Bulletin of the American Physical Society
2011 Annual Meeting of the Four Corners Section of the APS
Volume 56, Number 11
Friday–Saturday, October 21–22, 2011; Tuscon, Arizona
Session D4: Black Holes and Relativity |
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Chair: Alan Cooney, University of Arizona Room: UA Student Union Copper |
Friday, October 21, 2011 2:00PM - 2:12PM |
D4.00001: Relativistic Tsiolkovsky equation -- a case study in special relativity Jeremy Redd, Alexander Panin A possibility of using antimatter in future space propulsion systems is seriously discussed in scientific literature. Annihilation of matter and antimatter is not only the energy source of ultimate density 9x10$^{16}$ J/kg (provided that antimatter fuel is available on board or can be collected along the journey) but also potentially allows to reach ultimate exhaust speed -- speed of light c. Using relativistic rocket equation we discuss the feasibility of achieving relativistic velocities with annihilation powered photon engine, as well as the advantages and disadvantages of interstellar travel with relativistic and ultrarelativistic velocities. [Preview Abstract] |
Friday, October 21, 2011 2:12PM - 2:24PM |
D4.00002: Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum Tim Johannsen According to the no-hair theorem, black holes are uniquely characterized by their masses and spins. In this talk, I will discuss a new framework for testing the no-hair hypothesis. The approach is formulated in terms of a Kerr-like spacetime containing a quadrupole moment that is independent of both mass and spin. If the no-hair theorem is correct, then any deviation from the Kerr metric quadrupole has to be zero. I will show how VLBI imaging observations of Sgr A*, timing observations of quasi-periodic variability in galactic black hole binaries with upcoming missions, such as LOFT, as well as spectroscopic observations of fluorescent iron lines may lead to an astrophysical test of the no-hair theorem. [Preview Abstract] |
Friday, October 21, 2011 2:24PM - 2:36PM |
D4.00003: The mass, energy, space and time systemic theory- MEST- The new space-time equation Dayong Cao The space-time is produced by motion. The displacement and period of the orbit of the motion are the macro space-time; the probability of them of wave are the quantum space-time. In solar system, there is a mass-energy center which is a origin of a space-time coordinate system. There is a gravitational field of mass-energy around sun. The gravitational field can direct the orbit of space-time of motion.And there is a binding energy of the mass-energy center; in black hole system, there is a space-time center which is a origin of a mass-energy coordinate system. There is a ``gravitational field'' of space-time around black hole. And there is a binding energy of the space-time center. There is a balance energy equation between sun and black hole. Accroding to the quantum mechanics, \begin{equation} E'{\psi}=i{\hbar}\frac{\partial{\psi}}{{\partial}t} \end{equation} \begin{equation} m'{\psi}=-i{\hbar}\frac{{\partial}{\psi}{\partial}t} {{(\partial}x)^2} \end{equation} \begin{equation} h\nu+E'{\psi}=mc^2+m'{\psi}c'^2, (c'^2=-\frac{({\partial}x)^2}{({\partial}t)^2}) \end{equation} Among it, $E'\psi$: the energy of dark wave of black hole, $m'\psi$: the mass of dark wave, c$'$: the velocity of dark wave, ${\psi}$: the Wave Functions. [Preview Abstract] |
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