We report on a rapid fading of GX 339-4 to its lowest ever observed X-ray flux level. In response to the recent report of the start of an outburst of GX 339-4...
The rapid fading of V1647 Orionis: the sudden end of a FUor-type eruption?
The young eruptive star V1647 Ori started a rapid fading in October 2005 and now is only 1 mag above the pre-outburst level. Colour changes indicate that the...
The Rapid Growth of the Fingertips of Preplanetary Nebula CRL618
HST images taken over a time span of 11 years show that the tips of its bright optical fingers have proper motions exceeding 1". At the presumed distance of 0.9...
The rare decay $t o c gamma$ in the General 2HDM type III
We consider the branching ratio for the process $t o c gamma$ in the context of the General Two Higgs Doublet Model type III. We find that taking into account...
The asymptotic giant branch (AGB) is formed by low- and intermediate-mass stars (0.8 M_{⊙} M 8 M_{⊙}) in their last nuclear-burning phase, when they develop...
The European Solar Telescope (EST) will be equipped with a MCAO system to provide an excellent correction within one arcminute field of view (FOV). A prototype...
The real-time computing and instrument control software for CaNaPy
CaNaPy is an LGS-AO experimental facility of new generation, currently being assembled by the research institutes participating to the project (INAF, IAC and...
The recurrent impact of the Sagittarius dwarf on the Milky Way star formation history
The measurement of distances to individual stars with Gaia is enabling the construction of deep colour-magnitude diagrams (CMD) for large volumes within our...