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: 2 Search : interstellar dust
interstellar dust
  غبار ِ اندر-اختری   
qobâr-e andaraxtari

Fr.: poussière interstellaire   

An aggregation of → dust grains in the space between stars. Interstellar dust absorbs, scatters, and polarizes the light from distant stars, causing the → interstellar extinction. Large dark regions in the plane of the Milky Way and other galaxies are caused by → intervening clouds of dust. The conclusive proof for the presence of a general and selective interstellar absorption is due to R. J. Trumpler (1930). See also → reddening; → very small grain; → big grain; → PAH.

interstellar; → dust.

interstellar dust grain
  دانه‌ی ِ غبار ِ اندر‌اختری   
dâne-ye qobâr-e andaraxtari

Fr.: grain de poussière interstellaire   

dust grain.

interstellar; → dust; → grain.