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Power-law entropy corrected new holographic scalar field models of dark energy
Power-law holographic scalar field models dark energy PLECHDE model
2011/8/11
Abstract: In this work, the PLECHDE model with Granda-Oliveros infrared cutoff is studied and the evolution of dark energy density, deceleration and EoS parameters are calculated. I demonstrate that u...
Constraining Galactic Magnetic Field Models with Starlight Polarimetry
Constraining Galactic Magnetic Field Models Starlight
2011/10/8
This paper provides testable predictions about starlight polarizations to constrain the geometry of the Galactic magnetic field, in particular the nature of the poloidal component. Galactic dynamo sim...
Evolution of non-Gaussianity in multi-scalar field models
Infl ation Cosmological perturbation theory Physics of the early universe
2011/10/8
We study the evolution of non-Gaussianity in multiple-field inflationary models, focusing on three fundamental questions: (a) How is the sign and peak magnitude of the non-linearity parameter fNL rela...
Nonlinear force-free and potential field models of active-region and global coronal fields during the Whole Heliospheric Interval
Nonlinear force-free potential field models
2011/1/13
Between 2008/3/24 and 2008/4/2, the three active regions NOAA active regions 10987, 10988 and 10989 were observed daily by the Synoptic Optical Long-term Investigations of the Sun (SOLIS) Vector Spec...
Distinguishability of scalar field models of dark energy with time variable equation of state parameter
cosmology dark energy–scalar field cosmic microwave background
2010/11/16
The possibility of distinguishing of scalar field models of dark energy with different Lagrangians and time variable equation of state parameter by available observational data is analyzed. The mul-ti...
CRT: A numerical tool for propagating ultra-high energy cosmic rays through Galactic magnetic field models
Instrumentation and Methods for Astrophysics (astro-ph.IM)
2011/1/6
Deflection of ultra high energy cosmic rays (UHECRs) by the Galactic magnetic field (GMF) may be sufficiently strong to hinder identification of the UHECR source distribution. A common method for dete...