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Submillimetre studies of prestellar ...

Pattle, Katherine Miranda.

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Submillimetre studies of prestellar and starless cores in the Ophiuchus, Taurus and Cepheus molecular clouds

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Submillimetre studies of prestellar and starless cores in the Ophiuchus, Taurus and Cepheus molecular clouds/ by Katherine Miranda Pattle.
作者:	Pattle, Katherine Miranda.
出版者:	Cham :Springer International Publishing : : 2017.,
面頁冊數:	xvi, 254 p. :ill. (some col.), digital ;24 cm.
內容註:	Introduction -- Instrumentation -- The Ophiuchus Molecular Cloud -- The Taurus Molecular Cloud -- The Cepheus Flare -- Discussion -- Summary and Future Work.
Contained By:	Springer eBooks
標題:	Molecular clouds. -
電子資源:	http://dx.doi.org/10.1007/978-3-319-56520-0
ISBN:	9783319565200

Submillimetre studies of prestellar and starless cores in the Ophiuchus, Taurus and Cepheus molecular clouds
Pattle, Katherine Miranda.

Submillimetre studies of prestellar and starless cores in the Ophiuchus, Taurus and Cepheus molecular clouds[electronic resource] /by Katherine Miranda Pattle. - Cham :Springer International Publishing :2017. - xvi, 254 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Instrumentation -- The Ophiuchus Molecular Cloud -- The Taurus Molecular Cloud -- The Cepheus Flare -- Discussion -- Summary and Future Work.

This thesis presents studies of the starless core populations of three nearby molecular clouds made as part of the James Clerk Maxwell Telescope Gould Belt Survey. These studies combine observations made using the SCUBA-2 submillimetre camera with data from several other instruments, including the Herschel Space Observatory, to identify and characterise starless cores in the Ophiuchus, Taurus and Cepheus molecular clouds. The temperatures, masses and stability against collapse of the starless cores are measured, the latter through detailed virial analysis, including a determination of the external pressure on the cores. The book illustrates core stability on the "virial plane", in which core stability is plotted against core confinement mode, showing that starless cores are typically confined by external pressure rather than self-gravity. It also presents an analytical model of the evolution of starless cores in the "virial plane", demonstrating that a pressure-confined starless core may evolve due to virial stability rather than gravitational collapse, which means that a core can only be definitively considered to be prestellar if it is gravitationally bound.

ISBN: 9783319565200

Standard No.: 10.1007/978-3-319-56520-0doiSubjects--Topical Terms:

3219833
Molecular clouds.

LC Class. No.: QB791.4

Dewey Class. No.: 523.1125

Submillimetre studies of prestellar and starless cores in the Ophiuchus, Taurus and Cepheus molecular clouds
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520 $a This thesis presents studies of the starless core populations of three nearby molecular clouds made as part of the James Clerk Maxwell Telescope Gould Belt Survey. These studies combine observations made using the SCUBA-2 submillimetre camera with data from several other instruments, including the Herschel Space Observatory, to identify and characterise starless cores in the Ophiuchus, Taurus and Cepheus molecular clouds. The temperatures, masses and stability against collapse of the starless cores are measured, the latter through detailed virial analysis, including a determination of the external pressure on the cores. The book illustrates core stability on the "virial plane", in which core stability is plotted against core confinement mode, showing that starless cores are typically confined by external pressure rather than self-gravity. It also presents an analytical model of the evolution of starless cores in the "virial plane", demonstrating that a pressure-confined starless core may evolve due to virial stability rather than gravitational collapse, which means that a core can only be definitively considered to be prestellar if it is gravitationally bound.
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