Overview

To introduce students to the mathematical and physical basis that underlies modern stellar astrophysics. Students will build on their foundation of conceptual astronomy to gain a deeper understanding of key areas in stellar astrophysics. In particular the student will be introduced to the study of the physical basis underlying stars including stellar structure, radiation processes, star formation and evolution models, stellar evolutionary end-points (i.e. neutron stars and pulsars) and the physics of black holes.

Requisites

Prerequisites
AST10001 Discovering the Universe
PHY10001 Energy and Motion

AND

150 credit points

Assumed Knowledge

A foundation of conceptual astronomy

Teaching Periods
Location
Start and end dates
Last self-enrolment date
Census date
Last withdraw without fail date
Results released date
Semester 2
Location
Hawthorn
Start and end dates
29-July-2024
27-October-2024
Last self-enrolment date
11-August-2024
Census date
31-August-2024
Last withdraw without fail date
13-September-2024
Results released date
03-December-2024

Learning outcomes

Students who successfully complete this unit will be able to:

  • Describe the physical and mathematical basis of stellar structure
  • Demonstrate an understanding of stellar life cycles from birth to death
  • Communicate topics in modern astronomy research to a non-technical audience
  • Apply computational methods to analyse astrophysical data

Teaching methods

Hawthorn

Type Hours per week Number of weeks Total (number of hours)
On-campus
Lecture
2.00 12 weeks 24
On-campus
Class
1.00 12 weeks 12
On-campus
Lab
2.00 6 weeks 12
Online
Learning activities
1.00 12 weeks 12
Unspecified Activities
Independent Learning
7.50 12 weeks 90
TOTAL150

Assessment

Type Task Weighting ULO's
AssignmentIndividual 15 - 25% 1,2 
ExaminationIndividual 40 - 50% 1,2 
Laboratory ReportIndividual 10 - 20% 1,2,3,4 
Online QuizzesIndividual 5 - 15% 1,2 
Tutorial ExercisesGroup 5 - 10% 1,2,3 

Hurdle

As the minimum requirements of assessment to pass a unit and meet all ULOs to a minimum standard, an undergraduate student must have achieved:

(i) an aggregate mark of 50% or more, and(ii) at least 40% in the final exam.Students who do not successfully achieve hurdle requirement (ii) will receive a maximum of 45% as the total mark for the unit.

Content

  • Star formation – interstellar medium, protostars, pre-main-sequence evolution
  • Stellar atmospheres, stellar opacity, radiative transfer
  • Stellar interiors – hydrostatic equilibrium, energy transport
  • Physics of spectroscopy – absorption and emission lines
  • Stellar evolution – low and high-mass evolution
  • Variability – pulsation, helioseismology
  • Stellar remnants – white dwarfs, degenerate matter, neutron stars, pulsars
  • Black holes, introduction to the general theory of relativity
  • Spacetime, geodesics, metrics, event horizon, Hawking radiation

Study resources

Reading materials

A list of reading materials and/or required textbooks will be available in the Unit Outline on Canvas.