A New I-Band Tully-Fisher Relation for the Fornax Cluster: Implication for the Fornax Distance and Local Supercluster Velocity Field

1996 ◽  
Vol 463 ◽  
pp. 60 ◽  
Author(s):  
M. Bureau ◽  
J. R. Mould ◽  
L. Staveley-Smith
Keyword(s):  
Velocity Field ◽  
Local Supercluster ◽  
Fisher Relation ◽  
Fornax Cluster

Local Supercluster Velocity Field from Unbiased B-band T-F Distances

1989 ◽  
pp. 453-455
Author(s):  
L. Bottinelli ◽  
L. Gouguenheim ◽  
P. Teerikorpi
Keyword(s):  
Velocity Field ◽  
Local Supercluster

Dipole bulk velocity based on new data sample of galaxies from the catalogue 2MFGC

2017 ◽  
Vol 7 (1-2) ◽  
pp. 6-11 ◽  
Author(s):  
M. Vasylenko ◽  
Yu. Kudrya
Keyword(s):  
Velocity Field ◽  
Microwave Radiation ◽  
Large Scale ◽  
Spiral Galaxies ◽  
Dipole Component ◽  
Bulk Motion ◽  
Sky Survey ◽  
Extended Sources ◽  
Fisher Relation ◽  
Cosmic Microwave Radiation

We use the 2MFGC catalogue for investigation of large-scale flows on the basis of the Tully-Fisher relation (TFR). The catalogue contains 18020 galaxies selected from the extended sources of the infrared sky survey 2MASS XSC. The majority of galaxies in the catalogue are spiral galaxies of late morphological types whose discs are visible almost from the edge. For more than a decade of the catalogue usage, the number of galaxies in HyperLEDA database with the measured radial velocities and rotational velocities (that are necessary to construct the TFR) has been increased by about 17%. In this paper, an updated working sample of 2MFGC galaxies is presented and earlier results are revised taking into account new data. We have confined ourselves to comparison of only the "old" and "new" parameters of the dipole component of the velocity field. The dipole bulk motion of galaxies of this sample with respect to cosmic microwave radiation is characterised by a velocity of V=264±36 km/s in the direction l=308°±8°, b=-16°±6°.

The velocity field in the local supercluster

1982 ◽  
Vol 258 ◽  
pp. 64 ◽  
Author(s):  
M. Aaronson ◽  
J. Huchra ◽  
J. Mould ◽  
P. L. Schechter ◽  
R. B. Tully
Keyword(s):  
Velocity Field ◽  
Local Supercluster

The Kinematics of the Local Supercluster

1983 ◽  
Vol 104 ◽  
pp. 241-247
Author(s):  
J. R. Mould ◽  
P. L. Schechter ◽  
M. Aaronson ◽  
R. B. Tully ◽  
J. P. Huchra
Keyword(s):  
Spatial Distribution ◽  
Velocity Field ◽  
Thermal Noise ◽  
Flow Model ◽  
Microwave Background ◽  
Astrophysical Journal ◽  
Local Supercluster ◽  
Nearby Galaxies ◽  
Distance Indicator ◽  
A Current

The spatial distribution of galaxies in the Local Supercluster, as described at this meeting, together with the measured anisotropy in the microwave background suggest that there exist significant deviations from a uniform Hubble flow in the velocity field of galaxies within a few thousand km/s. In principle, it is not too hard to improve on the uniform flow model: one simply needs to examine the spatial distribution of the radial velocity residuals for many nearby galaxies. In practice, the problem is non-trivial because of the coupling of velocity and distance, and the lack of a distance indicator of high precision, and the “thermal” noise in the velocity field. Our recent efforts in this direction are described in more detail in a paper in a current Astrophysical Journal (Aaronson et al. 1982a).

scholarly journals DENIS Observations of Multibeam Galaxies in the Zone of Avoidance

1999 ◽  
Vol 16 (1) ◽  
pp. 42-47 ◽  
Author(s):  
A. Schröder ◽  
R. C. Kraan-Korteweg ◽  
G. A. Mamon
Keyword(s):  
Velocity Field ◽  
Large Scale ◽  
Near Infrared ◽  
Milky Way ◽  
Selection Effects ◽  
Galaxy Distribution ◽  
The Galaxy ◽  
Multi Wavelength ◽  
Zone Of Avoidance ◽  
Fisher Relation

AbstractRoughly 25% of the optical extragalactic sky is obscured by the dust and stars of our Milky Way. Dynamically important structures might still lie hidden in this zone. Various surveys are presently being employed to uncover the galaxy distribution in the Zone of Avoidance (ZOA), but all suffer from (different) limitations and selection effects. We illustrate the promise of using a multi-wavelength approach for extragalactic large-scale studies behind the ZOA, i.e. a combination of three surveys, optical, systematic blind HI and near-infrared (NIR), which will allow the mapping of the peculiar velocity field in the ZOA through the NIR Tully–Fisher relation. In particular, we present here the results of cross-identifying HI-detected galaxies with the DENIS NIR survey, and the use of NIR colours to determine foreground extinctions.

scholarly journals Large Peculiar Velocities in the Hydra Centaurus Supercluster

1988 ◽  
Vol 130 ◽  
pp. 185-189
Author(s):  
M. Aaronson ◽  
G.D. Bothun ◽  
K.G. Budge ◽  
J.A. Dawe ◽  
R.J. Dickens ◽  
...  
Keyword(s):  
Velocity Field ◽  
Data Collection ◽  
Large Scale ◽  
Galactic Plane ◽  
Systematic Errors ◽  
Preliminary Results ◽  
Peculiar Velocities ◽  
Upper Limit ◽  
Fisher Relation

Six clusters forming part of the Hydra-Cen Supercluster and its extension on the opposite side of the galactic plane are under study at 21 cm with the Parkes radiotelescope. The infrared Tully-Fisher relation is used to determine the relative distances of the clusters. These clusters exhibit significant and generally positive peculiar velocities ranging from essentially zero for the Hydra cluster to as much as 1000 km/sec for the Pavo and Centaurus clusters. An upper limit of 500 km/sec was previously found in the study of clusters accessible from Arecibo. Data collection is not yet complete, however, and is further subject to unstudied systematic errors due to present reliance on photographic galaxy diameters. Nevertheless, these preliminary results support the notion of a large scale (and presumably gravitationally) disturbed velocity field in the second and third quadrants of the supergalactic plane.

The tidal velocity field in the Local Supercluster

1986 ◽  
Vol 307 ◽  
pp. 91 ◽  
Author(s):  
P. B. Lilje ◽  
A. Yahil ◽  
B. J. T. Jones
Keyword(s):  
Velocity Field ◽  
Local Supercluster ◽  
Tidal Velocity
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