The Science of Stars

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Joanna Byrne | January 24, 2019

Notre Dame Professor and Nuclear Physicist Umesh Garg spent last semester as a visiting faculty member at the London Global Gateway, and no one could accuse him of taking it easy. In three short months, Garg was invited to give ten talks on his research in five different countries, including Sweden, Italy, and Hungary. The traveling didn’t stop with Europe, he went to a conference in South Africa and even managed to fit an experiment in Japan into his schedule.

Garg is in high demand to give talks on his research, which looks at certain properties of the nucleus, particularly its compressibility.

“I look at how far you can squeeze a nucleus, and you could ask, why does anybody worry about squeezing the poor nucleus?” says Garg. "But it has to do with how a star ends its life."

Garg explains that it takes millions of years for a star to be born, or created, but it dies in a matter of seconds. During the star’s death, the compressibility of the nucleus is one of the parameters that decide whether it continues to collapse in on itself and become a black hole, or whether it explodes to become a supernova. Garg is an experimentalist, and found time as well to travel to Osaka University, Japan to participate in an experiment on investigating this property.

Garg is energetic in spreading the word about his research, and is enthusiastic about spending time in London. He has visited the London Global Gateway several times before, and being able to use it as a springboard to Europe is what draws him back time and time again.

“Academically, that’s why I’m attracted to London: it’s so central," says Garg.

Read more here.

 by Daily Domer Staff

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