FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1904966658> ?p ?o ?g. }

• W1904966658 endingPage "1936" @default.
• W1904966658 startingPage "1924" @default.
• W1904966658 abstract "Elliptical galaxies and globular clusters (GCs) have traditionally been regarded as physically distinct entities due to their discontinuous distribution in key scaling diagrams involving size, luminosity and velocity dispersion. Recently this distinctness has been challenged by the discovery of stellar systems with mass intermediate between those of GCs and dwarf ellipticals (such as ultracompact dwarfs and dwarf galaxy transition objects). Here we examine the relationship between the virial and stellar mass for a range of old stellar systems, from GCs to giant ellipticals, and including such intermediate-mass objects (IMOs). Improvements on previous work in this area include the use of (i) near-infrared magnitudes from the Two Micron All Sky Survey (2MASS), (ii) aperture corrections to velocity dispersions, (iii) homogeneous half-light radii and (iv) accounting for the effects of non-homology in galaxies. We find a virial-to-stellar mass relation that ranges from ∼104M⊙ systems (GCs) to ∼1012M⊙ systems (elliptical galaxies). The lack of measured velocity dispersions for dwarf ellipticals with −16 > MK > −18 (∼108M⊙) currently inhibits our ability to determine how, or indeed if, these galaxies connect continuously with GCs in terms of their virial-to-stellar mass ratios. We find elliptical galaxies to have roughly equal fractions of dark and stellar matter within a virial radius; only in the most massive (greater than 1012M⊙) ellipticals does dark matter dominate the virial mass. Although the IMOs reveal slightly higher virial-to-stellar mass ratios than lower mass GCs, this may simply reflect our limited understanding of their initial mass function (and hence their stellar mass-to-light ratios) or structural properties. We argue that most of these IMOs have similar properties to massive GCs, i.e. IMOs are essentially massive star clusters. Only the dwarf spheroidal galaxies exhibit behaviour notably distinct from the other stellar systems examined here, i.e. they display a strongly increasing virial-to-stellar mass ratio (equivalent to higher dark matter fractions) with decreasing stellar mass. The data used in this study are available in electronic format." @default.
• W1904966658 created "2016-06-24" @default.
• W1904966658 creator A5000611658 @default.
• W1904966658 creator A5009191072 @default.
• W1904966658 creator A5043358107 @default.
• W1904966658 creator A5078450674 @default.
• W1904966658 date "2008-09-04" @default.
• W1904966658 modified "2023-10-10" @default.
• W1904966658 title "Uniting old stellar systems: from globular clusters to giant ellipticals" @default.
• W1904966658 cites W1967322575 @default.
• W1904966658 cites W1972242974 @default.
• W1904966658 cites W1975889887 @default.
• W1904966658 cites W1976000216 @default.
• W1904966658 cites W1976535291 @default.
• W1904966658 cites W1978877719 @default.
• W1904966658 cites W1981892072 @default.
• W1904966658 cites W1984302329 @default.
• W1904966658 cites W1990357899 @default.
• W1904966658 cites W1991941183 @default.
• W1904966658 cites W1994671833 @default.
• W1904966658 cites W1994837005 @default.
• W1904966658 cites W1995895933 @default.
• W1904966658 cites W2000957502 @default.
• W1904966658 cites W2004783188 @default.
• W1904966658 cites W2011213790 @default.
• W1904966658 cites W2013604743 @default.
• W1904966658 cites W2018717013 @default.
• W1904966658 cites W2019028512 @default.
• W1904966658 cites W2019691915 @default.
• W1904966658 cites W2027091322 @default.
• W1904966658 cites W2029083557 @default.
• W1904966658 cites W2036902403 @default.
• W1904966658 cites W2040459248 @default.
• W1904966658 cites W2041313887 @default.
• W1904966658 cites W2042905846 @default.
• W1904966658 cites W2044042419 @default.
• W1904966658 cites W2045064296 @default.
• W1904966658 cites W2052598803 @default.
• W1904966658 cites W2054014287 @default.
• W1904966658 cites W2054930014 @default.
• W1904966658 cites W2055843263 @default.
• W1904966658 cites W2056844470 @default.
• W1904966658 cites W2059798808 @default.
• W1904966658 cites W2061707408 @default.
• W1904966658 cites W2061725295 @default.
• W1904966658 cites W2063003435 @default.
• W1904966658 cites W2064079986 @default.
• W1904966658 cites W2066185890 @default.
• W1904966658 cites W2066406099 @default.
• W1904966658 cites W2066645046 @default.
• W1904966658 cites W2067538338 @default.
• W1904966658 cites W2068245042 @default.
• W1904966658 cites W2070711184 @default.
• W1904966658 cites W2070776221 @default.
• W1904966658 cites W2079109248 @default.
• W1904966658 cites W2080275004 @default.
• W1904966658 cites W2082735313 @default.
• W1904966658 cites W2083669125 @default.
• W1904966658 cites W2089780396 @default.
• W1904966658 cites W2091535256 @default.
• W1904966658 cites W2091925924 @default.
• W1904966658 cites W2092305195 @default.
• W1904966658 cites W2101643627 @default.
• W1904966658 cites W2101725948 @default.
• W1904966658 cites W2103370723 @default.
• W1904966658 cites W2103855290 @default.
• W1904966658 cites W2106654062 @default.
• W1904966658 cites W2110085730 @default.
• W1904966658 cites W2125835283 @default.
• W1904966658 cites W2125869833 @default.
• W1904966658 cites W2131462302 @default.
• W1904966658 cites W2135503860 @default.
• W1904966658 cites W2137573215 @default.
• W1904966658 cites W2141520494 @default.
• W1904966658 cites W2144757151 @default.
• W1904966658 cites W2147479758 @default.
• W1904966658 cites W2147981121 @default.
• W1904966658 cites W2153352619 @default.
• W1904966658 cites W2158593150 @default.
• W1904966658 cites W2165364012 @default.
• W1904966658 cites W2166210136 @default.
• W1904966658 cites W2170186707 @default.
• W1904966658 cites W2172188094 @default.
• W1904966658 cites W2332134691 @default.
• W1904966658 cites W2952460627 @default.
• W1904966658 cites W3098297174 @default.
• W1904966658 cites W3098780292 @default.
• W1904966658 cites W3099125333 @default.
• W1904966658 cites W3099319998 @default.
• W1904966658 cites W3099528505 @default.
• W1904966658 cites W3100330412 @default.
• W1904966658 cites W3101056924 @default.
• W1904966658 cites W3101344500 @default.
• W1904966658 cites W3101584062 @default.
• W1904966658 cites W3102577119 @default.
• W1904966658 cites W3103438512 @default.
• W1904966658 cites W3103552626 @default.
• W1904966658 cites W3103806357 @default.

• next