- 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]
In response to COVID-19, ANU has changed the mode of delivery for all classes in Semester 1 2020 to remote delivery.
Semester 1 Class Summary information (available under the Classes tab) on this publication is as up to date as possible. Changes to Class Summaries not captured by this publication will be available via Wattle and students should have been advised by the offering College. Find out more information on the University's response to COVID-19 here.
The ANU uses Turnitin to enhance student citation and referencing techniques, and to assess assignment submissions as a component of the University's approach to managing Academic Integrity. While the use of Turnitin is not mandatory, the ANU highly recommends Turnitin is used by both teaching staff and students. For additional information regarding Turnitin please visit the ANU Online website.
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.
If you are a domestic graduate coursework or international student you will be required to pay tuition fees. Tuition fees are indexed annually. Further information for domestic and international students about tuition and other fees can be found at Fees.
- Student Contribution Band:
- Unit value:
- 6 units
If you are an undergraduate student and 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). You can find your student contribution amount for each course at Fees. Where there is a unit range displayed for this course, not all unit options below may be available.