Yesterday, there was much talking about blue stragglers.
All preserved for posterity.
Francesco on Hubble observations of blue stragglers in galactic globulars - and VLT and GALEX too.
Barbara on more observations and modeling too.
Nathan on modeling and the mystery correlations in the amazing Nature paper too.
All with live high res video also.
This morning we move on to global properties of globulars and star formation processes.
Hm, globual is actually a potentially useful word, methinks.
More like this
we continue contemplation of stars going splat
there are blue stragglers in dwarf galaxies
they are presumably binaries merged through McCrea type I mass transfer
Blue straggler stars are, formally, main sequence stars that are too blue and bright on the colour-magnitude diagram - they are more massive than they ought to be given their age, is the other way of looking at it.
Need some more reading?
European Southern Observatory press release on globular cluster 47 Tucanae