2011
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The braking of T Tauri stars
A large sample of T Tauri stars exhibit optical jets and rotate slowly, only at a fraction of their breakup velocity. Stellar braking has long been thought...
A new universal photometric relation for normal galaxies
Galaxies exhibit a bimodal distribution in the optical colour-magnitude space with a narrow "red sequence" populated by mostly early-type galaxies and a...
Stellar mass loss: the recipe from giant stars
The seismology of red giants continues to astonish. Following directly the work presented last March on the age of red giants, it appears now that it is...
(21) Lutetia’s asteroid, remnant planetesimal from the Early Solar System
The asteroid (21) Lutetia is an old object, remnant of the primordial planetesimal from which all the planets of the Solar System were built. It has a highly...
The wake of planets around pulsars
The first extra-solar planets were detected around pulsars. These neutron stars in rapid rotation, with a period of the order of one millisecond to one...
The Galactic evolution of phosphorus
August 2011 — The chemical composition of the various stars in the Galaxy is an interesting tracer of its evolution. Up to now, phosphorous has remained...
Giant storm on Saturn
6 July 2011 — Saturn’s storms can produce lightning 10 000 times more intense than Earth’s ones. Convective storms larger than 2000 km have been observed...
Giant Saturn storm reveals deep winds
July 6, 2011 - Saturn’s giant storms, commonly called "Big white spots" are rare, only five equivalent events were recorded the last 130 years, they appear...
Strong chaos induced by Ceres and Vesta
15 July 2011 — Ceres and Vesta are the largest minor bodies that orbit between Mars and Jupiter. Until now, their motion was considered as relatively...
From Stock Markets to Cosmic Structures: the Stochastic Behavior of Dark Matter Halos
July 2011 — Predicting the cosmic mass distribution of dark matter halos is a central problem in modern cosmology since its knowledge is key to understanding...