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- Houston Advanced Research CenterUS204 papers
- Texas A&M UniversityUS196 papers
- National and Kapodistrian University of AthensGR107 papers
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- Institute of Theoretical PhysicsCN78 papers
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- National Institute of Astrophysics, Optics and ElectronicsMX45 papers
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8 papers · 1 filter
Space-Time Foam may Violate the Principle of Equivalence
John Ellis, N. E. Mavromatos, D. V. Nanopoulos +1
The interactions of different particle species with the foamy space-time fluctuations expected in quantum gravity theories may not be universal, in which case different types of en…
On the 3D dynamics and morphology of inner rings
P. A. Patsis, Ch. Skokos, E. Athanassoula
We argue that inner rings in barred spiral galaxies are associated with specific 2D and 3D families of periodic orbits located just beyond the end of the bar. These are families lo…
Synchrotron Radiation and Quantum Gravity
John Ellis, N. E. Mavromatos, D. V. Nanopoulos +1
Photons may evade a synchrotron radiation constraint on quantum gravity by violating the equivalence principle.
WMAPing the Universe: Supersymmetry, Dark Matter, Dark Energy, Proton Decay and Collider Physics
A. B. Lahanas, N. E. Mavromatos, D. V. Nanopoulos
In this review we discuss constraints on minimal supersymmetric models of particle physics implied by the recent astrophysical observations of WMAP. Although the prospects of detec…
WMAPing out Supersymmetric Dark Matter and Phenomenology
A. B. Lahanas, D. V. Nanopoulos
The recent WMAP data provide a rather restricted range of the Cold Dark Matter (CDM) density of unprecedented accuracy. We combine these new data along with data fr…
2D MHD modelling of compressible and heated coronal loops obtained via nonlinear separation of variables and compared to TRACE and SoHO observations
G. J. D. Petrie, C. Gontikakis, H. Dara +2
An analytical MHD model of coronal loops with compressible flows and including heating is compared to observational data. The model is constructed via a systematic nonlinear separa…