The Impact of Photo-ionization Feedback on Massive Star Formation

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• Nina Sartorio (University of St Andrews)
• Wednesday 08 May 2019, 13:15-13:45
• Sackler Lecture Theatre, IoA.

If you have a question about this talk, please contact Catrina Diener.

A fundamental unanswered question in star formation is how massive stars (of masses ~ 8 Msun or higher) acquire their mass. The onset of nuclear fusion in these stars occurs long before the star has reached its final mass. Therefore, accretion must somehow continue even after these stars are emitting copious amounts of ionizing UV radiation. In this talk we explore some of the challenges we face in massive star formation and analyse the effect of photo-ionization on accretion disks, as seen in recently preformed in high-resolution 3D radiation-hydrodynamics simulations; thereby verifying in which scenarios photo-ionizing feedback may lead to a dissolution of the disk and which scenarios it may allow accretion to continue

This talk is part of the Institute of Astronomy Seminars series.

This talk is included in these lists:

• Combined External Astrophysics Talks DAMTP
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• Institute of Astronomy Seminars
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology Talk Lists
• Priscilla
• Sackler Lecture Theatre, IoA

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