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14 papers · 1 filter
Spectral Line Variability in the Circumstellar Environment of the Classic al T Tauri Star SU Aurigae
J. M. Oliveira, B. H. Foing, Y. C. Unruh
SU Aurigae is a classical T Tauri star of spectral type G2. This star was one of the scientific targets of the MUSICOS 96 multi-site campaign that provided a wealth of high resolut…
Dilatonic String through black holes
Caroline Santos
We study the gravi-dilaton field of a Schwarzschild black hole pierced by a thin cosmic string in both massless and massive dilatonic gravity. We conclude that in the thin vortex a…
A Serendipitous Galaxy Cluster Survey with XMM: Expected Catalogue Properties and Scientific Applications
A. Kathy Romer, Pedro T. P. Viana, Andrew R. Liddle +1
This paper describes a serendipitous galaxy cluster survey that we plan to conduct with the XMM X-ray satellite. We have modeled the expected properties of such a survey for three…
One-Particle Spectral Properties of 1D Mott-Hubbard Insulators
J. M. P. Carmelo, J. M. E. Guerra, J. M. B. Lopes dos Santos +1
We use an exact {\it holon} and {\it spinon} Landau-liquid functional which describes the holon - spinon interactions at all scattering orders, to study correlation functions of in…
Evolution of a sandpile in a thick flow regime
S. N. Dorogovtsev, J. F. F. Mendes
We solve a one-dimensional sandpile problem analytically in a thick flow regime when the pile evolution may be described by a set of linear equations. We demonstrate that, if an in…
Exactly solvable analogy of small-world networks
S. N. Dorogovtsev, J. F. F. Mendes
We present an exact description of a crossover between two different regimes of simple analogies of small-world networks. Each of the sites chosen with a probability from s…