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 : column
accretion column
  ستون ِ فربال   
sotun-e farbâl

Fr.: colonne d'accrétion   

The channel through which matter is accreted onto a body such as a → protostar, → white dwarf, → neutron star, or → black hole. The accreting body possesses magnetic fields strong enough to disrupt the → accretion flow and carry the material through column-shaped channels directly on to a small fraction of the stellar surface near the magnetic poles.

accretion; → column.

bad column
  ستون ِ بد   
sotun-e bad

Fr.: mauvaise colonne   

Column of a → CCD detector that does not correctly read out charge.

Bad, from M.E. badde, but the origin of the word is not clear; → column.

Sotun, → column; bad, from Mid.Pers. wad, maybe from Old Iranian *vata- "small;" cf. Scythian bata- "small, bad," Sogdian wtγy "suffer, sorrow."

column
  ستون   
sotun (#)

Fr.: colonne   

CCD detector: Series of pixels arranged under one another.

Column, from O.Fr. columpne, from L. columna "pillar," collateral form of columen "top, summit," from PIE *kel- "to project."

Sotun, from Mid.Pers. stun, from O.Pers. stênâ "column," Av. stuna-, Skt. sthuna- "column."

column density
  چگالی ِ ستون   
cagâli-ye sotun

Fr.: densité de colonne   

Density of the interstellar matter lying between an object and the Earth in a cylinder with a unity base.

column; → density.

Taylor column
  ستون ِ تیلر   
sotun-e Taylor

Fr.: colonne de Taylor   

A phenomenon in which the relative motion of a homogeneous rotating liquid tends to be the same in all planes perpendicular to the axis of rotation. When a rotating fluid comes into contact with a submerged object, the fluid flows around it as if it were a cylinder extending the entire depth of the fluid parallel to the axis of the system.

Taylor number; → column.