V/103 NGP G5-M stars RV, DDO and BV photometry (Yoss+, 1997)
Radial velocities and DDO, BV photometry of Henry Draper G5-M stars
near the North Galactic Pole
Yoss K.M., Griffin R.F.
<J. Astrophys. Astron., 18, 161 (1997)>
=1997JApA...18..161Y 1997JApA...18..161Y
ADC_Keywords: Galactic pole, north ; Radial velocities ; Photometry, DDO ;
Photometry, UBV ; Space velocities ; Abundances, [Fe/H] ;
Proper motions ; MK spectral classification
Keywords: North Galactic Pole - radial velocities - BV and DDO photometry -
spaces velocities - abundances - Galactic structure
Abstract:
Radial velocities are given for some 900 stars within 15° of the
North Galactic Pole, including almost all such stars classified G5 or
latter in the Henry-Draper Catalogue (Cat. III/135). Luminosities,
two-dimensional spectral classes, composition indices, and distances
are derived for the majority of the sample through DDO and BV
photometry.
The radial velocities come from several instruments (see the "Note(2)"
section below) ; the BV and DDO photometries were obtained at Mount
Laguna Observatory, with the San Diego State University 24-inch
Schmidt reflector.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 150 914 Photometric and velocity data (table3 of paper)
stars.dat 120 914 List of the NGP stars (table 1a)
vel.dat 37 2640 Spectrometer measurements of radial and
rotational velocities (table 1b)
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See also:
V/50 : Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)
III/10 : G5 and Later Stars in a North Galactic Pole Region (Upgren 1962)
V/33 : RV at the North and South Galactic poles (Hartkopf+ 1982)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD (Cat. III/135) number
7- 8 A2 --- m_HD Multiplicity index on HD or double name
9 A1 --- n_HD [+] +: known variable
11- 15 F5.2 mag Vmag ? V magnitude
17- 20 F4.2 mag B-V ? B-V colour index
21 A1 --- n_B-V [?v] v: variable, ?: Possibly variable
22- 23 I2 --- o_Vmag ? Number of Mount Laguna observations
24 A1 --- f_Vmag [B] 'B' when V and B-V from
Bright Star Catalogue (Cat. V/50)
26- 29 I4 mmag C(45-48) ? DDO C(45-48) colour index
32- 35 I4 mmag C(42-45) ? DDO C(42-45) colour index
37- 41 I5 mmag C(41-42) ? DDO C(41-42) colour index
42 A1 --- n_C(41-42) [v] v: variable
43- 44 I2 --- o_C(45-48) ? Number of DDO observations
45 A1 --- f_C(45-48) [CG] CCD or Grism photometry
46- 50 I5 mas/yr pmRA ? Proper motion in RA
52- 56 I5 mas/yr pmDE ? Proper motion in DE
57 A1 --- r_pmDE [ai] Origin of proper motions (2)
58- 63 F6.1 km/s RV ? Mean Radial velocity
64- 67 F4.1 km/s e_RV ? rms uncertainty on RV
69- 70 I2 --- o_RV Number of observations in RV
72- 73 A2 --- r_RV [pgP nd st] Origin of RV (3)
75 A1 --- r_SpType [*hu] Origin of SpType (4)
76- 84 A9 --- SpType Published spectral type
85 A1 --- n_SpType2 [D] Possible halo candidate (5)
86- 94 A9 --- SpType2 DDO spectral type
97-100 F4.1 mag VMAG ? DDO absolute V magnitude
102 A1 --- n_[Fe/H] [d] d: [Fe/H] contains δCN for
G-K dwarfs
103-107 F5.2 [Sun] [Fe/H] ? DDO metallicity
110-114 F5.2 mag c.e. ? Colour excess (6)
118-121 I4 pc z ? Distance from a plane drawn through the
Sun, parallel to the Galactic plane
122-125 I4 km/s Uvel ? U Galactic velocity
126-129 I4 km/s Vvel ? V Galactic velocity
131-133 I3 km/s Wvel ? W Galactic velocity
135-137 I3 10-2 amaj ? Semi-major axis (in units of the Sun's
distance from the Galactic centre)
139-141 I3 10-2 e ? Eccentricity of the Galactocentric orbit
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Note (2): the source of the proper motion is indicated as:
a: Astrographic Catalogue of Reference Stars (Cat. I/171)
i: Hipparcos Input Catalogue (Cat. I/196)
Note (3): the source is the radial velocity is indicated as:
p: gamma-velocity from published data by Griffin
g: gamma-velocity from preliminary unpublished orbit by Griffin
P: gamma-velocity from published data by others
nd: no observable or measurable dip
st: radial-velocity standard
Note (4): The spectral types are one-dimensional spectral types from the
HD catalogue, or two-dimensional types gathered from various sources,
in particular:
*: BSC (Cat. V/50) two-dimensional class
h: Heard (1956PDDO....2..105H 1956PDDO....2..105H) two-dimensional class
u: Upgren (1962AJ.....67...37U 1962AJ.....67...37U, Cat. III/10) two-dimensional
class if a two-dimensional type published later is not available
Note (5): possible candidates for Galactic halo or thick-disk giants
from Δ4548 process analysis are marked by a 'D'.
Note (6): Colour excess, which in this case, since there is virtually no
interstellar reddening, represents the natural spread in (B-V) for a
given MK class, plus any error in the DDO MK class.
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Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [HD]
4- 9 I6 --- HD HD (Cat. III/135) number
10- 11 A2 --- m_HD Multiplicity index on HD
12 A1 --- n_HD [*] * when the star is in the HD Supplement
14- 15 I2 h RAh Right Ascension J2000 (hours) (1)
17- 18 I2 min RAm Right Ascension J2000 (minutes) (1)
20- 23 F4.1 s RAs Right Ascension J2000 (seconds) (1)
25 A1 --- DE- Declination J2000 (sign) (1)
26- 27 I2 deg DEd Declination J2000 (degrees) (1)
29- 30 I2 arcmin DEm Declination J2000 (minutes) (1)
32- 33 I2 arcsec DEs Declination J2000 (seconds) (1)
34 A1 --- posFlag [*] '*' if position computed (1)
36- 68 A33 --- Names Other names
70-120 A51 --- Com Comments
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Note (1): Positions from SIMBAD data-base; when posFlag contains an
asterisk, the position was computed from the ρ and and θ
values supplied in the comments.
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Byte-by-byte Description of file: vel.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [HD]
4- 9 I6 --- HD HD (Cat. III/135) number
10 -11 A2 --- m_HD Multiplicity index on HD
12 A1 --- n_HD [*] * when the star is in the HD Supplement
14- 15 I2 yr OBS.Y ? UT date of observation, Year (1900+) (1)
17- 18 I2 "month" OBS.M ? UT date of observation, Month
20- 24 F5.2 d OBS.D ? UT date of observation, Day
26 A1 --- f_RV [R] R: rejected RV values
28- 33 F6.1 km/s RV Radial velocity
34- 35 A2 --- u_RV [:: ] Uncertainty flag on RV
36 A1 --- Obs [EOPRVY] Observation information (2)
37 A1 --- n_RV [abcdef] Notes (3)
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Note (1): No value => Standard
Note (2): the instrumentation used is marked by:
E: ESO Coravel
O: OHP Coravel (Baranne et al., 1979VA.....23..279B 1979VA.....23..279B)
P: Palomar 200-inch (Griffin & Gunn, 1974ApJ...191..545G 1974ApJ...191..545G)
R: Cambridge 36-inch
V: DAO 48-inch (Fletcher et al., 1982PASP...94.1017F 1982PASP...94.1017F)
Y: DAO 48-inch
blank: Cambridge 36-inch (Griffin, 1967ApJ...148..465G 1967ApJ...148..465G)
Note (3): the symbols have the following meaning:
a: Discordance not significant on this very faint star
b: Both stars on slit
c: South star alone
d: North star alone
e: Primary star alone
f: Secondary star alone
g: HD 108736 C = ADC 8570 C: Aitken's position angle is 180° off
h: Upgren's list identifies U 35 134 with HD 110814, but his chart
appears to point to the northern component, i.e. the companion
star, which we have called HD 110814B. Upgren merely comments
"Double star", without saying whether his identifier belongs to
both stars or only to one or the other.
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Acknowledgements:
Ken Yoss
(End) Patricia Bauer, Francois Ochsenbein [CDS] 12-Nov-1999