Verbal noun of → interpret.
Fr.: couper, croiser; intersecter
To cut or divide by passing through or across: a comet intersecting Earth's orbit.
From L. intersectus, p.p. of intersecarer, from → inter- + secare "to cut."
Andarboridan, from andar-, → inter-, + boridan
"to cut," from Mid.Pers. britan, brinitan "to cut off;"
Av. brāy-, present tense brin-, only with suffix pairi-,
"to cut off;" cf. Skt. bhri- "to hurt, injure," bhrinanti "they hurt."
The act, process, or result of intersecting.
Verbal noun of → intersect.
Referring to the medium or objects lying in the space between stars in our Galaxy or outer galaxies.
Fr.: absorption interstellaire
The absorption of light from stars and other objects by intervening gas and dust in interstellar space.
tangol-e andaraxtari, hobâb-e ~
Fr.: bulle interstellaire
A huge structure of ionized gas blown into the interstellar medium by the winds of supernovae and massive stars. → Local Bubble.
Fr.: nuage interstellaire
An aggregation of gas and dust in the → interstellar medium containing large quantities of atoms, molecules, and dust. There are several types of interstellar clouds, such as → diffuse interstellar clouds, → dark clouds, → molecular clouds.
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 grain
dâne-ye qobâr-e andaraxtari
Fr.: grain de poussière interstellaire
→ dust grain.
Fr.: extinction interstellaire
The dimming of light traveling in the interstellar space due to the combined effects of absorption and scattering by interstellar dust particles. Interstellar extinction increases at shorter (bluer) wavelengths, resulting in → interstellar reddening.
Fr.: gaz interstellaire
Gas, mostly hydrogen, in the interstellar space found in a variety of forms: molecular, atomic, ionized, plasma.
Fr.: grain interstellaire
Fr.: raie interstellaire
A spectral line formed in the interstellar medium, in particular an absorption line which does not participate in the periodic Doppler shift of intrinsic absorption lines in a binary star.
interstellar magnetic field
meydân-e meqnâtisi-ye andaraxtari
Fr.: champ magnétique interstellaire
A large-scale, weak magnetic field, with an estimated strength of about 1 to 5 microgauss, that pervades the disk of the Milky Way Galaxy and controls the alignment of interstellar dust grains.
Fr.: maser interstellaire
A maser phenomenon created by young stars and → protostars in the surrounding dense → molecular clouds of gas and dust. See also → circumstellar maser; → ammonia maser; → methanol maser; → OH maser; → water maser.
Fr.: matière interstellaire
The gas and dust that exists in open space between the stars. See also → interstellar medium.
interstellar medium (ISM)
Fr.: milieu interstellaire
The environment containing the → interstellar matter, consisting of gas (mostly hydrogen) and dust. Even at its densest phase, the interstellar medium is emptier than the best vacuum man can create in the laboratory, but because space is so vast, the interstellar medium still adds up to a huge amount of mass.
Fr.: molécule interstellaire
Any molecule that occurs naturally in clouds of gas and dust in the interstellar medium. So far more than 140 species have been discovered, many of which nonexistent on Earth.
Fr.: polarisation interstellaire
interstellar radiation field
meydân-e tâbeš andaraxtari
Fr.: champ de rayonnement interstellaire
A global ionizing radiation in the → interstellar medium provided by various sources all together.