General: (v.tr.) To reduce the volume of, to make more concise. (v.intr.)
To become more compact, to undergo condensation.
Cagâlidan from cagâl "dense, thick," of unknown etymology, + -idan infinitive suffix.
Relating to or produced by → condensation.
Adj. from → condense.
mâdeh-ye cagâlidé (#)
Fr.: matière condensée
Matter in the liquid or solid state.
Having relatively high → density.
From L. densus "thick, crowded," cognate with Gk. dasys "hairy, bushy, thick grown."
Cagâl "dense, thick," related to ceqer "stiff, hard, tough, firm" (dialectal Kermâni ceqel, Šândizi caqal), caqâlé "stiff, unripe fruit."
Fr.: coeur dense
An opaque region of a → molecular cloud (AV 10 mag) which is considered to be the progenitor of → star formation. Dense cores have temperatures of about 10 K and masses of roughly 1 to 10Msun each and in which the → molecular hydrogen density is roughly 104-105 cm-3 and size 0.1 pc. The → self-gravity of a dense core plays a central part in star formation. See also → hot molecular core.
dense core mass function
karyâ-ye jerm-e maqze-ye cagâl
Fr.: fonction de masse des cœurs denses
dense molecular cloud
abr-e molekuli-ye cagâl
Fr.: nuage moléculaire dense
A type of → interstellar medium cloud in which → carbon (C) becomes almost completely molecular due to relatively high → extinction. The chemistry is qualitatively different from that of → diffuse molecular clouds, as the → electron abundance is very low (→ cosmic-ray ionization being the dominant source) and the reactive C is replaced by the very stable → carbon monoxide (CO). This regime is found only in → sightlines with AV > 5-10 mag; not all such sightlines will contain dense cloud material and if dense cloud material is present it is likely to be surrounded by → translucent material. These clouds are typically → self-gravitating, and are most often observed by → infrared absorption and → millimeter wave emission methods. Their densities are typically at least 104 cm-3, and their → kinetic temperatures are typically on the order of 10-50 K in the quiescent regions. Most of the more than 140 currently known → interstellar molecules were found through observations of → microwave→ rotational transitions in such clouds, starting with the discovery of OH, followed by a host of other new detections such as CO, NH3, H2O, and H2CO (Snow & McCall, 2006, ARA&A 44, 367).
Fr.: matière surdense
Matter whose density exceeds a reference level.