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Hashem Hamedivafa

Assistant Professor

Update: 2025-01-15

Hashem Hamedivafa (Faculty Member)

Faculty of Basic Sciences /

Journal Paper

  1. "Abnormal Stokes V profiles observed by Hinode in a sunspot Detection of hidden photospheric fine-structures"
    Hashem Hamedivafa, Reza Rezaei
    ASTRONOMY and ASTROPHYSICS, Vol. 691, pp.274-285, 2024
  2. "Detecting a New Type of Stokes V Profiles Observed by Hinode in a Sunspot"
    Hashem Hamedivafa
    Iranian Journal of Astronomy and Astrophysic, Vol. 10, pp.139-152, 2023
  3. "The Role of Sunspots Magnetic Configuration in the Formation of Umbral Fine-Structures"
    Hashem Hamedivafa
    Iranian Journal of Astronomy and Astrophysic, Vol. 10, pp.111-120, 2023
  4. "Comparative Study of a Sunspot at Two Different Instances of Time"
    Hashem Hamedivafa
    SOLAR PHYSICS, Vol. 295, pp.1-4, 2020
  5. "A study on Ca II 854.2 nm emission in a sunspot umbra using a thin cloud model"
    Hashem Hamedivafa, Michal Sobotka, Luis Bellot Rubio, Sara Esteban Pozuelo
    Iranian Journal of Astronomy and Astrophysic, Vol. 3, pp.25-45, 2016
  6. "Structure of proper motions in a sunspot penumbra"
    Hashem Hamedivafa
    Iranian Journal of Astronomy and Astrophysic, Vol. 2, pp.39-57, 2015
  7. "Photospheric Stratification of a Central Umbral Dot Using Stokes Profiles Recorded by Hinode A Different Single-Case Study"
    Hashem Hamedivafa
    SOLAR PHYSICS, Vol. 286, pp.327-346, 2013
  8. "Kinematics of Umbral Dots Their Typical Area Brightness and Lifetime"
    Hashem Hamedivafa
    SOLAR PHYSICS, Vol. 270, pp.75-88, 2011
  9. "Application of an improved method of image segmentation and some consideration on identification and tracking of umbral dots"
    Hashem Hamedivafa
    SOLAR PHYSICS, Vol. 250, pp.17-29, 2008
  10. "Kinematics of Umbral Fine Structure"
    Michal Sobotka, K. G. Puschmann, Hashem Hamedivafa
    Central European Astrophysical Bulletin, Vol. 32, pp.125-132, 2008
  11. "The dependence of the magnetic field strength of a sunspot umbra on its intensity and brightness temperature"
    Hashem Hamedivafa
    Iranian Journal of Astronomy and Astrophysic, Vol. 4, pp.79-95, 2017

Conference Paper

  1. "Finding gamma ray events by the method of obtaining poisson distribution from data collected by an array of Cherenkov"
    Hashem Hamedivafa,
    31st International Cosmic Ray Conference (ICRC), 2009
  2. "Study on Extensive Air Showers with a small array of Water Cherenkov Detectors"
    Hashem Hamedivafa
    the 4th International Meeting on High Energy Gamma-Ray Astronomy (AIP Conference Proceedings), 2008
  3. "Surveying of Astronomy Education in Islamic Republic of Iran II. Bachelor's Degree in Astronomy and Astrophysics"
    Hashem Hamedivafa
    15th National Conference on Astronomy and Astrophysics of Iran, 2022
  4. "Mutual effects of penumbral microjets and the photosphere below"
    Hashem Hamedivafa, Reza Rezaei
    15th National Conference on Astronomy and Astrophysics of Iran, No 15 , pp.48-51, 2022
  5. "Morphology and Apparent Properties of Penumbral Microjets"
    Hashem Hamedivafa, Reza Rezaei
    15th National Conference on Astronomy and Astrophysics of Iran, No 15 , pp.78-81, 2022
  6. ""
    Hashem Hamedivafa, noshin jamshidi
    , No 6 , pp.57-60, 2013
  7. "Analysis of the 2-Color Photometry of Umbral Dots Using Hinode Data Area and Contrast"
    Hashem Hamedivafa,
    5th conference on Astronomy and Astrophysics, No 5 , pp.356-360, 2011
  8. ""
    Hashem Hamedivafa
    Annual Physics Conference of Iran, pp.1404-1407, 2011
  9. ""
    Hashem Hamedivafa, Maryam Rahmani
    Annual Physics Conference of Iran, pp.495-498, 2011
  10. "Magnetic and Thermal Structure of Penumbral Filaments Observed with HINODE Solar Optical Telescope"
    Nooshin Jamshidi, Zahra Ammar Loo, Hashem Hamedivafa
    15th meeting on research in astronomy, pp.150-153, 2011
  11. "Photospheric Stratification of a Sunspot Umbral Dot from Inversion of Stokes Profiles Recorded by HINODE"
    Hashem Hamedivafa
    15th meeting on research in astronomy, pp.306-309, 2011
  12. "The Thermal and Magnetic Structure of Peripheral Umbral Dots"
    Maryam Rahmani, Hashem Hamedivafa
    14 th Meeting on Research Astronomy, pp.40-43, 2010
  13. "Statistical Properties of Umbral Dots"
    Hashem Hamedivafa
    14 th Meeting on Research Astronomy, pp.29-32, 2010