An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 27 Search : count
proportional counter
  شمارگر ِ برپارشی   
šomârgar-e barpâreši

Fr.: compteur proportionnel   

A device in which an electronic detection system receives pulses that are proportional to the number of ions formed in a gas-filled tube by ionizing radiation.

proportional; → counter.

pulse counter
  شمارگر ِ تپ   
šomârgar-e tap

Fr.: compteur d'impulsion   

A device that records counts the total number of pulses received over a given time interval.

pulse; → counter.

radio counterpart
  همتای ِ رادیویی   
hamtâ-ye râdio-yi

Fr.: contrepartie radio   

The representation in → radio wavelengths of an astronomical object that has emission in other parts of the → electromagnetic spectrum.

radio; → counterpart.

scintillation counter
  سوسو شمار   
susu šomâr

Fr.: compteur à scintillation   

A device for detecting and measuring ionizing radiation by means of flashes produced when the radiation particles strike a sensitive layer of phosphor.

scintillation; → counter.

star count
  شمارش ِ ستاره، ~ ستارگان   
šomâreš-e setâré, ~ setâregân

Fr.: comptage d'étoiles   

The number of stars that appear in a given region of sky, usually counted on a photographic plate or CCD image.

star; → count.

strong encounter
  رویارویی ِ سترگ   
ruyâruyi-ye sotorg

Fr.: rencontre proche   

In a star cluster, a → close encounter that strongly changes a star's velocity.

strong; → encounter.

weak encounter
  رویارویی ِ نزار   
ruyâruyi-ye nezâr

Fr.: rencontre faible   

In a → star cluster, an → encounter that occurs at a distance and produces only very small changes in a star's velocity.

weak; → encounter.

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