The question whether or not massive stars can form in isolation or only in star clusters is of great importance for the theory of (massive) star formation as...

I take a critical look at the way in which electronic publishing has changed the world of publishing beyond recognition over the past decade. While the e...

We study the pitch angles of spiral arms and the frequency and dimensions of inner and outer rings as a function of disk parameters and the amplitude of non...

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In this brief note we remark that the four spatially resolved relativistic radio jets among the 14 dynamically confirmed black hole x-ray novae are all in...

It is very common in astrophysics that certain relevant parameters of the objects studied cannot be obtained directly from observations, but require numerical...

We report on our year-long (2009-'10) campaign with the Chandra X-ray observatory, to capture the transient X-ray binary (XRB) population in the nearby...

Phoenix spectra of C_2, CN and CO lines will provide oxygen isotopic abundance ratios (^16O/^17O/^18O) and CNO abundances for cool R Coronae Borealis (RCB)...

It is widely accepted that starbursts can dramatically affect their host galaxies via feedback-driven outflows, especially for gas-rich dwarfs with shallow...