Brett Chizinski - Boston University Physics Department.

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Proposed Models for SgrA* • 1. Supermassive Black Hole • At least 10 5 M s • 2. Fermion Ball Model* • Condensation of heavy (~17 keV) , degenerated fermions • 3. Cluster of Dark Astrophysical Objects • Neutron stars or stellar black holes • 4. Ball of Bosons
How do we prove it’s a supermassive black hole? • Mass – for supermassive at least 10 5 M S • Size – Very Dense • Event Horizon – only way to prove 100%
Page 1 and 2: Sagittarius A*: Stellar Observation
Page 3: Views of the Galactic Center: Radio
Page 11 and 12: Professor Andrea Ghez • Professor
Page 14 and 15: Data Reduction: Speckle Inferometry
Page 16 and 17: Data Reduction: Adaptive Optics 27
Page 18 and 19: (Schodel et al.) 27 April 2006 SgrA
Page 20 and 21: Analysis: Ghez et al. • Velocitie
Page 22 and 23: 27 April 2006 SgrA*: Stellar Observ
Page 24 and 25: So…is it a black hole? • Mass--
Page 26 and 27: Conclusion • 3.7 x 10 6 M S objec
Page 28: Works Cited • Schodel, R et al.

Brett Chizinski - Boston University Physics Department.

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