Institute of Astronomy

- Andrew Winter


Office: Obs O35
Office Tel: (01223) 337093
More Info (Internal)



My current research interests concern how star formation processes and young stellar environments influence planet formation. In general stars spend their first few million years in regions which are densely populated with other stars. This time corresponds to the period in which planets may be able to form from circumstellar material (called a protoplanetary disc) around such a star, and this motivates the question: how do neighbouring stars alter the planet formation process?

This question links the fields of star formation, cluster dynamics, and planet formation. The evidence suggests that in environments in which there is a massive star (10-100 times the mass of the Sun) protoplanetary discs, from which planets eventually form, are subject to strong ultraviolet flux. This drives photoevaporation of the disc, and shortens its lifetime. If this influence is significant enough then planet formation may be inhibited in such an environment. In what star formation environments are planets (and life) able to form?

Selected papers

First Author Publications:

Evidence of a past disc-disc encounter: HV and DO Tau - Winter, Andrew J.; Booth, Richard A.; Clarke, Cathie J.  - 10/18

Protoplanetary disc truncation mechanisms in stellar clusters: comparing external photoevaporation and tidal encounters - Winter, A. J.; Clarke, C. J.; Rosotti, G.; Ih, J.; Facchini, S.; Haworth, T. J. -  08/18

Protoplanetary disc response to distant tidal encounters in stellar clusters  -  Winter, A. J.; Clarke, C. J.; Rosotti, G.; Booth, R. A. - 04/18


Other Publications:

The FRIED grid of mass loss rates for externally irradiated protoplanetary discs - Haworth, Thomas J.; Clarke, Cathie J.; Rahman, Wahidur; Winter, Andrew J.; Facchini, Stefano




Page last updated: 6 September 2018 at 13:51