@prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . @prefix prodotto: . unitaDiPersonaleInterno:MATRICOLA365 pubblicazioni:autoreCNRDi prodotto:ID5715 . @prefix rdf: . prodotto:ID5715 rdf:type prodotto:TIPO1101 . @prefix retescientifica: . prodotto:ID5715 rdf:type retescientifica:ProdottoDellaRicerca . @prefix rdfs: . prodotto:ID5715 rdfs:label "Gravitating mass profiles of nearby galaxy clusters and relations with X-ray gas temperature, luminosity and mass (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID5715 pubblicazioni:anno "2002-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID5715 skos:altLabel "
Ettori, S.; De Grandi, S.; Molendi, S. (2002)
Gravitating mass profiles of nearby galaxy clusters and relations with X-ray gas temperature, luminosity and mass
"^^rdf:HTML ; pubblicazioni:autori "Ettori, S.; De Grandi, S.; Molendi, S."^^xsd:string ; pubblicazioni:paginaInizio "841"^^xsd:string ; pubblicazioni:paginaFine "855"^^xsd:string ; pubblicazioni:numeroVolume "391"^^xsd:string ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "AA(European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching, Germany), AB(Osservatorio Astronomico di Brera, via Bianchi 46, 23807 Merate (LC), Italy), AC(Istituto di Fisica Cosmica ``G.Occhialini'', via Bassini 15, 20133 Milano, Italy)"^^xsd:string ; pubblicazioni:titolo "Gravitating mass profiles of nearby galaxy clusters and relations with X-ray gas temperature, luminosity and mass"^^xsd:string . @prefix prodottidellaricerca: . prodotto:ID5715 prodottidellaricerca:abstract "We consider a sample of 22 nearby clusters of galaxies observed with the Medium Energy Concentrator Spectrometer (MECS) on board BeppoSAX . They cover the range in gas temperature between 3 and 10 keV, with bolometric X-ray luminosity between 2 x 1044 erg s-1 and 6 x 1045 erg s-1. Using the de-projected gas temperature and density profiles resolved in a number of bins between 5 and 7 and obtained from this dataset only, we recover the total gravitating mass profiles for 20 objects just applying the (i) spherical symmetry and (ii) hydrostatic equilibrium assumptions. We investigate the correlations between total mass, gas temperature and luminosity at several overdensities values and find that the slopes of these relations are independent of the considered overdensity and consistent with what is predicted from the cluster scaling laws. The best-fit results on the normalization of the M-T relation are slightly lower, but still consistent considering the large errors that we measure, with hydrodynamical simulations. A segregation between relaxed and non-relaxed systems is present in each plane of these relations pointing out a significant component in their intrinsic scatter. This segregation becomes more evident at higher overdensities and when physical quantities, like M_gas and L, that are direct functions of the amount of gas observed, are considered." . @prefix istituto: . prodotto:ID5715 prodottidellaricerca:prodottoDi istituto:CDS005 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA365 . @prefix parolechiave: . prodotto:ID5715 parolechiave:insiemeDiParoleChiave . istituto:CDS005 prodottidellaricerca:prodotto prodotto:ID5715 . parolechiave:insiemeDiParoleChiaveDi prodotto:ID5715 .