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J/ApJ/726/108       Dispersion-supported stellar systems       (Tollerud+, 2011)

From galaxy clusters to ultra-faint dwarf spheroidals: a fundamental curve connecting dispersion-supported galaxies to their dark matter halos. Tollerud E.J., Bullock J.S., Graves G.J., Wolf J. <Astrophys. J., 726, 108 (2011)> =2011ApJ...726..108T
ADC_Keywords: Velocity dispersion ; Galaxies, nearby ; Clusters, galaxy Keywords: dark matter - galaxies: clusters: general - galaxies: dwarf - galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - Local Group Abstract: We examine scaling relations of dispersion-supported galaxies over more than eight orders of magnitude in luminosity by transforming standard fundamental plane parameters into a space of mass, radius, and luminosity. The radius variable r1/2 is the deprojected (three-dimensional) half-light radius, the mass variable M1/2 is the total gravitating mass within this radius, and L1/2 is half the luminosity. We find that from ultra-faint dwarf spheroidals to giant cluster spheroids, dispersion-supported galaxies scatter about a one-dimensional "fundamental curve" through this MRL space. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 58 260 Key properties of dispersion-supported stellar systems
See also: VII/202 : Globular Clusters in the Milky Way (Harris, 1997) J/ApJ/711/361 : Local Group dE galaxies. II. (Geha+, 2010) J/MNRAS/397/1748 : Spectroscopic study of Segue 2 (Belokurov+, 2009) J/ApJ/692/1464 : Spectroscopy of Segue 1 (Geha+, 2009) J/ApJ/689/913 : Fundamental planes of early-type galaxies (La Barbera+, 2008) J/MNRAS/389/1924 : Old stellar systems (globulars-ellipticals) (Forbes+, 2008) J/MNRAS/380/281 : Faint galactic satellites survey (Martin+, 2007) J/ApJ/638/725 : Fundamental manifold of spheroids (Zaritsky+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Object name 12- 15 F4.2 [km/s] logsig Log of velocity dispersion 17- 21 F5.2 [kpc] logRe Log of 2-D half-light/effective radius 23- 27 F5.2 [kpc] logr1/2 Log of 3-D (deprojected) half-light radius (1) 29- 33 F5.2 [Lsun] logL1/2 Log of V-band half-luminosity 35- 39 F5.2 [Msun] logM1/2 Log of half-light mass (from Eq.1: M=3σ2r1/2/G) 41- 45 F5.2 [Msun] logMDM ?=-1 Log of corrected/dark half-light mass (2) 47- 50 A4 --- Type Object type (3) 52- 54 I3 --- Nobj ? Number of objects per bin for E-type data set 56- 58 A3 --- Ref Source code (4)
Note (1): See Section 3. Note (2): As described in Section 4. A "-1.0" value indicates nominally consistent with no dark matter mass within the error bars. Note (3): Object type as follows: CSph = Cluster Spheroid as described in Zaritsky et al. (2006, J/ApJ/638/725) E = bright Elliptical galaxy; dE = dwarf Elliptical; dSph = local group dwarf spheroidal; GC = Galactic globular cluster; UCD = Ultra Compact Dwarf. Note (4): Reference as follows: 1 = Zaritsky et al. (2006, Cat. J/ApJ/638/725); 2 = Graves et al. (2009ApJ...698.1590G); 3 = Geha et al. (2003AJ....126.1794G); 4 = Wolf et al. (2010MNRAS.406.1220W); 5 = Harris (1996, Cat. VII/195; superseded by VII/202); 6 = Pryor & Meylan (1993ASPC...50..357P); 7 = Mieske et al. (2008A&A...487..921M).
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 17-Aug-2012
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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