Hi all . . .
I'd like to add the link to the paper Robert may have in mind in his call for the Malin image,
Leroy et al 2014 re. dense gas clouds near the core of nearby NGC 253 which are feeding massive starbursts there. Robert told me about this one, just as I had downloaded a
brand-new paper issued just last month about the same thing happening our own MW galaxy. This subjects of the goings-on in galaxy cores may be a bit arcane for we eyepiece warmers who can't see all the excitement due to all the dust, but it is a Big Deal among those folk who are trying to understand how and why our Milky Way and its friends are doing things they never dreamed possible. NGC 253 is an ideal place to look because it is relatively nearby and behaves a lot like our own galaxy. If the first paper cited above is a bit dense and thick (12 authors, surprise, all want their place in the sun), another
paper published 10 years ago describes the same phenomenon using the equipment they had then. =Dana in SA