J/A+A/310/353 Redshift of 97 spirals (Guthrie+, 1996)
Redshift periodicity in the Local Supercluster
Guthrie B.N.G., Napier W.M.
<Astron. Astrophys. 310, 353 (1996)>
=1996A&A...310..353G 1996A&A...310..353G (SIMBAD/NED BibCode)
ADC_Keywords: Redshifts ; Positional data
Keywords: galaxies: distances and redshifts - galaxies: spiral -
radio lines: galaxies
Description:
Persistent claims have been made over the last ∼15yr that
extragalactic redshifts, when corrected for the Sun's motion around
the Galactic centre, occur in multiples of ∼24 or ∼36km/s. A recent
investigation by us of 40 spiral galaxies out to 1000km/s, with
accurately measured redshifts, gave evidence of a periodicity
∼37.2-37.7km/s. Here we extend our enquiry out to the edge of the
Local Super cluster (∼2600km/s), applying a simple and robust
procedure to a total of 97 accurately determined redshifts. We find
that, when corrected for related vectors close to recent estimates of
the Sun's galactocentric motion, the redshifts of spirals are strongly
periodic (P∼37.6km/s). The formal confidence level of the result is
extremely high, and the signal is seen independently with different
radio telescopes. We also examine a further sample of 117 spirals
observed with the 300-foot Green Bank telescope alone. The periodicity
phenomenon appears strongest for the galaxies linked by group
membership, but phase coherence probably holds over large regions of
the Local Supercluster.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 41 97 Sample of 97 spirals with accurate redshifts
table8 41 117 Further sample of 117 spirals
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Byte-by-byte Description of file: table2 table8
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Galaxy designation (NGC, IC or UGC)
11- 13 A3 --- Type Numerical type
16- 19 I4 km/s cz Heliocentric redshift from BGFP catalogue (1)
22- 27 F6.2 deg GLON Galactic longitude
29- 34 F6.2 deg GLAT Galactic latitude
38- 41 I4 km/s zgal Galactic redshift (2)
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Note (1): In table2, data from BGFP catalogue (Bottinelli L.,
Gouguenheim L., Fouque P. and Paturel G., 1990, A&AS, 82, 391
Catalogue VII/136).
In table8, data from Green Bank data,
Tifft W.G., Cocke W.J., 1988, ApJS, 67,1 =1988ApJS...67....1T 1988ApJS...67....1T
Tifft W.G., 1990, ApJS, 73, 603 =1990ApJS...73..603T 1990ApJS...73..603T
Tifft W.G., 1992, ApJS, 79, 183 =1992ApJS...79..183T 1992ApJS...79..183T
Note (2): calculated for the solar vector (233km/s, 93deg, 2deg) - see text
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(End) Patricia Bauer [CDS] 1996-Feb-05