Restoration of the original synchrotron radiation formula

Restoration of original synchrotron radiation formul

The effect of bulk motion on the synchrotron radiation rate

Effect of bulk motion on synchrotron radiation rate for ensemble of relativistic particle

Landau Damping and Debye Shielding

Landau damping in collisionless plasma - Debye shielding of electrostatic plasma perturbatio

A logical contradiction from tachyons

Logical contradiction of existence of tachyons, particles that travel faster than speed of ligh

An improved model for cosmic ray propagation

Model for cosmic ray propagation with particle mirrorin

Universal cosmic rays and Harrison's inhomogeneity postulate

Harrison baryon inhomogeneity postulate of galactic evolution critically analyzed for universality of cosmic ray

The spectral shifts of an ensemble of relativistic emitters

Doppler shift toward red found for radiation from ensemble of relativistically moving emitte

Spectral shifts in quasi-stellar objects

Red and blue shift frequency distribution of quasi-stellar objects from nearby galaxie

The influence of the cosmological expansion on local systems

Following renewed interest, the problem of whether the cosmological expansion affects the dynamics of local systems is reconsidered. The cosmological correction to the equations of motion in the locally inertial Fermi normal frame (the relevant frame for astronomical observations) is computed. The evolution equations for the cosmological perturbation of the two--body problem are solved in this frame. The effect on the orbit is insignificant as are the effects on the galactic and galactic--cluster scales.Comment: To appear in the Astrophysical Journal, Late

Modeling ϵ\epsilon Eridani and asteroseismic tests of element diffusion

Taking into account the helium and metal diffusion, we explore the possible evolutionary status and perform seismic analysis of MOST target: the star $\epsilon$ Eridani. We adopt the different input parameters to construct the models by fitting the available observational constraints: e.g., $T_{eff}$, $L$, $R$, $[Fe/H]$. From computation, we obtain the average large spacings of $\epsilon$ Eridani about $194\pm 1 \mu$Hz. The age of the diffused models has been found to be about 1 Gyr, which is younger than one determined previously by models without diffusion. We found that the effect of pure helium diffusion on the internal structure of the young low-mass star is slight, but the metal diffusion influence is obvious. The metal diffusion leads the models to have much higher temperature in the radiation interior, correspondingly the higher sound speed in the interior of the model, thereby the larger frequency and spacings.Comment: 16 pages, 4 figures, accepted for publication in ChjA