I review our knowledge about effective temperatures and masses of massive OB stars paying special attention to results recently obtained using new atmospheric...
Parameters of massive stars in the Milky Way and nearby galaxies
We present in this contribution a review of recent results of parameters of massive OB stars in the Milky Way, the Magellanic Clouds and nearby spirals. The...
Parasite light effects in International Ultraviolet Explorer (IUE) low resolution spectra
Procedures were developed for extracting low resolution spectra while correcting for halation effects and scattered light within the instrument. To correct for...
We report the first reliable measurement of the nebular [OI] 5577AA emission line in the Orion nebula. The use of diagnostic diagrams using the nebular [OI] and...
Participation to the PLATO Ground-Based Observation Programme
The ESA PLATO (PLAnetary Transits and Oscillations of stars) mission aims at the detection and characterisation (radii, mass, density, age) of terrestrial...
Particle accelerators in space: resolving them for the first time
The detection of optical counterparts of hot spots in radio galaxies has been a challenge in astrophysics since the 1960s. Being located at several 100 kpc away...