J/other/Ap/49.450 Peculiar velocities of 2MFGC spirals (Karachentsev+, 2006)
Peculiar velocities of 3000 spiral galaxies from the 2MFGC Catalog.
Karachentsev I.D., Kudrya Y.N., Karachentseva V.E., Mitronova S.N.
<Astrophysics, 49, 450-461 (2006)>
=2006Ap.....49..450K 2006Ap.....49..450K
ADC_Keywords: Galaxy catalogs ; Galaxies, IR ; Photometry, infrared;
Radial velocities ; Space velocities
Keywords: galaxies: Tully-Fisher relation: large-scale motions
Abstract:
The 2MFGC catalog we have used contains 18020 galaxies selected from
among the extended objects in the 2MASS infrared sky survey as having
apparent ratios of the axes b/a<0.3. Most of them are spiral galaxies
of later morphological types whose disks are seen almost edge-on. The
individual distances to the 2724 2MFGC galaxies with known rotation
velocities and radial velocities are determined using a multiparameter
infrared Tully-Fisher relation. A list of the distances and peculiar
velocities of these galaxies is presented. The collective motion of
the 2MFGC galaxies relative to the cosmic microwave background is
characterized by a velocity V=199±37km/s in the direction
l=304±11, b=-8±8 . Our list is currently the most representative
and uniform sample for analyzing non-Hubble motions of galaxies on a
scale of ∼100Mpc.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 66 2724 Catalog of peculiar velocities of the 2MFGC galaxies
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
VII/257 : 2MASS-selected Isolated Galaxies (2MIG) (Karachentseva+, 2010)
J/other/BSAO/57.5 : 2MASS-selected Flat Galaxy Catalog, 2MFGC (Mitronova+ 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- 2MFGC Number in 2MFGC (2MASS-selected Flat Galaxy
Catalog, Mitronova et al. 2004BSAO...57....5M 2004BSAO...57....5M)
8- 13 F6.2 deg GLON Galactic longitude
15- 20 F6.2 deg GLAT Galactic latitude
22- 26 F5.2 mag Jmag Js-band fiducial elliptical Kron magnitude
(from 2MASS)
28- 30 I3 km/s W50 Width of the 21cm line, corrected for
cosmological broadening
32- 36 I5 km/s HRV Heliocentric radial velocity
38- 42 I5 km/s V3K Radial velocity calculated for the 3K-system
44- 48 I5 km/s Hr Photometric distance multiplied by H0
(r=V3K{1-(q0-1)V3K/2c}/H0)
51- 54 I4 km/s Vd Dipole component of the individual radial
velocity of the galaxy (1)
56- 60 I5 km/s Vpec Peculiar velocity of the galaxy
62- 66 I5 km/s Vp Vp=Vpec-Vd, the noise component of the
peculiar velocity
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Note (1): part of the radial velocity of the galaxy determined by the
dipole bulk motion
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Authors' addresses:
Igor Karachentsev ikar(at)sao.ru
Yurii Kudrya yukudrya(at)ukr.net
Valentina Karachentseva valkarach(at)gmail.com
Sofia Mitronova mit(at)sao.ru
(End) S. Mitronova [SAO RAS Nizhnii Arkhyz Russia], P. Vannier [CDS] 11-Mar-2011