- Code ASTR4015
- Unit Value 6 units
- Offered by Research School of Astronomy and Astrophysics
- ANU College ANU Joint Colleges of Science
- Course subject Astronomy and Astrophysics
- Areas of interest Astronomy and Astrophysics, Science
- Academic career UGRD
- Mode of delivery In Person
- Co-taught Course
This course is usually offered every odd year (eg 2019)
The course is based on the theoretical development of the transfer of radiation through the atmospheres of stars, determining how the emergent spectrum may be used to determine the chemical composition of stars. Other aspects of stars related to their atmospheres are also examined; these include magnetic activity and stellar winds.
Upon successful completion, students will have the knowledge and skills to:
- Understand the physics and mathematics underpinning the radiative transfer equation
- Understand the significance of local thermodynamic equilibrium and non local thermodynamic equilibrium and the sources of opacity in stellar atmospheres.
- Understand the structure of stellar atmospheres and how this is determined through one-dimensional and three-dimensional solutions of the transfer equation.
- Understand the significance of the stellar parameters: the effective temperature, surface gravity and chemical abundance and how they are estimated.
- Be able to apply radiative transfer techniques to determine chemical abundances of stars in different environments such as the Galactic bulge and halo, the local group and the host stars of exo-planets.
- Understand the effects of magnetic fields and the formation of emission lines in the winds of hot stars.
- Assessments x 5 (100) [LO 1,2,3,4,5,6]
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The expected workload will consist of approximately 130 hours throughout the semester including:
- Face-to face component which may consist of 3 hours of lectures (1x2 hour lecture plus 1x1 hour lecture) and 1 x 1 hour tutorial per week
- Approximately 82 hours of self-study which will include preparation for lectures and other assessment tasks (average 6 hours per week of project work).
To be determined
Requisite and Incompatibility
Prescribed TextsStellar Atmospheres, Dimitri Mihalas, Freeman (2nd edition, 1978)
Assumed KnowledgeStudents should have completed PHYS2013 — Quantum Mechanics and PHYS2016 — Electromagnetism, or their equivalents.
Tuition fees are for the academic year indicated at the top of the page.
Commonwealth Support (CSP) Students
If you have been offered a Commonwealth supported place, your fees are set by the Australian Government for each course. At ANU 1 EFTSL is 48 units (normally 8 x 6-unit courses). More information about your student contribution amount for each course at Fees.
- Student Contribution Band:
- Unit value:
- 6 units
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