ADaptive Optics Near Infrared System (ADONIS)
Fr.: ADaptive Optics Near Infrared System (ADONIS)
An → adaptive optics instrument used on the → European Southern Observatory (ESO) 3.6-m telescope at La Silla. It was an upgraded version of COME-ON-PLUS, the → Very Large Telescope (VLT) adaptive optics prototype. It had 52 → actuators and performed corrections of the mirror 200 times per second. The reference → wavefront was sensed in the → visible. The observation was done in the → near-infrared (1-5 μm).
Fr.: décalage anormal vers le rouge
The high redshift of a quasar which is seemingly physically associated with a galaxy of low redshift.
Aromatic Infrared Band (AIB)
bând-e forusorx-e aromâtik
Fr.: bande infrarouge aromatique
A family of strong infrared emission bands at 3.3, 6.2, 7.7, 8.6, 11.3, and 12.7 μm which are widely observed in a large variety of objects, such as → H II regions, → reflection nebulae, → planetary nebulae, and the → diffuse interstellar medium of our galaxy and other galaxies. Solar system objects, such as carbonaceous → meteorites and → interplanetary dust particles are also known to display these features. They are suggested to be due to → polycyclic aromatic hydrocarbons.
Fr.: lumière rétrodiffusée
The light that has undergone → backscattering.
Having a bar like structure.
barred spiral galaxy
kahkašân-e mârpic-e miledâr
Fr.: galaxie spirale barrée
tasvir-e târ, ~ nâtig
Fr.: image estompée, ~ floue
cosmic infrared background (CIB)
paszamine-ye forusorx-e keyhâni
Fr.: le cosmique infrarouge
A diffuse radiation which consists of the cumulative infrared emission from all galaxies throughout cosmic history. It is about 50 times weaker than the → cosmic microwave background radiation (CMBR). Since the CIB is produced by the dust within such galaxies, it carries a wealth of information about the processes of star formation therein.
sorxkib-e keyhânšenâsik, ~ keyhânšenâxti
Fr.: décalage vers le rouge cosmologique, redshift ~
The → redshift of a remote object (galaxy, quasar, supenova) due to the expansion of the Universe.
1) arjé; 2) arjé dâdan
Fr.: 1) crédit; 2) créditer, faire crédit
1a) Commendation or honor given for some action, quality, etc.
M.E., from M.Fr. crédit "belief, trust," from It. credito, from L. creditum "a loan, thing entrusted to another," from p.p. of credere "to trust, entrust, believe."
Arjé, from arj "esteem, honor, dignity; price, worth, value," variant of arz "price, value," arzidan "to be worth;" Mid.Pers. arz- "to be worth;" Av. arj- "to be worth," arəjaiti "it is worth;" Proto-Ir. *Harj- "to be worth;" cf. Skt. arh- "to earn, be worth;" Gk. alphein "to earn, to obtain;" Lith. alga "salary, pay." "to be woth." Arjé dâdan with dâdan "to give, grant, yield," → datum.
Fr.: réduction de données
The process of converting crude observational data into usable information for scientific interpretation, by correcting, rearranging, ordering, and simplifying.
Fr.: magnitude dérougie
A magnitude which has been corrected for the interstellar reddening.
The process that de-reddens. The state of being de-reddened.
Verbal noun of → de-redden.
Fr.: rétention de charge
In a CCD detector, phenomenon caused by charge traps or potential pockets, which prevent electrons from being released to the adjacent pixel; eventually the electrons may be released in a subsequent cycle.
Differed, p.p. of differ, from O.Fr. différer, from L. differre "set apart, put off, delay," also "be different, differ," → differ; → charge.
Bâr→ charge; bâzdâšté "prevented," p.p. of bâzdâštan, from preventive suffix bâz- + dâštan "to hold, have, maintain," Mid.Pers. dâštan, O.Pers./Av. root dar- "to hold, keep back, maitain, keep in mind," Skt. dhar- "to hold, keep, preserve," dharma- "law," Gk. thronos "elevated seat, throne," L. firmus "firm, stable," Lith. daryti "to make," PIE *dher- "to hold, support."
An act of attacking or plundering.
Lacking → order.
→ disorder + -ed.
Fr.: dragage, remontée
From M.E. (Scots) dreg-, O.E. draeg- (in drægnet "dragnet"), akin to dragan "to draw" + up.
Birunkašid, past stem of birun kašidan, from birun "out, the outside" (Mid.Pers. bêron, from bê "outside, out, away" + rôn "side, direction," Av. ravan- "(course of a) river") + kašidan "to draw," Mid.Pers. kašitan, Av. karš- "to draw," Skt. kars-, kársati "to pull, drag, plough," Gk. pelo, pelomai "to be busy, to bustle."
Fr.: infrarouge extrême
A portion of the far infrared radiation, including wavelengths between 100 and 1,000 microns.
forusorx-e dur (#)
Fr.: infrarouge lointain
Infrared radiation in the wavelength range (25-40) to (200-350) microns emitted by cold molecular/dust clouds.