765669S

Astrophysics of Interacting Binary Stars

an advanced course (7 credits)

at the Astronomy Division, University of Oulu

The course period September 29 – December 2, 2014

Lectures, and exercise and practical sessions (about 20 all together) take place on Monday at 10-12 and Tuesday at 14-16 in TÄ 219

The course is lectured in English

Teacher: Vitaly Neustroev, FY 272, ph. 029 448 1930, vitaly.neustroev [at] oulu.fi



Course content:

The course will provide the necessary understanding of the physics of binary stars with black holes,
neutron stars and white dwarfs, mass-transfer, chemistry and the importance of binary stars and populations
of binaries to modern astrophysics.

Theoretical and practical considerations will be supplemented with the home exercises which constitute the important part of the course.

Literature:

  • Interacting Binary Stars (1985) – Edited by J.E. Pringle and R.A. Wade / CUP. ISBN 0 521 26608 4.
  • Cataclysmic Variable Stars (2003) – Brian Warner / CUP. ISBN 0 521 54209 X.
  • Accretion Power in Astrophysics (3rd edition, 2003) – J. Frank, A. King and D. Raine / CUP. ISBN 0 521 62957 8.
  • Cataclysmic Variable Stars – How and Why They Vary (2001) – Coel Hellier / Springer Science & Business Media. ISBN 1852332115.
  • I will also give references to original papers where useful.

Schedule

  • Lecture 1: September 29: Introduction: Binary Stars and Fundamental Stellar Parameters

    PDF

  • Lecture 2: September 30: How does mass transfer occur? Roche lobe and Roche-Lobe overflow.

    PDF

  • Lecture 3: October 6: Accretion Disks. Formation of an Accretion Disk, Tidal limitations, Boundary layer, Bright spot, Stream-Disk overflow.

    PDF * Movie * Link to FITDisk

  • Lecture 4: October 7: Energetics of accretion. Accretion disk properties. The angular momentum problem. Viscous accretion disks.

    PDF * HomeWork 1

  • Lecture 5: October 13: Existence of Accretion Disks in Close Binary Systems. Cataclysmic Variables (CVs). Classification of CVs.

    PDF

  • Lecture 6: October 14: CVs: Distribution of Orbital Periods. Observational evidence for accretion disks in CVs. Light curves of eclipsing CVs. Eclipse analysis. Eclipse Mapping.

    PDF * HomeWork 2

  • Lecture 7: November 5: Spectroscopy: Emission line profiles. Trailed spectra. Doppler Tomography. Emission lines from winds.

    PDF * Paper 1 * Paper 2 * Paper 3 * Paper 4

  • Lecture 8: November 17: Dwarf Nova Outbursts. Thermal limit cycle instability. Superoutbursts and Superhumps.

    PDF * Paper 5 * Paper 6 * Movie 1 * Movie 2 * Movie 3 * Movie 4

  • Lecture 9: November 18: Nova-like Variables. Magnetically-Controlled Accretion.

    PDF * Movie 5

  • Lecture 10: December 1: The Evolution of Cataclysmic Variables.

    PDF

  • Lecture 11: December 2: AM CVn Binaries.

    PDF

  • Lecture 12: December 8: X-ray Binaries. The Eddington Luminosity.

    PDF

  • Lecture 13: December 9: Bondi-Hoyle wind accretion.

    PDF

  • The final exam will be held on Monday, December 15, 2014, at 10.15, in TÄ 219. Questions for the exam: [PDF]