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Magnetic Trapping of Neutral Particles: A Study of a Physically Realistic Model
S. Gov, S. Shtrikman, H. Thomas
We study, both classically and quantum-mechanically, the problem of a neutral particle with spin S, mass m and magnetic moment mue, moving in two-dimensions in an inhomogeneous mag…
Dynamical Response of Correlated Electrons in Solids Probed by Inelastic Scattering Experiments: An Ab Initio Theoretical Perspective
Adolfo G. Eguiluz, Wei Ku, James M. Sullivan
We present results of ab initio theoretical investigations of the excitation spectra of correlated electrons in metals (Al, K, and Li) and their interplay with inelastic scattering…
Progressive Covering of the Accretion Disk Corona during Dipping in the LMXB XB 1916-053
R. Morley, M. J. Church, A. P. Smale +1
Results are reported for analysis of the extensive Rosat observation of the dipping low mass X-ray binary XB 1916-053. Dipping is 100% deep showing that the emission regions are co…
RXTE Observations of Cygnus X-1: Broad-Band Spectra and High-Resolution Timing
K. Pottschmidt, J. Wilms, M. A. Nowak +3
We present results from a 20 ksec RXTE observation of the black hole candidate Cyg X-1. We apply self-consistent accretion disk corona models to these hard state data and show that…
RXTE Observations of LMC X-1 and LMC X-3
J. Wilms, M. A. Nowak, J. B. Dove +4
Of all known persistent stellar-mass black hole candidates, only LMC X-1 and LMC X-3 consistently show spectra that are dominated by a soft, thermal component. We present results f…
Discovery of an X-ray selected radio-loud obscured AGN at z=1.246
X. Barcons, R. Carballo, M. T. Ceballos +2
We have discovered an obscured active galaxy at redshift z = 1.246 identified with the ROSAT X-ray source RX J1011.2+5545. We report on multiwavelength observations of this source…
1D Toy Model For Trapping Neutral Particles
S. Gov, S. Shtrikman, H. Thomas
We study, both classically and quantum-mechanically, the problem of a neutral particle with spin, moving in one-dimension in an inhomogeneous magnetic field. This problem serves fo…
Ab Initio Evaluation of Plasmon Lifetimes in the Alkali Metals
Wei Ku, Adolfo G. Eguiluz
The anomalous plasmon linewidth dispersion (PLD) measured in K by vom Felde, Sprosser-Prou, and Fink (Phys. Rev. B 40, 10181 (1989)), has been attributed to strong dynamical electr…
Progressive covering in dipping and Comptonization in the spectrum of XB1916-053 from the BeppoSAX observation
M. J. Church, A. N. Parmar, M. Balucinska-Church +3
We report results of a BeppoSAX observation of the low-mass X-ray binary (LMXB) dipping source XB 1916-053. The source joins the small group of LMXB detected at energies ~100 keV.…
Progressive Covering of the ADC during Dipping in the LMXB XBT 0748-676
M. J. Church, M. Balucinska-Church, T. Dotani +1
We report results of analysis of the ASCA observation of 1993, May 7th of the dipping LMXB source XBT 0748-676, and propose a new explanation of the spectral evolution in dipping i…
Gas and Dust Emission from the Nuclear Region of the Circinus Galaxy
M. Contini, M. A. Prieto, S. M. Viegas
Simultaneous modeling of the line and continuum emission from the nuclear region of the Circinus galaxy is presented. Composite models which include the combined effect of shocks a…
The Observational Status of Stephan's Quintet
Mariano Moles, Isabel Marquez, Jack W. Sulentic
We present new photometric and spectroscopic data for the galaxies in the compact group known as Stephan's Quintet. We find the strongest evidence for dynamical perturbation in the…