Volume 6, Issue 2

 

ارسال های اخیر

  • Cherenkov Radiation in Uniaxial and Biaxial Anisotropic Media 

    Jafari, Marjan (Damghan University Astronomical Society of Iranدانشگاه دامغان, 2019-12-01)
    Cherenkov radiation is one of the problems in light- matter interaction that can be opened new ideas in quantum electrodynamic. A quantum mechanic approach is presented for Cherenkov radiation of a moving atom in uniaxial ...

  • Radio ground footprints of extensive air showers at the location of the SURA experiment 

    Sabouhi, Mohammad؛ Sabouhi, Mohammad؛ Rastegarzadeh, Gohar؛ Rastegarzadeh, Gohar (Damghan University Astronomical Society of Iranدانشگاه دامغان, 2019-12-01)
    Radio stations can record di erent values of the electric eld strength from an extensive air shower induced by a cosmic ray. It is possible to derive the ground footprint of a cosmic ray using the calculated electric eld ...

  • The Ground-Based Photometric Observation and Light Curve Analyses of Eclipsing Binary KIC 12418816 

    Mousavi-Sadr, Mahdiyar؛ Ebadi, Hossein (Damghan University Astronomical Society of Iranدانشگاه دامغان, 2019-12-01)
    Here, the photometric CCD observations in RIAAM observatory and light curve analyses of KIC 12418816 are presented. For comparison, the Kepler long cadence (LC) photometric data was studied. The analyses of the recorded ...

  • Obliquely propagating dust-ion acoustic solitary waves in magnetized plasmas with superthermal electrons 

    Nobahar, Davod؛ Pakzad, Hamid Reza (Damghan University Astronomical Society of Iranدانشگاه دامغان, 2019-12-01)
    In this paper, the problem of small amplitude dust-ion acoustic (DIA) solitary waves is discussed using the reductive perturbation theory in magnetized plasmas consisting of superthermal electrons, inertial ions, and ...

  • Zenith and azimuth angle dependence of extensive air shower thickness 

    Purmohammad, Davoud؛ Ataei, Muhiddin (Damghan University Astronomical Society of Iranدانشگاه دامغان, 2019-12-01)
    The arrival time distribution of simulated extensive air shower particles, for $10^{14}-10^{16}$ eV showers initiated by protons, for the observation level of the ALBORZ-I array in Tehran, has been investigated. We report ...

  • The Temperature and Mass Effects on Dust Grain Electrical Potential in Dusty Plasma 

    Motie, Iman؛ Taherimoghadam, masoud؛ Bakhshayeshi, Ali؛ Mirzaye, Taghi (Damghan University Astronomical Society of Iranدانشگاه دامغان, 2019-12-01)
    By orbit-limited motion (OLM) theory and the kinetic model, currents carried by electronsand ions on the dust grain are obtained and the effects of temperature and drift velocity of ions on thedust grain electrical potential ...