In this paper, a method is proposed to determine the basic properties of γ-ray loud blazars, among them the central black hole mass, M , the Doppler factor, δ, the propagation angle of the γ-rays with respect to the symmetric axis of a twotemperature accretion disk, Φ, and the distance (i.e. the height above the accretion disk), d at which the γ-rays are created, for seven γ-ray loud blazars wi...

Role of the particle-hole interaction in the four-particle-four-hole states in "0 is investigated· with relation to the alpha-cluster-like spatial correlations by using the vertically-truncated-subspace shell model which was proposed by Kamimura, Matsuse and one of the present authors (K.T.). It is ·concluded that the coupling between the two kinds of mode (spatially correlated four-particle mo...

We present a novel experimental approach which allows extraction of both spatial and temporal information on charge dynamics in organic solar cells. Using the wavelength dependence of the photonic structure in these devices, we monitor the change in spatial overlap between the photogenerated hole distribution and the optical probe profile as a function of time. In a model system we find evidenc...

We consider the fluid dual of (d + 2)-dimensional vacuum Einstein equation either with or without a cosmological constant. The background solutions admit black hole event horizons and the spatial sections of the horizons are conformally flat. Therefore, a ddimensional flat Euclidean space E is contained in the conformal class of the spatial section of the black hole horizon. A compressible, for...

The Fourier frequency dependent hard X-ray lag, first discovered from the analysis of aperiodic variability of the light curves of the black hole candidate Cygnus X-1, turns out to be a property shared by several other accreting compact sources. We show that the lag can be explained in terms of Comptonization process in coronae of hot electrons with inhomogeneous density distributions. The dens...

(Received) Exact diagonalizations of two dimensional small t–J clusters reveal dominant hole-hole correlations at distance √ 2 (ie between holes on next nearest neighbor sites). A new form of singlet d x 2 −y 2 pair operator is proposed to account for the spatial extention of the two hole-bound pair beyond nearest neighbor sites.

Relativistic X-ray emission lines from the inner accretion disk around black holes are reviewed. Recent observations with the Chandra X-ray Observatory, X-ray MultiMirror Mission-Newton, and Suzaku are revealing these lines to be good probes of strong gravitational effects. A number of important observational and theoretical developments are highlighted, including evidence of black hole spin an...

Quantities characterizing temporal property, e.g. power density, coherence, and time lag, can be defined and calculated directly in the time domain without using the Fourier transformation. Spectral hardness, variability duration, and correlation between different characteristic quantities on different time scale can be studied in the time domain as well. The temporal analysis technique in the ...

We present nine 3.6-cm VLBI observations of the optically violent variable (OVV) flat-spectrum radio quasar PKS 0420–014 taken over a period of three years (1989.32– 1992.48); we also show a VLBI map from observations at 43 GHz in 1992.4. We trace jet evolution and variability with individual components. We find superluminal motion with βapp ∼ 2–14c for five jet components. Components ejected m...