J/ApJ/622/217 Light and motion in the local volume (Whiting+, 2005)
Light and motion in the local volume.
Whiting A.B.
<Astrophys. J., 622, 217-234 (2005)>
=2005ApJ...622..217W 2005ApJ...622..217W
ADC_Keywords: Galaxies, photometry ; Radial velocities
Keywords: dark matter - galaxies: kinematics and dynamics -
large-scale structure of universe
Abstract:
Using high-quality data on 149 galaxies within 10Mpc, I find no
correlation between luminosity and peculiar velocity at all. There is
no unequivocal sign on scales of 12Mpc of the expected gravitational
effect of the brightest galaxies, in particular infall toward groups,
or of infall toward the supergalactic plane on any scale. Either dark
matter is not distributed in the same way as luminous matter in this
region, or peculiar velocities are not due to fluctuations in mass.
The sensitivity of peculiar velocity studies to the background model
is highlighted.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 111 149 Local Volume data
table2.dat 109 21 Additional Local Volume data
refs.dat 118 100 References
table4.dat 39 170 Derived Local Volume data
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Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Source name
11- 16 F6.2 deg SGLON Supergalactic longitude
18- 23 F6.2 deg SGLAT Supergalactic latitude
25- 30 F6.1 km/s RV Radial velocity
32- 35 F4.1 km/s e_RV ? Error in RV
37- 39 I3 --- r_RV Source for RV
41- 45 F5.3 Mpc Dist Distance
47- 51 F5.3 Mpc e_Dist ? Error in Dist
53- 62 A10 --- r_Dist Comma separated list of sources for Dist
64- 82 A19 --- Method Method used to determine Dist (1)
84- 88 F5.3 --- Av Absorption
90- 94 F5.2 mag Bmag ? NED apparent B band magnitude
96-100 F5.2 mag Kmag ? NED apparent K band magnitude
102-105 F4.2 mag e_Kmag ? Error in Kmag
107-111 A5 --- r_Kmag Comma separated list of source for Kmag
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Note (1): Method used to determine Dist, defined as follows:
TRGB = tip of the red giant branch (sometimes using the SDSS filters or K,
and noted as such);
TRGB* = (uncertain) tip of the red giant branch;
HB = horizontal branch;
CMD = color-magnitude diagram;
RRL = RR Lyraes;
Ceph = Cepheids;
Clump or RC = red clump;
EB = eclipsing binaries;
Geo = a geometric method using masers
stars = brightest stars;
SBF = surface-brightness fluctuations;
rv = radial-velocity (assuming zero peculiar velocity and applying the
kinematic model derived in this paper);
TF = Tully-Fisher relation. The absorption for Circinus was taken
from Freeman et al. (1977A&A....55..445F 1977A&A....55..445F), all others from
Schlegel et al. (1998ApJ...500..525S 1998ApJ...500..525S) by way of NED.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Ref Reference number
5- 23 A19 --- Bibcode Bibcode
25- 49 A25 --- Aut Author's name
51-118 A68 --- Com Comment
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Source name
11- 16 F6.2 mag BMAG Derived absolute B band magnitude (1)
18- 21 F4.2 mag e_BMAG Uncertainty in BMAG (2)
23- 28 F6.2 mag KMAG Derived absolute K band magnitude (1)
30- 33 F4.2 mag e_KMAG Uncertainty in KMAG (2)
35- 38 I4 km/s PRV Peculiar radial velocity (3)
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Note (1): Galaxies for which no photometric data were available were
arbitrarily assigned an absolute magnitude of -10. Their listed
uncertainties, which are not used in any calculations, show the
effect of distance uncertainties alone.
Note (2): Takes into account distance and photometric errors.
Note (3): Relative to the best-fit isotropic expansion.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 01-Sep-2005