J/A+A/406/975 Elemental abundances of four A-B stars (Kocer+, 2003)
Elemental abundance analyses with DAO spectrograms.
XXVII. The superficially normal stars theta And (A2 IV), epsilon Del (B6 III),
epsilon Aqr (A1.5 V), and iota And (B9 V).
Kocer D., Adelman S.J., Caliskan H., Gulliver A.F., Tektunali. G.H.
<Astron. Astrophys. 406, 975 (2003)>
=2003A&A...406..975K 2003A&A...406..975K
ADC_Keywords: Stars, peculiar ; Abundances, peculiar
Keywords: stars: abundances -
stars: individual: theta And, epsilon Del, epsilon Aqr, iota And
Abstract:
The superficially normal stars θ And (A2 V), ε Del
(B6 III), ε Aqr (A1.5 V), and ι And (B9 V), which have
rotationally broadened line profiles, are analyzed in a manner
consistent with previous studies of this series using 2.4Å/mm
spectrograms obtained with CCD detectors and S=N≥200. Their variable
radial velocities strongly suggest they are spectroscopic binaries. As
no evidence is seen for lines of their companions they are analyzed as
single stars. Their derived abundances are generally near solar. But
those for θ And suggest that it is possibly a fast rotating Am
star.
Description:
For all four stars we obtained Dominion Astrophysical Observatory
(DAO) 2.4Å/mm SITe-2 or SITe-4 CCD spectrograms with a typical
signal-to-noise ratio of 200 and a wavelength coverage of 63 or
144Å, respectively.
Objects:
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RA (2000) DE Designation(s) SpType Teff
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00 17 05.5 +38 40 54 tet And = HD 1280 A2 IV 9000
20 33 12.8 +11 18 12 eps Del = HD 195810 B6 III 13679
20 47 40.6 -09 29 45 eps Aqr = HD 198001 A1.5 V 9050
23 38 08.2 +43 16 05 iot And = HD 222173 B9 V 11600
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
abund.dat 32 59 Atomic abundances
table5.dat 73 231 Abundances in θ And, ε Del,
ε Aqr, and ι And
table6.dat 58 27 Comparison of Derived and Solar Abundances as
logN/H Species
tables.tex 113 470 LaTex version of the tables
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See also:
J/A+AS/107/353 : CP stars (Lopez-Garcia+, 1994)
J/A+AS/125/219 : Abundances of mu Lep, 7 Sex, HR 4817, 28 Her (Adelman+ 1997)
J/A+AS/129/563 : Abundances of HR 4487, 14 Hyd and 3 Cen A (Pintado+ 1998)
J/A+AS/137/227 : HD 133029 & HD 192913 abundances (Lopez-Garcia+ 1999)
J/A+A/354/899 : Elemental abundance analyses. IV. (Adelman+, 2000)
J/MNRAS/316/514 : 28 And & 99 Her elemental abundances (Adelman+, 2000)
J/A+A/367/597 : ups Her, phi Her & HR 7018 abundances (Adelman+, 2001)
J/A+A/367/859 : α Scl and HD 170973 abundances (Lopez-Garcia+, 2001)
J/A+A/394/187 : γ Ser & 101 Her elemental abundances (Caliskan+, 2002)
J/A+A/406/987 : xi Oct, alpha Sex, 68 Tau elemental abund. (Pintado+, 2003)
Byte-by-byte Description of file: abund.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Name Star name
10- 15 A6 --- Ion Ion
17- 18 A2 --- Element Element (identical to bytes 10-11)
21- 25 F5.2 --- log(Nel/H) Derived abundance of Element
26 A1 --- u_log(Nel/H) Uncertainty flag on log(Nel/H)
28- 31 F4.2 --- e_log(Nel/H) ? rms uncertainty on log(Nel/H)
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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- 6 A6 --- Ion Ion designation
8- 11 A4 --- Mult Multiplet number
13- 19 F7.2 0.1nm lambda Wavelength
21- 25 F5.2 --- loggf Oscillator strength
27- 28 A2 --- r_loggf Reference for loggf (2)
30- 33 I4 0.1nm EW1 ? θ And equivalent width
35- 40 F6.2 [---] log(El/Ntot)1 ? θ And elemental abundance (1)
41 A1 --- u_log(El/Ntot)1 Uncertainty flag on log(ElN/Ntot)1
43- 45 I3 0.1nm EW2 ? ε Del equivalent width
47- 51 F5.2 [---] log(El/Ntot)2 ? ε Del elemental abundance (1)
53- 56 I4 0.1nm EW3 ? ε Aqr equivalent width
58- 62 F5.2 [---] log(El/Ntot)3 ? ε Aqr elemental abundance (1)
63 A1 --- u_log(El/Ntot)3 Uncertainty flag on log(El/Ntot)3
65- 67 I3 0.1nm EW4 ? ι And equivalent width
69- 73 F5.2 [---] log(El/Ntot)4 ? ι And elemental abundance (1)
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Note (1): El = Element
Ntot = number of atoms/volume of all elements
Note (2): gf-value references:
BG = Biemont et al. (1989A&A...209..391B 1989A&A...209..391B) for V II,
Biemont et al. (1981ApJ...248..867B 1981ApJ...248..867B) for Zr II
BK = Biemont et al. (1982ApJ...261..736H 1982ApJ...261..736H)
FW = Fuhr & Wiese (1990, in Lide, D. R. ed, CRC Handbook of Chemistry
and Physics, CRC Press, Cleveland, OH))
GB = Grevesse et al. (1981, in Upper Main Seq. Chem. Pec. Stars.,
23rd Liege 81, P. 211)
HL = Hannaford et al. (1982ApJ...261..736H 1982ApJ...261..736H)
KF = Klose, Fuhr, & Wiese (2002, J. Phys. Chem. Ref. Data, 31, 217)
KP = Kurucz & Peytremann (1975, Cat. VI/10)
KX = Kurucz & Bell (1995, in Astrophysical Applications of Powerful
New Databases, eds. S. J. Adelman and W. L. Wiese
(ASP, San Francisco), ASP Conf. Ser. 78, 205)
LA = Lanz & Artru (1985, Phys. Scripta, 32, 155)
LD = Lawler & Dakin (1989, JOSA B, 6, 1457)
MF = Fuhr, Martin & Wiese (1988, J. Phys. Chem. Ref. Data 15,
Suppl. 4) and Martin, Fuhr & Wiese (1988, J. Phys. Chem. Ref.
Data 15, Suppl. 3), Cat. VI/72
SG = Scholz-Gulde (1969, JQSRT, 9, 13)
WF = Wise, Fuhr & Deters (1996, J. Phys. Chem. Ref. Data,
Monograph 6)
WM = Wiese & Martin (1980, SRDS-NBS 68. Part 2, US Government
Printing Office, Washington, DC.)
WS = Wiese, Smith & Glennon (1966, NSRDS-NBS 4, US Government
Printing, Office, Washington, DC and 1969, NSRDS-NBS,
Washington, D.C., US Department of Commerce, National Bureau
of Standards) and
Wiese, Smith & Miles (1969, NSRDS-NBS, Washington, D.C.:
US Department of Commerce, National Bureau of Standards)
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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- 6 A6 --- Ion Ion
8- 12 F5.2 [---] logEl/H2 ? ε Del derived abundance
14- 17 F4.2 [---] e_logEl/H2 ? rms uncertainty on logEl/H2
19- 23 F5.2 [---] logEl/H4 ? ι And derived abundance
25- 28 F4.2 [---] e_logEl/H4 ? rms uncertainty on logEl/H4
30- 34 F5.2 [---] logEl/H3 ? ε Aqr derived abundance
35 A1 --- u_logEl/H3 Uncertainty flag on logEl/H3
37- 40 F4.2 [---] e_logEl/H3 ? rms uncertainty on logEl/H3
42- 46 F5.2 [---] logEl/H1 ? θ And derived abundance
47 A1 --- u_logEl/H1 Uncertainty flag on logEl/H1
49- 52 F4.2 [---] e_logEl/H1 ? rms uncertainty on logEl/H1
54- 58 F5.2 [---] logEl/HS Sun abundance
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Acknowledgements: Saul J. Adelman
(End) Patricia Bauer [CDS] 05-Jun-2003