Renewed optical and X-ray activity in IGR J00291+5934
We report a re-brightening of the millisecond X-ray pulsar IGR J00291+5934. In August the source performed an outburst which was detected in X-ray, UV and...
Replenishing the sparse data cubes from the hyperspectral imager Hyperscout-H of the Hera mission
On 26 September 2022, NASA's Double Asteroid Redirection Test (DART) mission impacted Dimorphos, the moonlet of near-earth asteroid (65803) Didymos, performing...
Report of the Terrestrial Bodies Science Working Group. Volume 7: The Galilean satellites
The formational and evolutionary history of natural satellites, their mineralogical composition and other phenomena of scientific interest are discussed. Key...
Report on the Tenerife Workshop on Uncertainties in Atomic Data and How They Propagate in Chemical Abundances
In 2010, we organised a workshop in Tenerife with the aim of bringing together scientists concerned with the completeness and accuracy of atomic data for...
Report on the Workshop "Dispersing Elements for Astronomy: New Trends and Possibilities"
Astronomical spectrographs play an important role in addressing some of the biggest challenges in modern astronomy. One of the most critical components of any...
Representation Theory of Finite Semigroups, Semigroup Radicals and Formal Language Theory
In this paper we characterize the congruence associated to the direct sum of all irreducible representations of a finite semigroup over an arbitrary field...