As long as the yellow hypergiant HR8752 has been observed spectroscopically it has shown erratic and significant fluctuations in its effective temperature. But...
Wind Accretion and State Transitions in the Black Hole Binary Cyg X-1
The black hole binary, Cyg X-1, is generally observed in one of two long duration X-ray states: a low flux, hard spectrum state (most common) and a high flux...
For the large population of massive stars lying behind dust, among which are the youngests and potentially the most massive of our Galaxy, none of the commonly...
Wind Evaluation Breadboard electronics and software
WEB, the Wind Evaluation Breadboard, is an Extremely Large Telescope Primary Mirror simulator, developed with the aim of quantifying the ability of a segmented...
Wind Evaluation Breadboard: mechanical design and analysis, control architecture, dynamic model, and performance simulation
The Wind Evaluation Breadboard (WEB) for the European Extremely Large Telescope (ELT) is a primary mirror and telescope simulator formed by seven segments...
Telescope enclosures are used to limit the disturbance caused by the wind on the pointing and tracking performances of telescopes and to preserve primary mirror...
Here we present a self-consistent stationary solution for spherically symmetric winds driven by massive star clusters under the impact of radiative cooling. We...
A large fraction of all stars, after experiencing heavy winds at the end of the Asymptotic Giant Branch (AGB) phase, leave behind a core that is below the...
Winds of metal-poor OB stars: Updates from HST-COS UV spectroscopy
In the race to break the SMC frontier and reach metallicity conditions closer to the First Stars the information from UV spectroscopy is usually overlooked. New...