Naked Singularities. (Cover story)

• Autores: Pankaj S. Joshi
• Localización: Scientific American, ISSN 0036-8733, Vol. 300, Nº. 2, 2009, págs. 36-43
• Idioma: inglés
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• Resumen

  • The article focuses on the possible existence of naked singularities, which are black holes that do not form an event horizon, are visible because they do not swallow all light, and may emit matter as well as swallow it. The formation of these singularities depends on the nature of a star's collapse, and the relation between gravity and gas pressure among other factors. Their existence raises questions about quantum theory and quantum gravity, but could provide insight into cosmology. INSETS: CLOTHED OR NAKED?;OBSERVING NAKED SINGULARITIES;Can a Black Hole Be Cracked Open?;Varieties of Stellar Collapse