FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3105128711> ?p ?o ?g. }

• W3105128711 endingPage "1331" @default.
• W3105128711 startingPage "1309" @default.
• W3105128711 abstract "X-ray clusters are conventionally divided into two classes: ‘cool core’ (CC) clusters and ‘non-cool core’ (NCC) clusters. Yet relatively little attention has been given to the origins of this apparent dichotomy and, in particular, to the energetics and thermal histories of the two classes. We develop a model for the entropy profiles of clusters starting from the configuration established by gravitational shock heating and radiative cooling. At large radii, gravitational heating accounts for the observed profiles and their scalings well. However, at small and intermediate radii, radiative cooling and gravitational heating cannot be combined to explain the observed profiles of either CC or NCC clusters. The inferred entropy profiles of NCC clusters require that material is ‘pre-heated’ prior to cluster collapse in order to explain the absence of low-entropy (cool) material in these systems. We show that a similar modification is also required in CC clusters in order to match their entropy profiles at intermediate radii. In CC clusters, this modification is unstable, and an additional process is required to prevent cooling below a temperature of a few keV. We show that this can be achieved by adding a self-consistent active galactic nuclei (AGN) feedback loop in which the lowest entropy, most rapidly cooling material is heated and rises buoyantly to mix with material at larger radii. The resulting model does not require fine-tuning and is in excellent agreement with a wide variety of observational data from Chandra and XMM–Newton, including entropy and gas density profiles, the luminosity–temperature relation and high-resolution spectra. The spread in cluster core morphologies is seen to arise because of the steep dependence of the central cooling time on the initial level of pre-heating. Some of the other implications of this model are briefly discussed." @default.
• W3105128711 created "2020-11-23" @default.
• W3105128711 creator A5004393017 @default.
• W3105128711 creator A5018993806 @default.
• W3105128711 creator A5021273735 @default.
• W3105128711 creator A5033973593 @default.
• W3105128711 date "2008-05-01" @default.
• W3105128711 modified "2023-09-25" @default.
• W3105128711 title "Towards a holistic view of the heating and cooling of the intracluster medium" @default.
• W3105128711 cites W1593619157 @default.
• W3105128711 cites W1611594687 @default.
• W3105128711 cites W1766729418 @default.
• W3105128711 cites W1964110440 @default.
• W3105128711 cites W1965332506 @default.
• W3105128711 cites W1966324939 @default.
• W3105128711 cites W1967032804 @default.
• W3105128711 cites W1968752888 @default.
• W3105128711 cites W1969750040 @default.
• W3105128711 cites W1970601257 @default.
• W3105128711 cites W1974511674 @default.
• W3105128711 cites W1974654147 @default.
• W3105128711 cites W1977362570 @default.
• W3105128711 cites W1978193295 @default.
• W3105128711 cites W1978470115 @default.
• W3105128711 cites W1979387394 @default.
• W3105128711 cites W1983208655 @default.
• W3105128711 cites W1984075293 @default.
• W3105128711 cites W1984236049 @default.
• W3105128711 cites W1989604124 @default.
• W3105128711 cites W1989694873 @default.
• W3105128711 cites W1991398291 @default.
• W3105128711 cites W1997089041 @default.
• W3105128711 cites W1997738987 @default.
• W3105128711 cites W1998292325 @default.
• W3105128711 cites W1999812653 @default.
• W3105128711 cites W2003953716 @default.
• W3105128711 cites W2004699585 @default.
• W3105128711 cites W2007989535 @default.
• W3105128711 cites W2009009580 @default.
• W3105128711 cites W2009121658 @default.
• W3105128711 cites W2014456566 @default.
• W3105128711 cites W2015904699 @default.
• W3105128711 cites W2017915540 @default.
• W3105128711 cites W2021627047 @default.
• W3105128711 cites W2023541500 @default.
• W3105128711 cites W2025489111 @default.
• W3105128711 cites W2026650271 @default.
• W3105128711 cites W2030605651 @default.
• W3105128711 cites W2035478725 @default.
• W3105128711 cites W2039257640 @default.
• W3105128711 cites W2039720425 @default.
• W3105128711 cites W2039997515 @default.
• W3105128711 cites W2042259048 @default.
• W3105128711 cites W2043661969 @default.
• W3105128711 cites W2044603905 @default.
• W3105128711 cites W2044928077 @default.
• W3105128711 cites W2046707937 @default.
• W3105128711 cites W2047170523 @default.
• W3105128711 cites W2047436235 @default.
• W3105128711 cites W2049182449 @default.
• W3105128711 cites W2051671594 @default.
• W3105128711 cites W2052151970 @default.
• W3105128711 cites W2053304036 @default.
• W3105128711 cites W2056034240 @default.
• W3105128711 cites W2057023417 @default.
• W3105128711 cites W2057867577 @default.
• W3105128711 cites W2059557911 @default.
• W3105128711 cites W2068618869 @default.
• W3105128711 cites W2075167988 @default.
• W3105128711 cites W2076759031 @default.
• W3105128711 cites W2084557309 @default.
• W3105128711 cites W2087877452 @default.
• W3105128711 cites W2089739884 @default.
• W3105128711 cites W2089985259 @default.
• W3105128711 cites W2094011977 @default.
• W3105128711 cites W2094054033 @default.
• W3105128711 cites W2094702133 @default.
• W3105128711 cites W2096459253 @default.
• W3105128711 cites W2099424715 @default.
• W3105128711 cites W2099613694 @default.
• W3105128711 cites W2100569210 @default.
• W3105128711 cites W2105176052 @default.
• W3105128711 cites W2111881368 @default.
• W3105128711 cites W2112366117 @default.
• W3105128711 cites W2113489874 @default.
• W3105128711 cites W2123729064 @default.
• W3105128711 cites W2124261224 @default.
• W3105128711 cites W2125274884 @default.
• W3105128711 cites W2130141217 @default.
• W3105128711 cites W2131083929 @default.
• W3105128711 cites W2134698652 @default.
• W3105128711 cites W2135517861 @default.
• W3105128711 cites W2139071329 @default.
• W3105128711 cites W2139971627 @default.
• W3105128711 cites W2141709306 @default.
• W3105128711 cites W2143104479 @default.
• W3105128711 cites W2143605197 @default.
• W3105128711 cites W2145874579 @default.

• next