I/266 Proper motions of fundamental stars (PMFS) (Gontcharov+, 2001)
Proper motions of fundamental stars. I. 1535 stars from the Basic FK5.
Gontcharov G.A., Andronova A.A., Titov O.A., Kornilov E.V.
<Astron. Astrophys. 365, 275 (2001)>
=2001A&A...365..222G 2001A&A...365..222G
ADC_Keywords: Meridian observations ; Proper motions ; Stars, fundamental
Keywords: astrometry - reference systems - catalogs
Abstract:
This catalog contains the proper motions of 1535 Basic FK5 stars
(Cat. I/175) derived from a direct combination of the Hipparcos
catalog with 6 compiled and 57 observational ground-based astrometric
catalogs.
We used the positions and parallaxes from the HIP (Cat. I/239),
radial velocities from the HIC (Cat. I/196) and positions from 57
observational ground-based catalogs with the mean epochs from 1939 to
1995. The differences of RA and DEC in the sense of `observational
catalog minus HIP at the observational catalog epoch' were calculated
and approximated by Legendre-Hermite-Fourier functions which then were
eliminated. Thus formed the series of star positions referred to the
ICRS for the various epochs were used to derive the new proper
motions. The proper motions from the HIP and ground-based compilations
GC, N30, FK5, N70E, CMC9 and KSV2 (Time Service Catalog 2) reduced to
the Hipparcos system were used for the calculation of mean weighted
proper motions as initial values for the first iteration of the main
procedure. The resulting proper motions keep the proper motion system
of Hipparcos (this is an advantage of the PMFS proper motions over
ground-based ones such as from the FK5) but they are individually
independent from any other proper motions, such as HIP, FK5, FK6, etc.
The advantage of the PMFS proper motions over HIP ones is that they
reflect the star motions over decades, not only in the course of the
mission. Namely, the non-linear motions of 134 stars were directly
separated into their proper motions of the barycentres and periodical
motions of the photocentres around barycentres, and the proper motions
of some other 200 stars were separated from their non-linear motions
which were implicit in large differences between the PMFS and HIP
proper motions of the stars. The stars were classified into 760 single
ones, 187 astrometrically wide pairs, 35 astrometrically close pairs
for which the results are doubtful and 551 stellar systems with 553
brighter components in the Basic FK5 for which the astrometrically
observed photocentre moves, or can move, non-linearly with an
amplitude >1 mas (including almost all known visual, photocentric and
spectroscopic orbital pairs). Thus, the PMFS proper motions are the
ones of the barycentres of these stars and stellar systems.
The median precision of the proper motion components is 0.5 mas/year
for proper motion on RA and 0.7 mas/year on DEC.
Details are can be found at http://www.geocities.com/georgegontcharov/
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 37 1535 The catalog
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See also:
I/149 : Fifth Fundamental Catalogue Part I (Fricke+ 1988)
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/242 : Pulkovo Photographic Vertical Circle (PVC96) (Gontcharov+ 1998)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP [122,118322] Hipparcos number
7- 11 I5 --- FK5 [1,1670] FK5 number
12- 19 F8.1 mas/yr pmRA* [-3629.0,4141.8] Proper motion in RA*cos(DE )
20- 23 F4.1 mas/yr e_pmRA* [0.4,2.0] Precision of pmRA*
24- 31 F8.1 mas/yr pmDE [-5811.1,3267.5] Proper motion in DE
32- 35 F4.1 mas/yr e_pmDE [0.3,2.0] Precision of pmDEC
37- 37 A1 --- Class *[ACSW] Class of stellar system
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Note on Class:
A = astrometric binary
C = astrometrically close pair (see description in the paper)
S = single star
W = astrometrically wide pair (see description in the paper)
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Acknowledgements: George Gontcharov
Reference Catalogs:
I/30 : Brorfeld Catalogue (Olsen H.J.F. 1973)
I/44 : Second Cat of Fundamental Stars (Baturina+ 1986)
I/62 : Perth 70: Positions of 24900 Stars (Hog+ 1976)
I/63 : A Catalogue of 1649 Stars Observed in Bordeaux (Mazurier+ 1977)
I/78 : SPF3 Catalogue (Loyola+ 1974)
I/82 : SPF1 Catalogue (Anguita+ 1975)
I/89 : Santiago67 Catalogue (Carrasco+ 1981)
I/97 : Perth 75 Catalogue (Nikoloff+ 1982)
I/99 : Brorfelde Meridian Catalogues 1964-1976 (Brorfelde Obs. 1968-1984)
I/100 : Results of obs with the 6-inch transit circle (Hammond+ 1927-1982)
I/126 : Carlsberg Meridian Catalogue, La Palma, Vol. 1, 2 (CMC 1984, 1985)
I/133 : Carlsberg Meridian Catalogue, La Palma, Vol. 3 (CMC 1986)
I/147 : Carlsberg Meridian Catalog, Vol. 4 (CMC4 1989)
I/168 : Perth 83 (Harwood D.N. 1990)
I/170 : Carlsberg Meridian Catalog, Vol. 5 (CMC5 1991)
I/180 : General Catalogue of Stars (GCPA 1992)
I/181 : GCPA2 (Lu 1992)
I/182 : Fourth Preliminary Catalogue of Stars (Lu 1992)
I/189 : Carlsberg Meridian Catalog, Vol. 6 (CMC6 1992)
I/205 : Carlsberg Meridian Catalog, Vol. 7 (CMC7 1993)
I/213 : Carlsberg Meridian Catalog, Vol. 8 (CMC8 1994)
(End) Patricia Bauer [CDS] 03-Oct-2000