Matches in SemOpenAlex for { <https://semopenalex.org/work/W3105032816> ?p ?o ?g. }
- W3105032816 endingPage "20" @default.
- W3105032816 startingPage "20" @default.
- W3105032816 abstract "We study the rich globular cluster (GC) system in the center of the massive cluster of galaxies Abell 1689 (z=0.18), one of the most powerful gravitational lenses known. With 28 HST/ACS orbits in the F814W bandpass, we reach magnitude I_814=29 with >90% completeness and sample the brightest ~5% of the GC system. Assuming the well-known Gaussian form of the GC luminosity function (GCLF), we estimate a total population of N(GC_total) = 162,850 GCs within a projected radius of 400kpc. As many as half may comprise an intracluster component. Even with the sizable uncertainties, which mainly result from the uncertain GCLF parameters, this is by far the largest GC system studied to date. The specific frequency S_N is high, but not uncommon for central galaxies in massive clusters, rising from S_N~5 near the center to ~12 at large radii. Passive galaxy fading would increase S_N by ~20% at z=0. We construct the radial mass profiles of the GCs, stars, intracluster gas, and lensing-derived total mass, and we compare the mass fractions as a function of radius. The estimated mass in GCs, M(GC_total)=3.9x10^10 Msun, is comparable to ~80% of the total stellar mass of the Milky Way. The shape of the GC mass profile appears intermediate between those of the stellar light and total cluster mass. Despite the extreme nature of this system, the ratios of the GC mass to the baryonic and total masses, and thus the GC formation efficiency, are typical of those in other rich clusters when comparing at the same physical radii. The GC formation efficiency is not constant, but varies with radius, in a manner that appears similar for different clusters; we speculate on the reasons for this similarity in profile." @default.
- W3105032816 created "2020-11-23" @default.
- W3105032816 creator A5002505870 @default.
- W3105032816 creator A5003436132 @default.
- W3105032816 creator A5015711312 @default.
- W3105032816 creator A5028466576 @default.
- W3105032816 creator A5039663747 @default.
- W3105032816 creator A5042429783 @default.
- W3105032816 creator A5050315655 @default.
- W3105032816 creator A5058685879 @default.
- W3105032816 creator A5067656260 @default.
- W3105032816 creator A5090759453 @default.
- W3105032816 date "2013-08-30" @default.
- W3105032816 modified "2023-10-10" @default.
- W3105032816 title "THE RICH GLOBULAR CLUSTER SYSTEM OF ABELL 1689 AND THE RADIAL DEPENDENCE OF THE GLOBULAR CLUSTER FORMATION EFFICIENCY" @default.
- W3105032816 cites W1921289443 @default.
- W3105032816 cites W1966101772 @default.
- W3105032816 cites W1967814424 @default.
- W3105032816 cites W1971904631 @default.
- W3105032816 cites W1974866549 @default.
- W3105032816 cites W1982079322 @default.
- W3105032816 cites W1982578766 @default.
- W3105032816 cites W1993064569 @default.
- W3105032816 cites W1993468683 @default.
- W3105032816 cites W1994671833 @default.
- W3105032816 cites W2001230044 @default.
- W3105032816 cites W2002100632 @default.
- W3105032816 cites W2005720343 @default.
- W3105032816 cites W2006696562 @default.
- W3105032816 cites W2006855172 @default.
- W3105032816 cites W2013949855 @default.
- W3105032816 cites W2014586054 @default.
- W3105032816 cites W2018460805 @default.
- W3105032816 cites W2018462618 @default.
- W3105032816 cites W2019511225 @default.
- W3105032816 cites W2023699115 @default.
- W3105032816 cites W2025297464 @default.
- W3105032816 cites W2025800435 @default.
- W3105032816 cites W2029343094 @default.
- W3105032816 cites W2029695419 @default.
- W3105032816 cites W2029915881 @default.
- W3105032816 cites W2038143853 @default.
- W3105032816 cites W2059588423 @default.
- W3105032816 cites W2059771729 @default.
- W3105032816 cites W2060850144 @default.
- W3105032816 cites W2062063563 @default.
- W3105032816 cites W2067264089 @default.
- W3105032816 cites W2068149521 @default.
- W3105032816 cites W2071830198 @default.
- W3105032816 cites W2072816296 @default.
- W3105032816 cites W2073780160 @default.
- W3105032816 cites W2085918041 @default.
- W3105032816 cites W2093671563 @default.
- W3105032816 cites W2102825905 @default.
- W3105032816 cites W2109014998 @default.
- W3105032816 cites W2109896455 @default.
- W3105032816 cites W2112796270 @default.
- W3105032816 cites W2124808710 @default.
- W3105032816 cites W2129276959 @default.
- W3105032816 cites W2130254840 @default.
- W3105032816 cites W2133810750 @default.
- W3105032816 cites W2141003628 @default.
- W3105032816 cites W2141709306 @default.
- W3105032816 cites W2142155609 @default.
- W3105032816 cites W2142238829 @default.
- W3105032816 cites W2143468430 @default.
- W3105032816 cites W2145610607 @default.
- W3105032816 cites W2145729359 @default.
- W3105032816 cites W2147875900 @default.
- W3105032816 cites W2165084703 @default.
- W3105032816 cites W2176131481 @default.
- W3105032816 cites W2992694797 @default.
- W3105032816 cites W3098013579 @default.
- W3105032816 cites W3098271459 @default.
- W3105032816 cites W3098800005 @default.
- W3105032816 cites W3099469848 @default.
- W3105032816 cites W3099481019 @default.
- W3105032816 cites W3100110286 @default.
- W3105032816 cites W3100261661 @default.
- W3105032816 cites W3100334553 @default.
- W3105032816 cites W3100476555 @default.
- W3105032816 cites W3100787730 @default.
- W3105032816 cites W3101170560 @default.
- W3105032816 cites W3101961972 @default.
- W3105032816 cites W3102077538 @default.
- W3105032816 cites W3103368470 @default.
- W3105032816 cites W3103454771 @default.
- W3105032816 cites W3103474240 @default.
- W3105032816 cites W3104206021 @default.
- W3105032816 cites W3104625974 @default.
- W3105032816 cites W3105075790 @default.
- W3105032816 cites W3105235177 @default.
- W3105032816 cites W3105652124 @default.
- W3105032816 cites W3105710416 @default.
- W3105032816 cites W3106273399 @default.
- W3105032816 cites W3121230951 @default.
- W3105032816 cites W3122846358 @default.
- W3105032816 cites W4234523407 @default.