Gamma-Ray Burst Central Engines - Princeton University
Gamma-Ray Burst Central Engines - Princeton University
Gamma-Ray Burst Central Engines - Princeton University
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Long-Duration GRBs:<br />
Summary<br />
• Black Holes and Proto-Magnetars both remain viable models<br />
• Magnetar model quantitatively explains (1) energy, (2) time<br />
scale, (3) mass-loading (Lorentz factor), (4) collimation<br />
• Renewed Challenge: Relate dE/dt, Γ, σ ⇒ γ-<strong>Ray</strong>s<br />
Short-Duration GRBs:<br />
• Swift Revolution: Afterglows and Host Galaxies<br />
• Merging Compact Objects Remains Promising Model<br />
– Accretion Disk Explodes at Late Times<br />
⇒ 100 second X-<strong>Ray</strong> Emission Remains a Major Problem<br />
• AIC: Promising Alternative Model
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