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: 5 Search : component
blueshifted component
  همنه‌ی ِ آبی-کیب   
hamneye âbikib

Fr.: composante décalée vers le bleu   

A constituent of a composite astronomical object which has a motion directed towards the observer, as revealed by its spectrum.

blueshift; → component.

component
  همنه   
hamneh (#)

Fr.: composante   

A constituent part; an individual part of an organized whole.
One of two or more vectors having a sum equal to a given vector.

L. componentem, pr.p. of componere "to put together," → compose.

Hamneh from ham- "together," → com- + neh present tense stem of nehâdan "to put, place," → compose.

discrete absorption component (DAC)
  همنه‌ی ِ درشمی ِ گسسته   
hamne-ye daršami-ye gosasté

Fr.: composante d'absorption discrète   

The rapid, systematic changes in the absorption parts of the → P Cygni profiles of the ultraviolet → resonance lines (Si IV, C IV, and N V) observed in a majority of massive → hot stars. DACs are typically seen to accelerate to the → blue wing of the profile over a few days, becoming narrower as they approach the → terminal velocity.

discrete; → absorption; → component.

optical component
  همنه‌ی ِ نوریک   
hamne-ye nurik

Fr.: composante optique   

Any device such as a → lens, → prism, → mirror, and/or other similar objects used in an → optical system.

optical; → component.

passive component
  همنه‌ی ِ اکار   
hamne-y akâr

Fr.: composante passive   

An electronic component which contains no source of power, in contrast to active components.

passive; → component.