tidal dwarf galaxy (TDG) tagged posts

New Galaxy Sheds Light on How Stars Form

Image of galaxies
A tidal dwarf galaxy (blue) and a spiral galaxy (greyscale). The Milky Way is an example of a spiral galaxy. (Created from images taken by the Hubble Space Telescope and ALMA.)

A lot is known about galaxies. We know, for instance, that the stars within them are shaped from a blend of old star dust and molecules suspended in gas. What remains a mystery, however, is the process that leads to these simple elements being pulled together to form a new star.

But now an international team of scientists, including astrophysicists from the University of Bath in the UK and the National Astronomical Observatory (OAN) in Madrid, Spain have taken a significant step towards understanding how a galaxy’s gaseous content becomes organised into a new generation of stars.

Their findings have import...

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