracy of about ~ 0.02 mag at B ~ 18 mag. We present here
Calamida, A. et al.Fecha de publicación:
102005 -
Effect of coronal structure on loop oscillations
Aims.We investigate the influence of longitudinal structuring of the surrounding corona on the modes of oscillation of a coronal magnetic flux tube. Methods: .A partial differential equation is derived for the total pressure perturbation of the fast modes and it is solved analytically in terms of Bessel functions, obtaining a dispersion relation
Donnelly, G. R. et al.Fecha de publicación:
102006 -
Effect of mass loss on the driving of g-modes in B supergiant stars
MOST has detected p and g-modes in the B supergiant star HD163899. Saio et al. (2006) have explained the driving of g-modes in a post main sequence star by the presence of a convective shell which prevents some modes from entering the damping radiative core. We show that this scenario depends on the evolution of the star, with or without mass loss
Godart, Mélanie et al.Fecha de publicación:
102008