Matches in SemOpenAlex for { <https://semopenalex.org/work/W2027873593> ?p ?o ?g. }
- W2027873593 endingPage "1040" @default.
- W2027873593 startingPage "1025" @default.
- W2027873593 abstract "We discuss tree+SPH (smoothed-particle hydrodynamics) simulations of galaxy clusters and groups, aimed at studying the effect of cooling and non-gravitational heating on observable properties of the intracluster medium (ICM). We simulate at high resolution four group- and cluster-sized haloes, with virial masses in the range (0.2–4) × 1014 M⊙, extracted from a cosmological simulation of a flat Λ-cold dark matter model. We discuss the effects of using different SPH implementations and show that high resolution is mandatory to correctly follow the cooling pattern of the ICM. Our recipes for non-gravitational heating release energy to the gas either in an impulsive way, at some heating redshift, or by modulating the heating as a function of redshift according to the star formation history predicted by a semi-analytic model of galaxy formation. Our simulations demonstrate that cooling and non-gravitational heating exhibit a rather complex interplay in determining the properties of the ICM: results on the amount of star formation and on the X-ray properties are sensitive not only to the amount of heating energy, but also depend on the redshift at which it is assigned to gas particles. All of our heating schemes that correctly reproduce the X-ray scaling properties of clusters and groups do not succeed in reducing the fraction of collapsed gas below a level of 20 (30) per cent at the cluster (group) scale, which appears to be in excess of observational constraints. Finally, gas compression in cooling cluster regions causes an increase of the temperature and a steepening of the temperature profiles, independent of the presence of non-gravitational heating processes. This is inconsistent with recent observational evidence for a decrease of gas temperature towards the centre of relaxed clusters. Provided these discrepancies persist even for a more refined modelling of energy feedback from supernova or active galactic nuclei, they may indicate that some basic physical process is still missing in hydrodynamical simulations." @default.
- W2027873593 created "2016-06-24" @default.
- W2027873593 creator A5001733199 @default.
- W2027873593 creator A5004531924 @default.
- W2027873593 creator A5008042851 @default.
- W2027873593 creator A5011962744 @default.
- W2027873593 creator A5070303745 @default.
- W2027873593 creator A5091734853 @default.
- W2027873593 date "2003-07-11" @default.
- W2027873593 modified "2023-10-16" @default.
- W2027873593 title "Cooling and heating the intracluster medium in hydrodynamical simulations" @default.
- W2027873593 cites W1534735367 @default.
- W2027873593 cites W1577593660 @default.
- W2027873593 cites W160626692 @default.
- W2027873593 cites W1611594687 @default.
- W2027873593 cites W1620890260 @default.
- W2027873593 cites W1819679722 @default.
- W2027873593 cites W1929623410 @default.
- W2027873593 cites W1964110440 @default.
- W2027873593 cites W1968879722 @default.
- W2027873593 cites W1969514664 @default.
- W2027873593 cites W1970241953 @default.
- W2027873593 cites W1970601257 @default.
- W2027873593 cites W1971608308 @default.
- W2027873593 cites W1977650878 @default.
- W2027873593 cites W1979823024 @default.
- W2027873593 cites W1984326953 @default.
- W2027873593 cites W1986350100 @default.
- W2027873593 cites W1993076255 @default.
- W2027873593 cites W1997738987 @default.
- W2027873593 cites W1998577648 @default.
- W2027873593 cites W2003033219 @default.
- W2027873593 cites W2005092958 @default.
- W2027873593 cites W2007940586 @default.
- W2027873593 cites W2008239523 @default.
- W2027873593 cites W2009345260 @default.
- W2027873593 cites W2012848549 @default.
- W2027873593 cites W2013759984 @default.
- W2027873593 cites W2015295900 @default.
- W2027873593 cites W2020538549 @default.
- W2027873593 cites W2025020517 @default.
- W2027873593 cites W2025965474 @default.
- W2027873593 cites W2027032259 @default.
- W2027873593 cites W2028160690 @default.
- W2027873593 cites W2030083850 @default.
- W2027873593 cites W2035808428 @default.
- W2027873593 cites W2035998900 @default.
- W2027873593 cites W2038628492 @default.
- W2027873593 cites W2042403088 @default.
- W2027873593 cites W2042749826 @default.
- W2027873593 cites W2043685494 @default.
- W2027873593 cites W2047376076 @default.
- W2027873593 cites W2048179173 @default.
- W2027873593 cites W2048278220 @default.
- W2027873593 cites W2048301435 @default.
- W2027873593 cites W2051671594 @default.
- W2027873593 cites W2052554502 @default.
- W2027873593 cites W2056034240 @default.
- W2027873593 cites W2056050802 @default.
- W2027873593 cites W2059097690 @default.
- W2027873593 cites W2066301193 @default.
- W2027873593 cites W2070356459 @default.
- W2027873593 cites W2070998352 @default.
- W2027873593 cites W2071359064 @default.
- W2027873593 cites W2075167988 @default.
- W2027873593 cites W2078648729 @default.
- W2027873593 cites W2086021971 @default.
- W2027873593 cites W2094011977 @default.
- W2027873593 cites W2096204618 @default.
- W2027873593 cites W2098914923 @default.
- W2027873593 cites W2100569210 @default.
- W2027873593 cites W2111881368 @default.
- W2027873593 cites W2128808878 @default.
- W2027873593 cites W2130141217 @default.
- W2027873593 cites W2133436825 @default.
- W2027873593 cites W2133983847 @default.
- W2027873593 cites W2139971627 @default.
- W2027873593 cites W2143313694 @default.
- W2027873593 cites W2145321334 @default.
- W2027873593 cites W2162725047 @default.
- W2027873593 cites W2167306626 @default.
- W2027873593 cites W2167838850 @default.
- W2027873593 cites W2170761360 @default.
- W2027873593 cites W2586896434 @default.
- W2027873593 cites W3098093324 @default.
- W2027873593 cites W3098586219 @default.
- W2027873593 cites W3098941109 @default.
- W2027873593 cites W3099252131 @default.
- W2027873593 cites W3099573193 @default.
- W2027873593 cites W3099619485 @default.
- W2027873593 cites W3099880302 @default.
- W2027873593 cites W3100028230 @default.
- W2027873593 cites W3100569743 @default.
- W2027873593 cites W3100627232 @default.
- W2027873593 cites W3100693547 @default.
- W2027873593 cites W3101286056 @default.
- W2027873593 cites W3101610418 @default.
- W2027873593 cites W3102744723 @default.