J/MNRAS/465/3879 Cygnus OB1 association stars radial velocities (Costado+, 2017)
Analysis of the kinematic structure of the Cygnus OB1 association.
Costado M.T., Alfaro E.J., Gonzalez M., Sampedro L.
<Mon. Not. R. Astron. Soc. 465, 3879 (2017)>
=2017MNRAS.465.3879C 2017MNRAS.465.3879C (SIMBAD/NED BibCode)
ADC_Keywords: Associations, stellar ; Radial velocities
Keywords: techniques: radial velocities - stars: formation -
stars: kinematics and dynamics -
open clusters and associations: general -
Abstract:
The main objective of this study is the characterization of the
velocity field in the Cygnus OB1 association using the radial velocity
data currently available in the literature. This association is part
of a larger star-forming complex located in the direction of the
Cygnus region, but whose main subsystems may be distributed at
different distances from the sun. We have collected radial velocity
data for more than 300 stars in the area of 5x5 square degrees
centred on the Cygnus OB1 association. We present the results of a
kinematic clustering analysis in the subspace of the phase space
formed by angular coordinates and radial velocity using two
independent methodologies. We have found evidence of structure in the
phase space with the detection of two main groups, corresponding to
different radial velocity and distance values, belonging to the
association, and associated with two main shells defined by the Halpha
emission. A third grouping well separated from the other two in
velocity appears to occupy the whole region associated with what has
been called "common shell".
Description:
The compiled data of each star. The columns RV + catalogue number are
taken from VizieR (references below) and the column WEBDA is the
median value calculated using all measurements taken from WEBDA
database (references below for each cluster). We also show our
identification number, the Equatorial and Galactic coordinates, HD
number, and the RV median value, which we will use in the kinematic
analysis, and the name of the cluster to which the star belongs.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 114 314 Radial velocity data for 314 stars in the
Cygnus OB1 association
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID [1/314] Our identification number
5- 13 F9.5 deg RAdeg Right ascension (J2000)
15- 22 F8.5 deg DEdeg Declination (J2000)
24- 31 F8.5 deg GLON Galactic longitude (J2000)
33- 42 F10.7 deg GLAT Galactic latitude (J2000)
44- 50 I7 --- HD ?=-999999 HD number
52- 58 F7.2 km/s RV1 ?=-999.99 Radial velocity taken from
Barbier-Brossat & Figon (2000A&AS..142..217B 2000A&AS..142..217B,
Cat. III/213)
60- 66 F7.2 km/s RV2 ?=-999.99 Radial velocity taken from
Abt & Biggs (1972, Cat. III/4) (1)
68- 74 F7.2 km/s RV3 ?=-999.99 Radial velocity taken from Wilson
(1953, Cat. III/21) (2)
76- 82 F7.2 km/s RV4 ?=-999.99 Radial velocity taken from
Fehrenbach et al. (1996BICDS..48...11F 1996BICDS..48...11F,
Cat. III/192)
84- 90 F7.2 km/s RV5 ?=-999.99 Radial velocity taken from Evans
(1979IAUS...30...57E 1979IAUS...30...57E)
92- 98 F7.2 km/s RVWEBDA ?=-999.99 Radial velocity taken from each
cluster in the WEBDA database (3)
100-106 F7.2 km/s RVmedian ?=-999.99 Median value taking into account all
RV data available
108-114 A7 --- Cluster Name of the cluster hosting the star, if any
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Note (1): Abt H.A., Biggs E.S., 1972, Bibliography of Stellar Radial Velocities
(New York: Latham Process Corp.)
Note (2): Wilson R. E., 1953, General Catalogue of Stellar Radial Velocities
(Washington, DC: Carnegie Inst.)
Note (3): References in the WEBDA database:
NGC6871 :
Plaskett J.S., 1924, Publ. Dom. Astrophys. Obs., 2, 285 (1924PDAO....2..285P 1924PDAO....2..285P)
Campbell W.W., Moore J.H., 1928, Publ. Lick. Obs., 16, 1
Hayford D., 1932, Lick Obs. Bull., 16, 53 (1932LicOB..16...53H 1932LicOB..16...53H)
Petrie R. M., Pearce J. A., 1961, Publ. Dom. Astrophys. Obs., 12, 1
Batten A. H., 1965AJ.....70..318B 1965AJ.....70..318B
Crampton D., Fisher W.A., 1974, Publ. Dom. Astrophys. Obs., 14, 283
(1974PDAO...14..283C 1974PDAO...14..283C)
Conti P.S., Leep E.M., Lorre J.J., 1977, AJ, 214, 759
Southworth J., Maxted P.F.L., Samlley B., 2004, MNRAS, 351, 1277
(2004MNRAS.351.1277S 2004MNRAS.351.1277S)
NGC6913 :
Hayford D., 1932, Lick Obs. Bull., 16, 53, (1932LicOB..16...53H 1932LicOB..16...53H)
Liu T., Janes K.A., Bania T. M., 1989, AJ, 98, 626, (1989AJ.....98..626L 1989AJ.....98..626L)
Liu T., Janes K.A., Bania T. M., 1991, AJ, 102, 1103, (1991AJ....102.1103L 1991AJ....102.1103L)
Gluskova E.V., Rastorguev A. S., 1991, Soviet Astron. Lett., 17, 13
Boeche C. et al., 2004, A&A, 415, 145 (Cat. J/A+A/415/145)
IC4996 :
Hayford D., 1932, Lick Obs. Bull., 16, 53 (1932LicOB..16...53H 1932LicOB..16...53H)
Delgado A. J., Miranda L.F., Alfaro E. J., 1999, AJ, 118, 1759
(1999AJ....118.1759D 1999AJ....118.1759D)
Berkeley 86 :
Forbes D. et al., 1992, AJ, 103, 916 (1992AJ....103..916F 1992AJ....103..916F)
Huang W., Gies D. R., 2006, ApJ, 648, 580 (Cat. J/ApJ/648/580)
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Acknowledgements:
M. Teresa Costado, mteresa(at)iaa.es
(End) M. Teresa Costado [IAA-CSIC, Spain], Patricia Vannier [CDS] 18-Nov-2016