J/A+A/326/751 Chemical composition of halo and disk stars (Nissen+, 1997)
Chemical composition of halo and disk stars with overlapping metallicities
Nissen P.E., Schuster W.J.
<Astron. Astrophys. 326, 751 (1997)>
=1997A&A...326..751N 1997A&A...326..751N
ADC_Keywords: Abundances ; Stars, population II ; Photometry, uvby, beta
Keywords: stars: abundances; Population II - Galaxy: abundances; evolution; halo
Description:
Table A1 lists the Stromgren photometry together with color excesses,
E(b-y), photometric metallicities, [Fe/H] , calculated from the
calibrations of Schuster & Nissen (1989A&A...221...65S 1989A&A...221...65S), and absolute
magnitudes, M(V), and distances derived with the equations of Nissen &
Schuster (1991A&A...251..457N 1991A&A...251..457N) using the photometric metallicities.
Table A2 contains coordinates, proper motions and radial velocities
for the program stars as well as distances calculated from the
calibrations Nissen & Schuster (1991A&A...251..457N 1991A&A...251..457N) using the
spectroscopic metallicities scaled to our photometric [Fe/H] system.
Table A3 gives a list of the 209 spectral lines, which were analyzed,
arranged element by element. The table contains the wavelength, the
excitation potential of the lower level corresponding to the line, the
gf-value, the enhancement factor of the classical van der Waals
damping constant, the statistical weight of the upper level, and the
equivalent widths measured for the two "standard" stars, HD 22879 and
HD 76932.
Table A4 contains the measured equivalent widths for all program
stars.
Table A5 gives abundance ratios and kinematical as well as orbital
parameters for the program stars. First are given the data for the 16
disk stars, then follows the 14 halo stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 71 29 Stromgren photometry and derived parameters
tablea2.dat 72 29 Coordinates, proper motions and radial velocities
tablea3.dat 60 209 Atomic line data and equivalent widths for the
standard stars HD 22879 and HD 76932
tablea4.dat 134 209 Equivalent widths for the 30 programme stars
tablea5.dat 168 30 Abundance ratios and kinematical parameters
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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2- 9 A8 --- Name Designation of star
12- 17 F6.3 mag Vmag Visual magnitude (1)
20- 24 F5.3 mag b-y Colour index (1)
27- 31 F5.3 mag m1 Metallicity index (1)
34- 38 F5.3 mag c1 Balmer discontinuity index (1)
41- 45 F5.3 mag Hbeta ? H-beta line index
48- 53 F6.3 mag E(b-y) ? Color excess
56- 60 F5.2 [Sun] [Fe/H] Photometric metallicity
63- 66 F4.2 mag M(V) ? Absolute magnitude
69- 71 I3 pc Dist1 Distance (using photometric metallicities)
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Note (1): Vmag, b-y, m1 and c1 have been corrected for the effect of
interstellar reddening if E(b-y)>0.015.
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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4- 11 A8 --- Name Designation of star
14- 15 I2 h RAh Right ascension (1950.0)
17- 18 I2 min RAm Right ascension (1950.0)
20- 24 F5.2 s RAs Right ascension (1950.0)
27 A1 --- DE- Declination sign
28- 29 I2 deg DEd Declination (1950.0)
31- 32 I2 arcmin DEm Declination (1950.0)
34- 35 I2 arcsec DEs Declination (1950.0)
38- 41 I4 yr Epoch Epoch of coordinates
44- 49 F6.3 arcsec/yr pmRA Proper motion = 15*mu(alpha)*cos(dec)
51- 56 F6.3 arcsec/yr pmDE Proper motion = mu(dec)
59- 64 F6.1 km/s HRV Heliocentric radial velocity
67- 69 I3 pc Dist2 Distance (using spectroscopic metallicities)
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Byte-by-byte Description of file: tablea3.dat
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Bytes Format Units Label Explanations
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2- 5 A4 --- Element Chemical element and ionization stage
8- 14 F7.2 0.1nm Lambda Wavelength (Angstrom)
19- 22 F4.2 eV EP Line excitation energy of lower level
26- 30 F5.2 --- log(gf) Log gf (oscillator strength)
34- 36 F3.1 --- f6 Enhancement factor of classical van der Waals
damping Gamma_6
39- 40 I2 --- g(upper) Statistical weight of upper level of line
46- 49 F4.1 0.1pm W(22879) ? Equivalent width (milliAngstrom) for HD22879
55- 58 F4.1 0.1pm W(76932) ? Equivalent width (milliAngstrom) for HD76932
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Byte-by-byte Description of file: tablea4.dat
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Bytes Format Units Label Explanations
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2- 5 A4 --- Element Chemical element and ionization stage
8- 14 F7.2 0.1nm Lambda Wavelength (Angstrom)
16- 18 I3 0.1pm EW(1) ? Equivalent width (mA) for HD3567
20- 22 I3 0.1pm EW(2) ? Equivalent width (mA) for CD-61 0282
24- 26 I3 0.1pm EW(3) ? Equivalent width (mA) for HD17288
28- 30 I3 0.1pm EW(4) ? Equivalent width (mA) for HD17820
32- 34 I3 0.1pm EW(5) ? Equivalent width (mA) for G005-040
36- 38 I3 0.1pm EW(6) ? Equivalent width (mA) for CD-47 1087
40- 42 I3 0.1pm EW(7) ? Equivalent width (mA) for HD22879
44- 46 I3 0.1pm EW(8) ? Equivalent width (mA) for HD24339
48- 50 I3 0.1pm EW(9) ? Equivalent width (mA) for HD25704
52- 54 I3 0.1pm EW(10) ? Equivalent width (mA) for HD241253
56- 58 I3 0.1pm EW(11) ? Equivalent width (mA) for G102-020
60- 62 I3 0.1pm EW(12) ? Equivalent width (mA) for CD-33 3337
64- 66 I3 0.1pm EW(13) ? Equivalent width (mA) for CD-57 1633
68- 70 I3 0.1pm EW(14) ? Equivalent width (mA) for CD-45 3283
72- 74 I3 0.1pm EW(15) ? Equivalent width (mA) for G088-040
76- 78 I3 0.1pm EW(16) ? Equivalent width (mA) for HD76932
80- 82 I3 0.1pm EW(17) ? Equivalent width (mA) for G046-031
84- 86 I3 0.1pm EW(18) ? Equivalent width (mA) for HD83220
88- 90 I3 0.1pm EW(19) ? Equivalent width (mA) for BD-21 3420
92- 94 I3 0.1pm EW(20) ? Equivalent width (mA) for HD103723
96- 98 I3 0.1pm EW(21) ? Equivalent width (mA) for HD105004
100-102 I3 0.1pm EW(22) ? Equivalent width (mA) for HD106038
104-106 I3 0.1pm EW(23) ? Equivalent width (mA) for HD106516
108-110 I3 0.1pm EW(24) ? Equivalent width (mA) for W7547
112-114 I3 0.1pm EW(25) ? Equivalent width (mA) for HD113083A
116-118 I3 0.1pm EW(26) ? Equivalent width (mA) for HD113083B
120-122 I3 0.1pm EW(27) ? Equivalent width (mA) for HD113679
124-126 I3 0.1pm EW(28) ? Equivalent width (mA) for HD120559
128-130 I3 0.1pm EW(29) ? Equivalent width (mA) for HD121004
132-134 I3 0.1pm EW(30) ? Equivalent width (mA) for HD126681
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Byte-by-byte Description of file: tablea5.dat
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Bytes Format Units Label Explanations
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2- 9 A8 --- Name Designation of star
10 A1 --- m_Name [AB] Multiplicity index on Name
11- 16 I6 K Teff Effective temperature
17- 22 F6.2 [cm/s2] log(g) Logarithmic surface gravity
23- 29 F7.2 [Sun] [Fe/H] iron-to-hydrogen ratio
30- 34 F5.2 [Sun] [O/Fe] Oxygen-to-iron ratio
35- 39 F5.2 [Sun] [Mg/Fe] Magnesium-to-iron ratio
40- 44 F5.2 [Sun] [Si/Fe] Silicon-to-iron ratio
45- 49 F5.2 [Sun] [Ca/Fe] Calcium-to-iron ratio
50- 54 F5.2 [Sun] [Ti/Fe] Titanium-to-iron ratio
55- 60 F6.2 [Sun] [Cr/Fe] Chromium-to-iron ratio
61- 66 F6.2 [Sun] [Ni/Fe] Nickel-to-iron ratio
67- 72 F6.2 [Sun] [Na/Fe] Sodium-to-iron ratio
73- 78 F6.2 [Sun] [Y/Fe] Yttrium-to-iron ratio
79- 84 F6.2 [Sun] [Ba/Fe] Barium-to-iron ratio
85- 92 F8.1 km/s Uvel Galactic U-velocity component relative LSR
93-100 F8.1 km/s Vvel Galactic V-velocity component relative LSR
101-108 F8.1 km/s Wvel Galactic W-velocity component relative LSR
109-116 F8.1 km/s V(tot) Total velocity relative to galactic center
117-124 F8.1 kpc.km/s H(z) Angular momentum about z-axis of the Galaxy
125-132 F8.4 --- e Orbital eccentricity
133-139 F7.3 kpc z(max) Maximum value of z-coordinate
140-146 F7.2 kpc R(max) Maximum distance from galactic center
147-154 F8.3 kpc z(min) Minimum value of z-coordinate
155-161 F7.3 kpc R(min) Minimum distance from galactic center
162-168 F7.3 kpc |z|(max) Maximum distance from the galactic plane
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Acknowledgements: Poul Erik Nissen
(End) Patricia Bauer [CDS] 25-Aug-1997