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The role of thermal Physics in determining the masses of stars

The role of thermal Physics in determining the masses of stars

Objective

The evolution of a star forming molecular cloud depends critically on the thermodynamic processes, which determine the temperature, and hence the pressure, of the gas, i.e. heating, cooling, chemistry and radiation transport. These processes play a key role in determining the overall efficiency of star formation, the stellar initial mass function, the patterns of clustering, the binary statistics, the masses and lifetimes of accretion discs, and the external appearance of star forming clouds.

The aim of this proposal is to explore the influence of thermodynamic processes on star formation by developing state-of-the-art algorithms to model them, and then combining these algorithms with high-resolution numerical simulations of star formation, using initial and boundary conditions informed by the latest observations. This in turn will allow us to determine how star formation depends on environmental factors like epoch, metallicity, background radiation field, level of turbulence, and feedback.

This has implications beyond contemporary, local star formation, since observers are now able to observe star formation in more extreme environments like starbursts, and high-redshift merging proto-galaxies, and it is important to know and explain what systematic differences there may be between the patterns of star formation in these different environments.

Coordinator

CARDIFF UNIVERSITY

Address

30-36 Newport Road
Cardiff

United Kingdom

Administrative Contact

Anthony Peter WHITWORTH (Prof.)

Project information

Grant agreement ID: 39569

  • Start date

    8 January 2008

  • End date

    7 January 2010

Funded under:

FP6-MOBILITY

Coordinated by:

CARDIFF UNIVERSITY

United Kingdom