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Tuesday 15 April 2025, 11:00-12:00
Growing pains: the dining habits of stars, planets and black holes
- 👤 Speaker: Daniel Price, Monash University
- 📅 Date & Time: Tuesday 15 April 2025, 11:00 - 12:00
- 📍 Venue: The Hoyle Lecture Theatre + Zoom
Abstract
To make planets, stars and supermassive black holes, one must rapidly accrete material onto central objects. But the tiniest tangential motion combined with angular momentum conservation sends material into orbit, rather than accreting. Since work at the IoA in the 1970s we have understood that Nature solves the angular momentum problem by forming accretion discs, but the angular momentum transport mechanism remains unclear. The past 10 years have given us spectacular resolved observations of discs around both young and old stars, bringing fresh clues. In this talk I’ll explain how pairing 3D simulations with observations helps us solve the problem of accretion, revealing how stars and planets form, black holes grow and how accretion powers tidal disruption events.
Series This talk is part of the Institute of Astronomy Seminars series.
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