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A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of which permit absorption nebulae, the formation of molecules (most commonly molecular hydrogen, H 2), and the formation of H II regions.
Molecular cloud, interstellar clump or cloud that is opaque because of its internal dust grains. The form of such dark clouds is very irregular: they have no clearly defined outer boundaries and sometimes take on convoluted serpentine shapes because of turbulence. The largest molecular clouds are
The densest interstellar clouds are the molecular clouds. Molecular clouds are very dense by ISM standards, and very cold: only about 10º above absolute zero. The most common component of these clouds is molecular hydrogen (H2). Other molecules include carbon monoxide (CO) — which astronomers often use to trace molecular cloud structure ...
A molecular cloud is an interstellar cloud of gas and dust in which molecules can form, the most common of which is hydrogen (H 2). The Hubble Space Telescope has provided us with images of numerous young solar mass stars forming in giant molecular clouds such as the Eagle and Orion Nebulae.
As such, molecular clouds can be regarded as the fundamental building blocks defining how star formation proceeds in galaxies. This review explores some of the open questions listed above, combining both observational and theoretical perspectives.
Jan 5, 2022 · The magnetic field of a molecular cloud revealed. A combination of standard and new observational techniques has been used to detect the magnetic field of a molecular cloud — a region of...
Molecular Cloud. The Eagle Nebula is the most famous example of a molecular cloud. Credit: NASA, Hester and Scowen. Dust and gas primarily in the form of hydrogen molecules are the main constituents of the coldest, densest clouds in the interstellar medium.
