Publication: Blue Stragglers as Stellar Collision Products: The Angular Momentum Question

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Title	Blue Stragglers as Stellar Collision Products: The Angular Momentum Question
Authors/Editors*	Alison Sills, Tim Adams, Melvyn Davies
Where published*	Monthly Notices of the Royal Astronomical Society
How published*	Journal
Year*	2005
Volume	358
Number	-1
Pages	716-725
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Abstract	We investigate the structure and evolution of blue stragglers stars which were formed from direct stellar collisions between main sequence stars in globular clusters. In particular, we look at the rotational evolution of the products of off-axis collisions. As found in previous work, such blue stragglers initially have too high an angular momentum to contract down to the main--sequence. We consider angular momentum loss through either disc locking or locking to an outflowing wind and show that both methods allow the merged object to shed sufficient angular momentum to contract down to the main-sequence.