J/A+A/404/187 Equivalent widths for metal-poor stars (Gratton+, 2003)
Abundances for metal-poor stars with accurate parallaxes. I. Basic data.
Gratton R.G., Carretta E., Claudi R., Lucatello S., Barbieri M.
<Astron. Astrophys. 404, 187 (2003)>
=2003A&A...404..187G 2003A&A...404..187G
ADC_Keywords: Stars, metal-deficient ; Stars, population II ; Equivalent widths
Keywords: Stars: abundances - Star: evolution - Stars: Population II -
Galaxy: globular clusters: general
Abstract:
We present element-to-element abundance ratios measured from high
dispersion spectra for 150 field subdwarfs and early subgiants with
accurate Hipparcos parallaxes (errors<20%). For 50 stars new spectra
were obtained using the UVES on Kueyen (VLT UT2), the McDonald 2.7m
telescope, and SARG at TNG. Additionally, literature equivalent widths
were taken from the works by Nissen & Schuster (1997,
Cat. J/A+A/326/751), Fullbright (2000AJ....120.1841F 2000AJ....120.1841F), and
Prochaska et al. (2000AJ....120.2513P 2000AJ....120.2513P) to complement our data.
The whole sample includes both thick disk and halo stars (and a
few thin disk stars); most stars have metallicities in the range
-2<[Fe/H]←0.6. We found our data, that of Nissen & Schuster, and that
of Prochaska to be of comparable quality; results from Fulbright
scatter a bit more, but they are still of very good quality and are
extremely useful due to the large size of his sample. The results of
the present analysis will be used in forthcoming papers to discuss the
chemical properties of the dissipational collapse and accretion
components of our Galaxy.
Description:
Equivalent widths for 50 metal poor stars measured from high
resolution spectra obtained at the ESO VLT2 telescope (UVES),
McDonald 2.7m, and TNG telescopes (SARG spectrograph).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 328 619 Equivalent widths for 50 stars
table2.dat 110 150 Basic parameters
table4.dat 70 150 Kinematics
table5.dat 55 150 Atmospheric parameters
table67.dat 117 150 Abundances (tables 6 & 7 of the paper)
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See also:
J/A+A/326/751 : Chemical composition of halo and disk stars (Nissen+, 1997)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Element Species name and ionization (1=neutral)
6- 12 F7.2 0.1nm Lambda Wavelength
14- 18 F5.3 eV EP Potential Energy
20- 25 F6.3 --- loggf log Oscillator Strength
26- 30 F5.1 0.1pm EWHD3567 Equivalent width for HD 3567
32- 36 F5.1 0.1pm EWCD-35.0360 Equivalent width for CD-35 0360
38- 42 F5.1 0.1pm EWCD-61.0282 Equivalent width for CD-61 0282
44- 48 F5.1 0.1pm EWHD10607 Equivalent width for HD 10607
50- 54 F5.1 0.1pm EWBD+29.0366 Equivalent width for BD+29 0366
56- 60 F5.1 0.1pm EWHD19445 Equivalent width for HD 19445
62- 66 F5.1 0.1pm EWHD23439 Equivalent width for HD 23439
68- 72 F5.1 0.1pm EWHD25704 Equivalent width for HD 25704
74- 78 F5.1 0.1pm EWHD29907 Equivalent width for HD 29907
80- 84 F5.1 0.1pm EWHD31128 Equivalent width for HD 31128
87- 91 F5.1 0.1pm EWHD34328 Equivalent width for HD 34328
93- 97 F5.1 0.1pm EWHD64090 Equivalent width for HD 64090
99-103 F5.1 0.1pm EWCD-80.0328 Equivalent width for CD-80 0328
105-109 F5.1 0.1pm EWHD84937 Equivalent width for HD 84937
111-115 F5.1 0.1pm EWHD91345 Equivalent width for HD 91345
117-121 F5.1 0.1pm EWHD94028 Equivalent width for HD 94028
123-127 F5.1 0.1pm EWHD97320 Equivalent width for HD 97320
129-133 F5.1 0.1pm EWHD103095 Equivalent width for HD 103095
135-139 F5.1 0.1pm EWHD108177 Equivalent width for HD 108177
141-145 F5.1 0.1pm EWHD111980 Equivalent width for HD 111980
148-152 F5.1 0.1pm EWHD116064 Equivalent width for HD116064
154-158 F5.1 0.1pm EWHD120559 Equivalent width for HD120559
160-164 F5.1 0.1pm EWHD121004 Equivalent width for HD121004
166-170 F5.1 0.1pm EWHD126681 Equivalent width for HD126681
172-176 F5.1 0.1pm EWHD132475 Equivalent width for HD132475
178-182 F5.1 0.1pm EWHD134169 Equivalent width for HD134169
184-188 F5.1 0.1pm EWHD134439 Equivalent width for HD134439
190-194 F5.1 0.1pm EWHD134440 Equivalent width for HD134440
196-200 F5.1 0.1pm EWHD140283 Equivalent width for HD140283
202-206 F5.1 0.1pm EWHD145417 Equivalent width for HD145417
209-213 F5.1 0.1pm EWHD159482 Equivalent width for HD159482
215-219 F5.1 0.1pm EWBD+02.3375 Equivalent width for BD+02 3375
221-225 F5.1 0.1pm EWBD+05.3640 Equivalent width for BD+05 3640
227-231 F5.1 0.1pm EWHD166913 Equivalent width for HD166913
233-237 F5.1 0.1pm EWHD181743 Equivalent width for HD181743
239-243 F5.1 0.1pm EWHD188510 Equivalent width for HD188510
245-249 F5.1 0.1pm EWHD189558 Equivalent width for HD189558
251-255 F5.1 0.1pm EWBD+42.3607 Equivalent width for BD+42 3607
257-261 F5.1 0.1pm EWBD+23.3912 Equivalent width for BD+23 3912
263-267 F5.1 0.1pm EWHD193901 Equivalent width for HD193901
270-274 F5.1 0.1pm EWHD194598 Equivalent width for HD194598
276-280 F5.1 0.1pm EWHD196892 Equivalent width for HD196892
282-286 F5.1 0.1pm EWHD201891 Equivalent width for HD201891
288-292 F5.1 0.1pm EWHD204155 Equivalent width for HD204155
294-298 F5.1 0.1pm EWHD205650 Equivalent width for HD205650
300-304 F5.1 0.1pm EWBD+59.2407 Equivalent width for BD+59 2407
306-310 F5.1 0.1pm EWBD+17.4708 Equivalent width for BD+17 4708
312-316 F5.1 0.1pm EWHD211998 Equivalent width for HD211998
318-322 F5.1 0.1pm EWHD219175A Equivalent width for HD219175A
324-328 F5.1 0.1pm EWHD219175B Equivalent width for HD219175B
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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- 10 A10 --- Name Star name
12- 13 I2 h RAh Right ascension (J2000)
15- 16 I2 min RAm Right ascension (J2000)
18- 19 I2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 29 I2 arcsec DEs Declination (J2000)
31- 35 I5 mas/yr pmRA Proper motion along right ascension
37- 41 I5 mas/yr pmDE Proper motion along declination
43- 48 F6.1 km/s RV Radial velocity
50- 55 F6.2 mas plx Parallax
57- 60 F4.2 mas e_plx rms uncertainty on plx
62- 66 F5.2 mag Vmag V magnitude
68- 71 F4.2 mag VMAG Absolute V magnitude
73- 76 F4.2 solMass Mass Mass
78- 82 F5.3 mag B-V B-V colour index
84- 88 F5.3 mag b-y ? b-y colour index
90 I1 --- Bin [0/1] 0 = bona fide single star,
1 = known or suspected binary
92- 96 F5.3 --- E(B-V) ? Interstellar reddening
99-110 A12 --- EWname Corresponding column name in table1.dat
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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- 10 A10 --- Name Star name
12- 18 F7.2 km/s Uvel U velocity
20- 26 F7.2 km/s Vvel V velocity
28- 34 F7.2 km/s Wvel W velocity
36- 40 F5.3 kpc Rmin Perigalactic distance
42- 47 F6.3 kpc Rmax Apogalactic distance
49- 54 F6.3 kpc Zmax Maximum height above the galactic plane
56- 60 F5.3 --- e Eccentricity of the galactic orbit
62- 68 F7.2 km/s Vtot Total velocity
70 I1 --- Pop [0/2] Population (1)
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Note (1): Population as follows:
0 = dissipative component
1 = accretion component
2 = thin disk
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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- 10 A10 --- Name Star name
12- 15 I4 K Teff Adopted effective temperature
17- 20 I4 K Teff1 ? Effective temperature derived from B-V data
22- 25 I4 K Teff2 ? Effective temperature derived from b-y data
27- 30 I4 K Teff3 ? Effective temperature derived from Hα
profile
32- 35 I4 K Teff4 ? Effective temperature derived from InfraRed
Flux Method (IRFM) by Alonso et al., 1996,
Cat. J/A+AS/117/227
37- 40 F4.2 [cm/s2] logg Surface gravity
42- 46 F5.2 --- [A/H] Metal abundance
48- 51 F4.2 km/s Vt Microturbulent velocity
53- 55 A3 --- Ref Source of the data (1)
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Note (1): Sources as follows:
U = New spectra obtained with the UVES on Kueyen (VLT UT2)
S = New spectra obtained with the SARG at TNG
M = New spectra obtained with the McDonald 2.7m telescope
N = Nissen & Schuster, 1997, Cat. J/A+A/326/751
F = Fulbright, 2000AJ....120.1841F 2000AJ....120.1841F
P = Prochaska et al., 2000AJ....120.2513P 2000AJ....120.2513P
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Byte-by-byte Description of file: table67.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Star name
12- 16 F5.2 --- [Fe/H]I Abundance of [Fe/H]I
18- 22 F5.2 --- [Fe/H]II-I ? Abundance of [Fe/H]II-I
24- 28 F5.2 --- [O/Fe][OI] ? Abundance of [O/Fe][OI]
30- 33 F4.2 --- [O/Fe]OI ? Abundance of [O/Fe]OI
35- 39 F5.2 --- [Na/Fe]I ? Abundance of [Na/Fe]I
41- 45 F5.2 --- [Mg/Fe]I ? Abundance of [Mg/Fe]I
47- 51 F5.2 --- [Si/Fe]I ? Abundance of [Si/Fe]I
53- 57 F5.2 --- [Ca/Fe]I Abundance of [Ca/Fe]I
59- 63 F5.2 --- [Ti/Fe]I ? Abundance of [Ti/Fe]I
65- 69 F5.2 --- [Ti/Fe]II ? Abundance of [Ti/Fe]II
71- 75 F5.2 --- [alpha/Fe] Abundance of [alpha/Fe]
77- 81 F5.2 --- [Sc/Fe]II ? Abundance of [Sc/Fe]II
83- 87 F5.2 --- [V/Fe]I ? Abundance of [V/Fe]I
89- 93 F5.2 --- [Cr/Fe]I ? Abundance of [Cr/Fe]I
95- 99 F5.2 --- [Cr/Fe]II ? Abundance of [Cr/Fe]II
101-105 F5.2 --- [Mn/Fe]I ? Abundance of [Mn/Fe]I
107-111 F5.2 --- [Ni/Fe]I ? Abundance of [Ni/Fe]I
113-117 F5.2 --- [Zn/Fe]I ? Abundance of [Zn/Fe]I
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Acknowledgements: Raffaele Gratton
(End) Patricia Bauer [CDS] 07-Apr-2003