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Can CoGeNT and DAMA Modulations Be Due to Dark Matter?
CoGeNT DAMA Modulations Due Matter
2011/10/18
We explore the dark matter interpretation of the anomalies claimed by the DAMA and CoGeNT experiments, in conjunction with the various null direct-detection experiments. An independent analysis of the...
On the linear coupling between fast and slow MHD waves due to line-tying effects
Magnetohydrodynamics Waves Magnetic fields Sun atmosphere—Sun oscillations
2010/11/10
Context. Oscillations in coronal loops are usually interpreted in terms of uncoupled magnetohydrodynamic (MHD) waves. Examples of these waves are standing transverse motions, interpreted as the kink M...
Asymmetric Heating of the HR 4796A Dust Ring Due to Pericenter Glow
circumstellar matter planetary systems Stars individual HR 4796A, Infrared planetary systems
2010/11/11
We have obtained new resolved images of the well-studied HR 4796A dust ring at 18 and 25 μm with the 8-meter Gemini telescopes.These images confirm the previously observed spatial extent seen in mid-I...
Alpha effect due to buoyancy instability of a magnetic layer
magnetohydrodynamics Sun: magnetic fields Instabilities Turbulence Sun dynamo
2010/11/11
Context. A strong toroidal field can exist in form of a magnetic layer in the overshoot region below the solar convection zone. This motivates a more detailed study of the magnetic buoyancy instabilit...