A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Emissao da molecula h2 em nebulosas planetarias, por isabel. Jul 01, 2012 video con informacion sobre las nebulosas planetarias. Las nebulosas planetarias son estrellas en su proceso evolutivo final. A planetary nebula forms when a star can no longer support itself by fusion reactions in its center. A planetary nebula, abbreviated as pn or plural pne, is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives. Planetary nebulae are typically small, faint nebulae, found between the stars as comparatively rare objects. As nebulosas planetarias adoitan a ser obxectos tenues e non son visibles a simple vista. All structured data from the file and property namespaces is available under the creative commons cc0 license. The term planetary nebula is a misnomer because they are unrelated to planets or exoplanets. Once thought to be strange, odd objects, evidence has been found that the vast majority of stars will produce such an object when they are evolving from their late red giant state to their final white dwarf state, and their rareness is just due to the short lifetime of this state of. Nebulosa planetaria wikipedia, a enciclopedia libre.
The term originates from the planetlike round shape of these. Files are available under licenses specified on their description page. Nebulosas planetarias pdf descargar libre docplayer. A molecula h2 em nebulosas planetarias, por isabel regina. The gravity from the material in the outer part of the star takes its inevitable toll on the structure of the star, and forces the inner parts to condense and heat up. A planetary nebula, abbreviated as pn or plural pne, is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives the term planetary nebula is a misnomer because they are unrelated to planets or exoplanets.
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