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J/AJ/115/2397 Stars in the solar region (Eggen 1998)
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Kinematics and metallicity of stars in the solar region.
Eggen O.J.
<Astron. J. 115, 2397 (1998)>
=1998AJ....115.2397E (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, nearby ; Photometry ; Abundances, [Fe/H] ;
Space velocities ; Radial velocities ; Parallaxes, trigonometric
Keywords: stars: abundances - stars: kinematics
Abstract:
Several samples of nearby stars with the most accurate astrometric and
photometric parameters are searched for clues to their evolutionary
history. The main samples are (1) the main-sequence stars with b-y
between 0.29 and 0.59mag (F3 to K1) in the Yale parallax catalog, (2)
a group of high-velocity subgiants studied spectroscopically by Ryan &
Lambert (1995AJ....109.2068R), and (3) high-velocity main-sequence
stars in the extensive investigation by Norris, Bessel, & Pickles
(1985ApJS...58..463N). The major conclusions are as follows: (1) The
oldest stars (halo), t>=10-12Gyr, have V-velocities (in the direction
of Galactic rotation and referred to the Sun) in the range from about
-50 to -800km/s and have a heavy-element abundance [Fe/H] of less than
about -0.8dex. The age range of these objects depends on our knowledge
of globular cluster ages, but if age is correlated with V-velocity,
the youngest may be M22 and M28 (V~-50km/s) and the oldest NGC 3201
(V~-500km/s) and assorted field stars. (2) The old disk population
covers the large age range from about 2Gyr (Hyades, NGC 752) to 10 or
12Gyr (Arcturus group, 47 Tuc), but the lag (V) velocity is restricted
to less than about 120km/s and [Fe/H]>=-0.8 or -0.9dex. The
[Fe/H]~-0.8dex division between halo and old disk, near t~10-12Gyr, is
marked by a change in the character of the CN index (Cm) and of the
blanketing parameter K of the DDO photometry. (3) The young disk
population, t<2Gyr, is confined exclusively to a well-defined area of
the (U, V) velocity plane. The age separating young and old disk stars
is also that separating giant evolution of the Hyades (near
main-sequence luminosity) and M67 (degenerate helium cores and a large
luminosity rise) kinds. The two disk populations are also separated by
such indexes as the g-index of Geveva photometry. There appears to be
no obvious need to invoke exogeneous influences to understand the
motion and heavy-element abundance distributions of the best-observed
stars near the Sun. Individual stars of special interest include the
parallax star HD 55575, which may be an equal-component binary, and
the high-velocity star HD 220127, with a well-determined space
velocity near 1000km/s.
Description:
The majority of the stars discussed here have:
1: Meridian circle proper motions (e.g. Carlsberg Consortium, 1994,
Carlsberg Meridian Circle Catalogue La Palma, No. 8)
2: Well-determined radial velocities, mainly from
Sandage & Fouts (1987AJ.....93...74S),
Carney et al. (1994, Cat. <J/AJ/107/2240>)
Carney & Latham (1986AJ.....92...60C), Bond (1980ApJS...44..517B)
and NBP (Norris et al., 1985ApJS...58..463N).
3: Photometry:
a) Stroemgren and H{beta} system. Schuster & Nissen (1988A&AS...73..225S)
Schuster, Parrao & Contreras Martinez (1993, Cat. <J/A+AS/97/951>),
Olsen (1983A&AS...54...55O, 1993, Cat. <J/A+AS/102/89>,
1994, Cat. <J/A+AS/104/429>),
Anthony-Twarog, ATT (1994, Cat. <J/AJ/107/1577>).
b) Modified Stroemgren system. Eggen (1982ApJS...50..221E and unpublished)
c) RI system. Eggen (1982ApJS...50..221E and unpublished),
NBP (Norris et al., 1985ApJS...58..463N).
d) Geneva system. (Rufener, 1988, Cat. <II/169>)
e) DDO system. McClure & Forrested (1981, Cat. <II/80>),
Dean (1981SAAOC...6...10D), NBP (Norris et al., 1985ApJS...58..463N).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 107 731 Parallax stars
note1.dat 120 126 Individual notes to table1.dat
table2.dat 77 13 Members of the HR 1614 Supercluster and Group
table3.dat 118 12 Main-sequence members of the Arcturus group
table4.dat 70 13 Equal-components binaries
table5.dat 25 71 Comparison with P[Fe/H] from Edvardsson et al.,
1993, Cat. <J/A+A/275/101>
table6.dat 98 44 NBP (Norris et al., 1985ApJS...58..463N) dwarfs
table8.dat 38 73 Geneva photometry of stars with P[Fe/H]>0
table10.dat 167 24 Ryan & Lambert (1995AJ....109.2068R) sample
table11.dat 172 32 NBP (Norris et al., 1985ApJS...58..463N) sample
of subgiants
table12.dat 73 20 Luminosity of evolved stars in Halo groups
table14.dat 34 35 DDO photometry of cluster stars
table15.dat 23 87 Values of (C_m_)_0_ and P[Fe/H] for red giants in
the NBP (Norris et al., 1985ApJS...58..463N) sample
table17.dat 55 63 Stars from a large sample of dwarfs that lie in an
otherwise vacant region of the
(P[Fe/H], V-velocity)-plane
table18.dat 90 15 Stars from table6 with Stroemgren and H{beta}
photometry and improved proper motion
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See also:
I/238 : Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
II/80 : A catalogue of homogeneous photometry of bright stars in the DDO
system (McClure+ 1981)
J/AJ/107/2184 : FK giants and supergiants photometry (Eggen 1994)
J/AJ/107/594 : Evolved GK stars near the Sun. II. (Eggen 1994)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name HD or BD name
15- 23 A9 --- GCTP Yale Trigonometric Parallaxes (Cat. <I/238>) name
25- 29 F5.3 mag b-y Adopted b-y colour index
31- 35 F5.3 mag m1 Adopted m_1_ metallicity index
37- 41 F5.2 --- P[Fe/H] ? P[Fe/H] index (1)
42 A1 --- u_P[Fe/H] Uncertainty flag on P[Fe/H]
43- 47 F5.2 mag VMAG ? Absolute V magnitude (1)
48 A1 --- n_VMAG [)] Uncertainty flag on VMAG
50- 52 I3 mas plxp ? Photometric parallax
54- 56 I3 mas plxt ? Trigonometric parallax from GCTP (Cat. <I/238>)
57 A1 --- n_plxt [)] Uncertainty flag on plxt
59- 63 I5 mas/yr pmRA ? Proper motion in right ascension
65- 69 I5 mas/yr pmDE ? Proper motion in declination
71- 76 F6.1 km/s RV ? Radial velocity
77 A1 --- n_RV Uncertainty flag on RV
79- 82 I4 km/s Uvel ? U velocity (+ away from the Galactic center)
84- 87 I4 km/s Vvel ? V velocity (+ in direction of Galactic rotation)
89- 92 I4 km/s Wvel ? W velocity (+ toward the north Galactic pole)
94-100 A7 --- SpType Spectral type from the YPC
102-107 A6 --- HR ? HR number (Cat. <V/50>)
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Note (1): P[Fe/H] derived from the Stroemgren photometry with the calibrations
published by Schuster & Nissen (1989A&AS...73..225S)
VMAG derived from the Stroemgren photometry with the calibrations
published by Nissen & Schuster (1991A&A...251..457N)
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Byte-by-byte Description of file: note1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name HD number
15-120 A106 --- Note Text of the note
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1 A1 --- Member [SG] S: supercluster, G: group
3- 15 A13 --- Name Star name
17- 20 F4.2 mag V0 Dereddened V magnitude
22- 26 F5.3 mag (b-y)0 Dereddened b-y colour index
28- 32 F5.3 mag (m1)0 Dereddened m_1_ index
34- 38 F5.3 mag (C1)0 Dereddened C_1_ index
40- 44 F5.2 Sun P[Fe/H] P[Fe/H] index (1)
45 A1 --- n_P[Fe/H] [)] Uncertainty flag on P[Fe/H]
47- 51 F5.2 mag VMAGp Photometric absolute V magnitude
53- 57 F5.2 mag VMAGC Cluster absolute V magnitude
59- 63 F5.2 mag DVMAG Photometric minus Cluster absolute
V magnitude (1)
65- 69 F5.3 mag (42-45) ? (42-45) colour index
71- 75 F5.3 mag Cm ? C_m_ colour index
77 A1 --- Note [*] *: individual note (2)
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Note (1): Mean P[Fe/H]=+ 0.10+/-0.06, Mean {DELTA}VMAG=+ 0.03+/-0.15
Note (2): *: HD 17215 is a close binary. Corrections made for faint companion.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Star name
15- 19 F5.2 mag V0 Dereddened V magnitude
21- 25 F5.3 mag (b-y)0 Dereddened b-y colour index
27- 31 F5.3 mag (m1)0 Dereddened m_1_ metallicity index
33- 37 F5.3 mag (C1)0 Dereddened C_1_ index
39- 43 F5.2 Sun P[Fe/H] P[Fe/H] index (1)
45- 49 F5.2 mag VMAGp Photometric absolute V magnitude
51- 55 F5.2 mag VMAGC Cluster absolute V magnitude
57- 61 F5.2 mag DVMAG Photometric minus Cluster absolute
V magnitude (1)
63- 66 I4 mas/yr pmRA Proper motion in right ascension
68- 72 I5 mas/yr pmDE Proper motion in declination
74- 79 F6.2 km/s RV Radial velocity
81- 84 F4.2 mag MOD Distance modulus
86- 90 F5.1 pc R Galactic radial distance from the Sun
92- 94 I3 km/s Uvel U velocity
96-101 F6.1 km/s Vvel V velocity
103-106 I4 km/s Wvel W velocity
108-112 F5.3 mag (42-45) ? (42-45) colour index
114-118 F5.3 mag Cm ? C_m_ colour index
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Note (1): Mean P[Fe/H]=-0.67+/-0.09, Mean DVMAG=-0.05+/-0.23
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name HD number
15- 23 A9 --- OtherName Other name
25- 31 F7.3 yr rho Period of the binary star orbit
33- 38 F6.4 arcsec a Semi-major axis of the orbit
39 A1 --- n_a [)] Uncertainty flag on a
41- 44 F4.2 solMass Mass Total mass
46- 49 F4.2 mag MOD Distance modulus
51- 55 F5.2 [solMass] logM Mass
57- 61 F5.2 mag VMAG Absolute V magnitude
63- 67 F5.2 Sun P[Fe/H] P[Fe/H] index
69- 70 I2 --- Ref References (1)
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Note (1): 1: Van den Bos, 1956, Union Obs. Circ., 4, 342
2: van den Bos, 1937, Union Obs. Circ., 6, 279
3: Finsen, 1963, Republic. Obs. Circ., 7, 38
4: Finsen, 1970, IAU Circ. Inf., No. 52
5: Heintz, 1974AJ.....79..819H, with a adjusted to recent
speckle results
6: Eggen, 1986AJ.....92..910E
7: Eggen, 1964AJ.....69..570E
8: Hartkopf, Mason & McAlister, 1996, Cat. <J/AJ/111/370>
9: Heintz, 1965VeMun...7...28H
10: Cester, 1962MmSAI..33..331C
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name HD number
15- 19 F5.2 Sun P[Fe/H] P[Fe/H] index
21- 25 F5.2 Sun [Fe/H] ! [Fe/H] (1)
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Note (1): [Fe/H] is based on the spectroscopic results for FeI and FeII
of Edvardsson et al., 1993, Cat. <J/A+A/275/101>
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Star name
15- 17 I3 --- NBP NBP (Norris et al., 1985ApJS...58..463N) number
19- 24 F6.3 mag E(b-y) ? (b-y) colour excess
26- 30 F5.3 mag (b-y)0 ? Deredenned (b-y) colour index
32- 36 F5.3 mag m0 ? m_0_ index
38- 42 F5.2 Sun P[Fe/H] ? P[Fe/H] index
44- 48 F5.2 mag VMAG ? Absolute V magnitude
50- 53 F4.2 mag MOD ? Distance modulus
55- 58 I4 mas/yr pmRA ? Proper motion in right ascension
60- 63 I4 mas/yr pmDE ? Proper motion in declination
65- 70 F6.1 km/s RV ? Radial velocity
72- 75 I4 km/s Uvel ? U velocity
77- 80 I4 km/s Vvel ? V velocity
82- 85 I4 km/s Wvel ? W velocity
87- 96 A10 --- SpType Spectral type
98 A1 --- Note [abc] Notes (1)
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Note (1): a: See table1.dat
b: Treated as a member pf the Kapteyn's group in Eggen,
1996AJ....112.1595E, where the group luminosity is +3.52mag, and
this may eliminate it as a member.
c: Treated as a member pf the Kapteyn's group in Eggen,
1996AJ....112.1595E, where the group luminosity is +5.28mag is an
excellent agreement with the photometric value derived here.
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Table 7: High-C_m_ stars
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HD P[Fe/H] (41-45) C_m_ U V W
km/s km/s km/s
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99491 +0.17 0.790 0.224 +54 -11 -9
99492 +0.14 1.044 0.334
190249 +0.26 0.752 0.214 +44 -10 -12
214759 +0.09 0.798 0.216 +43 -10 0
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name HD number
15- 19 F5.3 mag B2-V1 B2-V1 colour index
21- 25 F5.3 mag gmag g magnitude
27- 31 A5 --- Pop Population (Young, Old)
33- 38 F6.3 mag m2 m_2_ metallicity index
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Table 9: Old disk clusters and Groups
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Name U V W [Fe/H] Age Ref
km/s km/s km/s Gyr
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47 Tucanae +66+/-34 -68+/-29 +41+/-23 -0.70 12 1
M71 -66+/-16 -71+/-11 -10+/-14 -0.65 12 1
Arcturus group -110 -0.60 10 2
HR 1614 supercluster -6+/-2 -60+/-2 -11+/-2 +0.10 8-10 2
M67 +30+/-5 -32+/-4 -23+/-5 -0.09 5 3
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References: 1: Cudworth & Hanson, 1993AJ....105..168C
2: Eggen, 1996AJ....112.1595E
3: Carraro & Chiosi, 1994A&A...288..751C
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Byte-by-byte Description of file: table10.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Sample Sample (NBP, MFF)
5- 17 A13 --- Name Star name
19- 23 F5.3 mag R-I R-I colour index
25- 29 F5.3 mag (45-48) (45-48) colour index
31- 35 F5.3 mag (42-45) (42-45) colour index
37- 42 F6.3 mag (41-42) (41-42) colour index
44- 49 F6.3 mag (38-42) (38-42) colour index
51- 55 F5.3 mag E(b-y) (b-y) colour excess
57- 62 F6.3 mag (Cm)0 Deredenned C_m_ index
64- 68 F5.3 mag D(45-48)0 Deredenned {Delta}(45-48) colour index
70- 74 F5.2 mag Vamg Absolute V magnitude
76- 79 I4 mas/yr pmRA ? Proper motion in right ascension
81- 84 I4 mas/yr pmDE ? Proper motion in declination
86- 91 F6.1 km/s RV Radial velocity
93- 97 F5.3 mag (R-I)0 Deredenned R-I colour index
99-103 F5.3 mag (45-48)0 Deredenned (45-48) colour index
105-110 F6.3 mag (38-42)0 Deredenned (38-42) colour index
112-116 F5.2 Sun P[Fe/H]m1 ? P[Fe/H] from m_1_ index
118-122 F5.2 Sun P[Fe/H]38 ? P[Fe/H] from (38-42) index
124-128 F5.2 Sun [Fe/H] Metallicity
130-134 F5.2 mag MOD Distance modulus
136-141 F6.1 km/s Uvel ? U velocity
143-148 F6.1 km/s Vvel ? V velocity
150-155 F6.1 km/s Wvel ? W velocity
157-167 A11 --- SpType Spectral type
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Byte-by-byte Description of file: table11.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Star name
15- 19 F5.3 mag R-I R-I colour index
21- 25 F5.3 mag (45-48) (45-48) colour index
27- 31 F5.3 mag (42-45) (42-45) colour index
33- 37 F5.3 mag (41-42) (41-42) colour index
39- 44 F6.3 mag (38-42) (38-42) colour index
46- 50 F5.3 mag E(b-y) (b-y) colour excess
52- 57 F6.3 mag (Cm)0 Deredenned C_m_ index
59- 63 F5.3 mag D(45-48)0 Deredenned {Delta}(45-48) colour index
65- 69 F5.3 mag [C1] ? [C_1_] index
71- 75 F5.2 mag VMAGDDO DDO absolute V magnitude
77- 81 F5.2 mag VMAG[C1] ? [C_1_] absolute V magnitude
83- 85 I3 --- NBP NBP ((Norris et al., 1985ApJS...58..463N)
number
87- 91 F5.3 mag (R-I)0 ? Deredenned R-I colour index
93- 97 F5.3 mag (45-48)0 ? Deredenned (45-48) colour index
99-104 F6.3 mag (38-42)0 ? Deredenned (38-42) colour index
106-110 F5.2 Sun P[Fe/H]m1 ? P[Fe/H] from m_1_ index
111 A1 --- n_P[Fe/H]m1 [)] Uncertainty flag on P[Fe/H]m1
113-117 F5.2 Sun P[Fe/H]DDO ? DDO P[Fe/H]
118 A1 --- n_P[Fe/H]DDO [)] Uncertainty flag on P[Fe/H]DDO
120-123 F4.2 mag MOD ? Distance modulus
125-128 I4 mas/yr pmRA ? Proper motion in right ascension
130-133 I4 mas/yr pmDE ? Proper motion in declination
135-140 F6.1 km/s RV ? Radial velocity
142-145 I4 km/s Uvel ? U velocity
146 A1 --- n_Uvel [)] Uncertainty flag on Uvel
148-152 I5 km/s Vvel ? V velocity
153 A1 --- n_Vvel [)] Uncertainty flag on Vvel
155-158 I4 km/s Wvel ? W velocity
159 A1 --- n_Wvel [)] Uncertainty flag on Wvel
161-170 A10 --- SpType Spectral type
172 A1 --- Note [abcd*] Note (1)
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Note (1): a: Included as a member of the Ross 451 group in Eggen
1996AJ....112.2661E, where the group luminosity is +1.3mag.
b: A new member of the Arcturus group.
c: Member of the Ross 451 group.
d: Space velocity discussed in the text.
*: HD 209069 in table11a, HD 208069 in table11b
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Byte-by-byte Description of file: table12.dat
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Bytes Format Units Label Explanations
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1 A1 --- Group [KR] K: Kapteyn's star group
R: Ross 451 group
3- 15 A13 --- Name Star name
17- 21 F5.3 mag E(b-y) (b-y) colour excess
23- 27 F5.3 mag (R-I)0 ? Deredenned R-I colour index
29- 33 F5.3 mag D(45-48)0 ? Deredenned {Delta}(45-48) calculated from
[C_1_] index
34 A1 --- n_D(45-48)0 [)d] Note on D(45-48)0 (1)
36- 41 F6.3 mag Cm0 ? Deredenned C_m_ index
42 A1 --- n_Cm0 [d] Note on Cm0 (1)
44- 48 F5.2 mag VMAGp Photometric absolute V magnitude
49 A1 --- n_VMAGp [)] Uncertainty flag on VMAGp
51- 55 F5.2 mag VMAGC Cluster absolute V magnitude
57- 61 F5.2 mag DVMAG ? Photometric minus Cluster absolute
V magnitude
62 A1 --- n_DVMAG [)e] Note on DVMAG (2)
64- 68 F5.2 mag VMAGA ? ATT (Cat. <J/AJ/107/1577>) absolute
V magnitude
70 A1 --- Note [abcfghij] Individual note (3)
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Note (1): d: See table 10
): Uncertainty flag
Note (2): Mean {Delta}VMAG=+0.02+/-0.25
e: Apparent non-member of group
): Uncertainty flag
Note (3): a: V_0_=7.99, (b-y)_0_=0.424, (m_1_)_0_=0.109, (C_1_)_0_=0.497
b: V_0_=9.57, (b-y)_0_=0.486, (m_1_)_0_=0.119, (C_1_)_0_=0.472
c: V_0_=9.97, (b-y)_0_=0.397, (m_1_)_0_=0.097, (C_1_)_0_=0.532
f: V_0_=9.72, (b-y)_0_=0.345, (m_1_)_0_=0.064, (C_1_)_0_=0.315
g: V_0_=9.30, (b-y)_0_=0.310, (m_1_)_0_=0.079, (C_1_)_0_=0.690
h: V_0_=9.67, (b-y)_0_=0.333, (m_1_)_0_=0.065, (C_1_)_0_=0.285
i: Insufficient photometry available; ATT luminosity is adopted
j: V_0_=9.84, (b-y)_0_=0.325, (m_1_)_0_=0.068, (C_1_)_0_=0.322
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Table 13: Space motions from Cudworth & Hanson (1993AJ....105..168C)
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Cluster pmRA, pmDE RV E(B-V) Modulus U V W [Fe/H]
mas/yr km/s km/s km/s km/s
-----------------------------------------------------------------------------
M92 -46, -6 -100.5 0.02 14.69 +38+\-66 -209+\-35 +85+\-37 -2.25
M15 -3, -42 -107.1 0.12 14.93 -168+\-45 -194+\-29 +85+\-42 -2.00
M22 86, -51 -148.3 0.32 12.50 +163+\- 5 -39+\-19 -128+\-23 -1.80
M28 3, -34 -15.9 0.49 13.54 -20+\- 3 -68+\-21 -45+\-15 -1.28
-----------------------------------------------------------------------------
Byte-by-byte Description of file: table14.dat
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Bytes Format Units Label Explanations
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1 A1 --- Origin [OH] O: Old disk, H: halo
3- 10 A8 --- Cluster Cluster name
12- 15 F4.2 mag E(B-V) Cluster B-V colour excess
17- 21 A5 --- Star Star number in the cluster
23- 28 F6.3 mag Cm0 Deredenned C_m_ index of the star
30- 34 F5.3 mag (42-48) (42-48) colour index of the star
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Byte-by-byte Description of file: table15.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- NBP NBP (Norris et al., 1985ApJS...58..463N) star
number
5- 9 F5.3 mag (42-48)0 Deredenned (42-48) colour index
11- 15 F5.2 Sun P[Fe/H] P[Fe/H] index
17- 22 F6.3 mag Cm0 Deredenned C_m_ index
23 A1 --- Note [)] Uncertainty flag for all the star data
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Table 16:: Correlation of total velocity and dispersion
----------------------------------------------------------------------------
Group U V W e_U e_W e_(U,V) Vtot Vtot/4 Age (Gyr)
----------------------------------------------------------------------------
HR 1614 +5 -58 -6 17 14 15.5 60.5 15 8-10
Arcturus -9 -110 -9 36 36 36 111 28 10
Kapteyn's star +13 -289 -16 82 67 74.5 289 72 12
Ross 451 -89 -346 -37 104 77 90 358 90 12
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Byte-by-byte Description of file: table17.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Star name
15- 16 I2 h RAh Right ascension (B1950.0)
18- 19 I2 min RAm Right ascension (B1950.0)
21 A1 --- DE- Declination sign
22- 23 I2 deg DEd Declination (B1950.0)
25- 26 I2 arcmin DEm Declination (B1950.0)
28- 32 F5.2 mag Vmag V magnitude
34- 37 F4.2 mag B-V B-V colour index
39- 42 F4.2 mag E(B-V) B-V colour excess
44- 48 F5.2 Sun P[Fe/H] P[Fe/H] index
50- 53 I4 km/s Vvel V velocity
55 I1 --- Ref [1/2] References (1)
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Note (1): References for E(B-V), P[Fe/H] and Vvel values
1: Carney et al., 1994, Cat. <J/AJ/107/2240>
2: Sandage & Fouts, 1987AJ.....93...74S
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Byte-by-byte Description of file: table18.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Star name
15- 20 F6.3 mag E(b-y) b-y colour excess
21 A1 --- n_E(b-y) [)] Uncertainty flag on E(b-y)
23- 27 F5.3 mag (b-y)0 Deredenned b-y colour index
28 A1 --- n_(b-y)0 [)] Uncertainty flag on (b-y)0
30- 34 F5.3 mag M10 Deredenned M_1_ index
35 A1 --- n_M10 [)] Uncertainty flag on M10
37- 41 F5.2 Sun P[Fe/H] P[Fe/H] index
43- 47 F5.2 mag VMAG Absolute V magnitude
49- 52 F4.2 mag Modulus Distance modulus
54- 57 I4 mas/yr pmRA Proper motion in right ascension
59- 62 I4 mas/yr pmDE Proper motion in declination
64- 69 F6.1 km/s RV Radial velocity
71- 74 I4 km/s Uvel U velocity
76- 79 I4 km/s Vvel V velocity
81- 84 I4 km/s Wvel W velocity
86- 87 A2 --- S [OK] OK: star removed from the zone of avoidance
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History: From AJ electronic version
Some corrections were made in table1.dat on 26-Jan-1999
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(End) James Marcout, Patricia Bauer [CDS] 12-Aug-1998