Exposing the Nature of Cosmic Liaisons

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Risa Wechsler has developed a new tool for measuring how galaxy interactions such as that which drew out the trail of stars in the Tadpole Galaxy (pictured here) affect the rate of star formation.
Risa Wechsler has developed a new tool for measuring how galaxy interactions, such as that which drew out the trail of stars in the Tadpole Galaxy (pictured here), affect the rate of star formation.

Risa Wechsler of the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) and her collaborators have devised a powerful technique to study how interactions between galaxies affect star formation. Their results shed light on the fundamental processes that drive galactic evolution.


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