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Neutron Stars II: Pulsar-Black Hole Binaries & Gamma-Ray Pulsars

Neutron Stars II: Pulsar-Black Hole Binaries & Gamma-Ray Pulsars. Geoff Bower. Binary Parameter Space. GM/a. GM/R. M. GM/a. Pulsar Binaries. Wex & Kopeikin 1997. Timing Results. Frame-dragging. BH Spin. GW. M_BH. Mtot. Wex & Kopeikin 1999. Determination of Masses.

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Neutron Stars II: Pulsar-Black Hole Binaries & Gamma-Ray Pulsars

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  1. Neutron Stars II:Pulsar-Black Hole Binaries&Gamma-Ray Pulsars Geoff Bower The Transient Universe: AY 250 Spring 2007

  2. Binary Parameter Space GM/a GM/R M GM/a The Transient Universe: AY 250 Spring 2007

  3. Pulsar Binaries Wex & Kopeikin 1997 The Transient Universe: AY 250 Spring 2007

  4. Timing Results Frame-dragging BH Spin GW M_BH Mtot Wex & Kopeikin 1999 The Transient Universe: AY 250 Spring 2007

  5. Determination of Masses Kramer et al 2005 The Transient Universe: AY 250 Spring 2007

  6. Spin/Quadrupole Kerr BH NS: C ~ 2 - 12 Boson star The Transient Universe: AY 250 Spring 2007

  7. Detecting Quadrupole Moment 30 M_sun 10^4 M_sun Effect ~ M^3 The Transient Universe: AY 250 Spring 2007

  8. The Transient Universe: AY 250 Spring 2007

  9. Imaging the Galactic Center What We See What We Want to See 7mm VLBA (Bower & Backer 1998) The Transient Universe: AY 250 Spring 2007

  10. 7 mm 700 x 400 micro arcsec The Transient Universe: AY 250 Spring 2007

  11. Scattering Inhibits Imaging Lo et al. 1998 The Transient Universe: AY 250 Spring 2007

  12. Scattering Inhibits Imaging Electron Density Fluctuations 100 pc 8000 pc The Transient Universe: AY 250 Spring 2007

  13. Pulse Broadening Cordes & Lazio 1997 The Transient Universe: AY 250 Spring 2007

  14. 5 sec 5 msec The Transient Universe: AY 250 Spring 2007

  15. SKA is Necessary for GC Pulsars Cordes et al 2004 The Transient Universe: AY 250 Spring 2007

  16. Gamma-ray Pulsars Crab Geminga The Transient Universe: AY 250 Spring 2007 Thompson et al 1977

  17. Improved Geminga Period Chandler et al 2001 The Transient Universe: AY 250 Spring 2007

  18. 271 sources 66 blazars 5 pulsars 170 unidentified Hartman et al 1999 The Transient Universe: AY 250 Spring 2007

  19. Padovani 2007 The Transient Universe: AY 250 Spring 2007

  20. EGRET Pulsar Population Crab G-ray pulsars Geminga Chandler et al 2001 The Transient Universe: AY 250 Spring 2007

  21. G-ray Pulsar Population • 5 objects • 4/5 are radio pulsars • Geminga is exception • Many unidentified galactic plane sources that are likely to be pulsars but are not radio pulsars • Broader G-ray pulse? • Magnetar pulsars? The Transient Universe: AY 250 Spring 2007

  22. GLAST Pulsar Detection The Transient Universe: AY 250 Spring 2007

  23. The Transient Universe: AY 250 Spring 2007

  24. The Transient Universe: AY 250 Spring 2007

  25. N_GLAST_pulsed ~ 140 • N_GLAST_detected ~ 750 • L ~ P^-1.8 * B^1.5 • McLaughlin & Cordes 2000 The Transient Universe: AY 250 Spring 2007

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