a study of dnos and qpos in cataclysmic variable stars hannes breytenbach ♋, brian warner, patrick...
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A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until .
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . .
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . . .
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . . . gas phase change
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . . . gas phase change
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . . . gas phase change T, μ
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . . . gas phase change μ
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . . . gas phase change μ
“Cataclysmic”
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Ṁ2 < Ṁ1 ρ until . . . gas phase change μ
“Cataclysmic”
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Seen in optical through X-ray
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Seen in optical through X-ray• PDNO ∼ 5 - 40 s
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Seen in optical through X-ray• PDNO ∼ 5 - 40 s• 103 |Ṗ≲ DNO|-1 10≲ 7
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
• Seen in optical through X-ray• PDNO ∼ 5 - 40 s• 103 |Ṗ≲ DNO|-1 10≲ 7
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
• Seen in optical through X-ray
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
• Seen in optical through X-ray• PDNO ∼ 30 - 600 s
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
• Seen in optical through X-ray• PDNO ∼ 30 - 600 s• 5 |Ṗ≲ DNO|-1 20 ≲
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
FT
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
FT
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
FT
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
Dwarf Nova OscillationsDNOs?
Variability
QPOs? Quasi-Periodic Oscillations
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
?
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
?
“Judge a man by his questions rather than by his answers.” - Pierre-Marc-Gaston, duc de Lévis (1764-1830) Maximes et réflexions sur différents sujets de morale et de politique (Paris, 1808)
A study of DNOs and QPOs in Cataclysmic Variable starsHannes Breytenbach♋, Brian Warner, Patrick Woudt
University of Cape Town
♋ author email: [email protected]
SKA Postgraduate Bursary Conference 2011
CVs? • Binary• WD primary + MS secondary
Overfilling Roche Lobe
Mass Transfer
• Accretion disc
DNOs?
Variability
QPOs?
?Thank you!
“Judge a man by his questions rather than by his answers.” - Pierre-Marc-Gaston, duc de Lévis (1764-1830) Maximes et réflexions sur différents sujets de morale et de politique (Paris, 1808)