Mostra el registre d'ítem simple

dc.contributor.authorDomínguez, Inmaculada
dc.contributor.authorBravo Guil, Eduardo
dc.contributor.authorPiersanti, Luciano
dc.contributor.authorStraniero, Oscar
dc.contributor.authorTornambé, Amedeo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.date.accessioned2014-05-12T13:59:00Z
dc.date.available2014-05-12T13:59:00Z
dc.date.created2008
dc.date.issued2008
dc.identifier.citationDomínguez, I. [et al.]. Supernovae and dark energy. A: Cosmology Across Cultures. "Cosmology Across Cultures". Granada: Astronomical Society of the Pacific, 2008, p. 42-46.
dc.identifier.isbn978-1-58381-698-1
dc.identifier.urihttp://hdl.handle.net/2117/22952
dc.description.abstractA decade ago the observations of thermonuclear supernovae at high-redhifts showed that the expansion rate of the Universe is accelerating and since then, the evidence for cosmic acceleration has gotten stronger. This acceleration requires that the Universe is dominated by dark energy, an exotic component characterized by its negative pressure. Nowadays all the available astronomical data (i.e. thermonuclear supernovae, cosmic microwave background, barionic acoustic oscillations, large scale structure, etc.) agree that our Universe is made of about 70% of dark energy, 25% of cold dark matter and only 5% of known, familiar matter. This Universe is geometrically flat, older than previously thought, its destiny is no longer linked to its geometry but to dark energy, and we ignore about 95% of its components. To understand the nature of dark energy is probably the most fundamental problem in physics today. Current astronomical observations are compatible with dark energy being the vacuum energy. Supernovae have played a fundamental role in modern Cosmology and it is expected that they will contribute to unveil the dark energy. In order to do that it is mandatory to understand the limits of supernovae as cosmological distance indicators, improving their precision by a factor 10.
dc.format.extent5 p.
dc.language.isoeng
dc.publisherAstronomical Society of the Pacific
dc.subjectÀrees temàtiques de la UPC::Física::Astronomia i astrofísica
dc.subject.lcshSupernovae
dc.subject.otherSupernovae
dc.subject.otherDark energy
dc.titleSupernovae and dark energy
dc.typeConference report
dc.subject.lemacSupernoves
dc.contributor.groupUniversitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://cdsads.u-strasbg.fr/abs/2009ASPC..409...42D
dc.rights.accessOpen Access
local.identifier.drac2371579
dc.description.versionPostprint (published version)
local.citation.authorDomínguez, I.; Bravo, E.; Piersanti, L.; Straniero, O.; Tornambé, A.
local.citation.contributorCosmology Across Cultures
local.citation.pubplaceGranada
local.citation.publicationNameCosmology Across Cultures
local.citation.startingPage42
local.citation.endingPage46


Fitxers d'aquest items

Thumbnail

Aquest ítem apareix a les col·leccions següents

Mostra el registre d'ítem simple