An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 11 Search : warm
backwarming effect
  ا ُسکر ِ فروگرمی   
oskar-e forugarmi

Fr.: effet de rétro-réchauffement   

A sort of → greenhouse effect in → stellar atmospheres where the deeper layers heat up due to overlying → opacity. The presence of numerous → bound-bound opacities of → metals amplifies the → scattering of → photons, in particular their → backscattering, forcing the → temperature to increase in order to conserve the radiation flux and the transport of energy from the interior to the outer parts of the atmosphere.

back; → warming; → effect.

global warming
  گرمایش ِ جهانی   
garmâyeš-e jahâni

Fr.: réchauffement climatique   

An increase in the average → temperature of the Earth's → atmosphere that brings about climatic changes.

global; → warming.

lukewarm
  ولرم   
velarm (#)

Fr.: tiède   

Moderately warm; tepid.

M.E. lukewarme "tepid," from luke "tepid," of unknown origin, + → warm.

Velarm "lukewarm, tepid," of unknown origin.

meteoroid swarm
  غنگ ِ شخانه‌وار   
qang-e šaxânevâr

Fr.: essaim de météoroïdes   

A relatively dense collection of meteoroids at certain spots along some → meteoroid streams.

meteoroid; → swarm.

swarm
  غنگ   
qang

Fr.: essaim   

A great number of things especially in motion. → meteorite swarm.

ME; OE swearm; cf. O.S., M.L.G. swarm, Swed. svärm, M.Du. swerm, O.H.G. swarm, Ger. Schwarm "swarm;" O.N. svarmr "tumult."

Qang in Lârestâni "swarm of bees, flies, or the like," Lori qem (qem zaye) "swarm of bees, ants, and the like."

warm
  گرم   
garm (#)

Fr.: tiède   

Moderately hot.

M.E.; O.E. wearm (cf. O.S., O.Fris., M.Du., O.H.G., Ger. warm, O.N. varmr, Goth. warmjan "to warm"); cognate with Pers. garm, as below.

Garm "warm;" Mid.Pers. garm "warm;" O.Pers. garma-pada "name of the fourth month" (June-July); Av. garəma- "warm; heat;" cf. Skt. gharmá "heat;" Gk. therme, thermos; L. formus "warm;" E. warm, as above; PIE base *ghworm-/*ghwerm- "warm."

warm absorber
  درشمگر ِ گرم   
daršamgar-e garm

Fr.: absorbeur chaud   

A cloud of ionized gas within → active galactic nuclei (AGN) that causes absorption at → soft X-ray wavelengths. Warm absorbers were first suggested by Halpern (1984) to explain Einstein data of the quasar MR 2251-178. They are dubbed "warm" absorbers as they imply gas at temperatures of 104-105 K; the gas is → photoionized, not collisionally ionized. High resolution observations of warm absorbers have shown that they are outfowing. See also → cold absorber (Ceri Ellen Ashton, 2005, A Study of Warm Absorbers in Active Galactic Nuclei, Thesis, Mullard Space Science Laboratory Department of Space and Climate Physics University College London ).

warm; → absorber.

warm front
  پیشان ِ گرم   
pišân-e garm

Fr.: front chaud   

Meteo.: A leading edge that advances in a mass of air and replaces cooler air by warm air.

warm; → front.

warm intercloud medium
  مدیم ِ اندر-ابری ِ گرم   
madim-e andarabri-ye garm

Fr.: milieu internuage chaud   

A component of the → interstellar medium consisting of an extremely tenuous (density 0.1 to 10 cm-3) and relatively warm gas (temperature about 8,000 K) filling the space between denser neutral and ionized gas. Hydrogen is partly ionized, partly atomic and observed by the → 21-centimeter line in emission.

warm; → intercloud medium.

warm-hot intergalactic medium
  مدیم ِ اندر-کهکشانی ِ گرم-داغ   
madim-e andar-kahkašâni garm-dâq

Fr.: milieu intergalactique chaud   

The space containing a cluster of galaxies filled with a tenuous gas of temperature 105 to 107 K and density 10-6 to 10-4 cm-3. WHIM has been continuously shock-heated during the process of structure formation. It is so highly ionized that it can only absorb or emit far-ultraviolet and soft X-ray photons, primarily at spectral lines of highly ionized C, O, Ne, and Fe. WHIM is thought to be the main reservoir of missing baryons.

warm; → hot; → intergalactic medium.

warming
  گرمایش   
garmâyeš (#)

Fr.: réchauffement   

The process of becoming warmer; a rising temperature. → backwarming, → heating.

warm; → -ing.