FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1484204443> ?p ?o ?g. }

• W1484204443 endingPage "65" @default.
• W1484204443 startingPage "65" @default.
• W1484204443 abstract "We present a study of the dynamical properties of 125 compact stellar systems (CSSs) in the nearby giant elliptical galaxy NGC5128, using high-resolution spectra (R 26,000) obtained with VLT/FLAMES. Our results provide evidence for a new type of star cluster, based on the CSS dynamical mass scaling relations. All radial velocity (v_r) and line-of-sight velocity dispersion (sigma_los) measurements are performed with the penalized pixel fitting (ppxf) technique, which provided sigma_ppxf estimates for 115 targets. The sigma_ppxf estimates are corrected to the 2D projected half-light radii, sigma_{1/2}, as well as the cluster cores, sigma_0, accounting for observational/aperture effects and are combined with structural parameters, from high spatial resolution imaging, in order to derive total dynamical masses (M_dyn) for 112 members of NGC5128's star cluster system. In total, 89 CSSs have dynamical masses measured for the first time along with the corresponding dynamical mass-to-light ratios (Upsilon_V^dyn). We find two distinct sequences in the Upsilon_V^dyn - M_dyn plane, which are well approximated by power laws of the forms Upsilon_V^dyn M_dyn^0.33+-0.04 and Upsilon_V^dyn - M_dyn^0.79+-0.04. The shallower sequence corresponds to the very bright tail of the globular cluster luminosity function (GCLF), while the steeper relation appears to be populated by a distinct group of objects which require significant dark gravitating components such as central massive black holes and/or exotically concentrated dark matter distributions. This result would suggest that the formation and evolution of these CSSs are markedly different from the classical globular clusters in NGC5128 and the Local Group, despite the fact that these clusters have luminosities similar to the GCLF turn-over magnitude. We include a thorough discussion of myriad factors potentially influencing our measurements." @default.
• W1484204443 created "2016-06-24" @default.
• W1484204443 creator A5015724714 @default.
• W1484204443 creator A5037672612 @default.
• W1484204443 creator A5039870273 @default.
• W1484204443 creator A5081875036 @default.
• W1484204443 date "2015-05-20" @default.
• W1484204443 modified "2023-10-17" @default.
• W1484204443 title "OBSERVATIONAL EVIDENCE FOR A DARK SIDE TO NGC 5128’S GLOBULAR CLUSTER SYSTEM" @default.
• W1484204443 cites W1569701120 @default.
• W1484204443 cites W1640978875 @default.
• W1484204443 cites W1875172237 @default.
• W1484204443 cites W1969620351 @default.
• W1484204443 cites W1971160679 @default.
• W1484204443 cites W1973420374 @default.
• W1484204443 cites W1973682243 @default.
• W1484204443 cites W1976316789 @default.
• W1484204443 cites W1978877719 @default.
• W1484204443 cites W1985082602 @default.
• W1484204443 cites W1985290220 @default.
• W1484204443 cites W1986834411 @default.
• W1484204443 cites W1988016309 @default.
• W1484204443 cites W1988822045 @default.
• W1484204443 cites W1990851383 @default.
• W1484204443 cites W1991941183 @default.
• W1484204443 cites W1992118031 @default.
• W1484204443 cites W1992885010 @default.
• W1484204443 cites W1996075924 @default.
• W1484204443 cites W1996737323 @default.
• W1484204443 cites W2003362225 @default.
• W1484204443 cites W2008781687 @default.
• W1484204443 cites W2009022174 @default.
• W1484204443 cites W2011198720 @default.
• W1484204443 cites W2012017892 @default.
• W1484204443 cites W2017524870 @default.
• W1484204443 cites W2018462618 @default.
• W1484204443 cites W2020836593 @default.
• W1484204443 cites W2024414503 @default.
• W1484204443 cites W2025793103 @default.
• W1484204443 cites W2027065488 @default.
• W1484204443 cites W2027611485 @default.
• W1484204443 cites W2027778512 @default.
• W1484204443 cites W2029181373 @default.
• W1484204443 cites W2029343094 @default.
• W1484204443 cites W2030524433 @default.
• W1484204443 cites W2031721811 @default.
• W1484204443 cites W2034227336 @default.
• W1484204443 cites W2041508062 @default.
• W1484204443 cites W2041531529 @default.
• W1484204443 cites W2043142278 @default.
• W1484204443 cites W2044042419 @default.
• W1484204443 cites W2045064296 @default.
• W1484204443 cites W2048585664 @default.
• W1484204443 cites W2057788692 @default.
• W1484204443 cites W2059798808 @default.
• W1484204443 cites W2061646233 @default.
• W1484204443 cites W2067538338 @default.
• W1484204443 cites W2069964426 @default.
• W1484204443 cites W2070304421 @default.
• W1484204443 cites W2071992528 @default.
• W1484204443 cites W2073021911 @default.
• W1484204443 cites W2075889215 @default.
• W1484204443 cites W2082576984 @default.
• W1484204443 cites W2088034685 @default.
• W1484204443 cites W2088369797 @default.
• W1484204443 cites W2089261716 @default.
• W1484204443 cites W2089382722 @default.
• W1484204443 cites W2102851607 @default.
• W1484204443 cites W2103370723 @default.
• W1484204443 cites W2106654062 @default.
• W1484204443 cites W2109146631 @default.
• W1484204443 cites W2112173033 @default.
• W1484204443 cites W2122089338 @default.
• W1484204443 cites W2128469357 @default.
• W1484204443 cites W2128622904 @default.
• W1484204443 cites W2129276959 @default.
• W1484204443 cites W2136921632 @default.
• W1484204443 cites W2137425677 @default.
• W1484204443 cites W2143468430 @default.
• W1484204443 cites W2157805129 @default.
• W1484204443 cites W2164044997 @default.
• W1484204443 cites W2168420728 @default.
• W1484204443 cites W3098222250 @default.
• W1484204443 cites W3098458080 @default.
• W1484204443 cites W3099098644 @default.
• W1484204443 cites W3099454939 @default.
• W1484204443 cites W3100330412 @default.
• W1484204443 cites W3100334553 @default.
• W1484204443 cites W3100457824 @default.
• W1484204443 cites W3101056924 @default.
• W1484204443 cites W3101102861 @default.
• W1484204443 cites W3101344500 @default.
• W1484204443 cites W3101401203 @default.
• W1484204443 cites W3102066332 @default.
• W1484204443 cites W3102329975 @default.
• W1484204443 cites W3102577119 @default.
• W1484204443 cites W3102627668 @default.
• W1484204443 cites W3103036712 @default.

• next