J/A+A/406/987 Elemental abundances of three CP stars (Pintado+, 2003)
Elemental abundance analyses with the EBASIM spectrograph of the 2.1-m CASLEO
Observatory Telescope.
I. The late B and early A stars xi Octantis, alpha Sextantis, and 68 Taurus.
Pintado O.I., Adelman S.J.
<Astron. Astrophys. 406, 987 (2003)>
=2003A&A...406..987P 2003A&A...406..987P
ADC_Keywords: Stars, peculiar ; Abundances, peculiar
Keywords: stars: abundances - stars: chemically peculiar -
stars: individual: alpha Sex, 68 Tau, xi Oct
Abstract:
We used data from the EBASIM spectrograph of the 2.1-m CASLEO
telescope to study three rather sharp-lined late B to early A stars
ξ Oct (B6 IV), α Sex (B9.5 III), and 68 Tau (A2 IV). These
measurements are compared with those from the Anglo-Austrialian
Telescope for the first star and to those from the coude spectrograph
of the 1.22-m telescope of the Dominion Astrophysical Observatory
(DAO) for the other two stars. The equivalent width scales of the
EBASIM and the DAO data are similar. Thus for the latter two stars the
DAO data is also used in the analyses. Both ξ Oct and α Sex
generally have abundances close to those of the Sun in the range of
values found for other normal stars with similar effective
temperatures. The abundance pattern for 68 Tau is that of a
metallic-lined star as is well known.
Description:
The EBASIM is a fiber-feed bench echelle spectrograph at the 2.1-m
Jorge Sahade Telescope of the Complejo Astronomico El Leoncito
(CASLEO).
Objects:
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RA (2000) DE Designation(s) (File)
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22 50 22.8 -80 07 26 xi Oct = HD 215573 (table5.dat)
10 07 56.3 -00 22 18 alpha Sex = HD 87887 (table6.dat)
04 25 29.4 +17 55 40 68 Tau = HD 27962 (table7.dat)
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File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
abund.dat 35 75 Atomic abundances (table5 to table7)
table5.dat 42 217 The Elemental Abundances of ξ Oct
table6.dat 42 366 The Elemental Abundances of α Sex
table7.dat 42 976 The Elemental Abundances of 68 Tau
tables.tex 82 2095 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/406/975 : theta And, eps Del, eps Aqr, iota And (Kocer+, 2003)
Byte-by-byte Description of file: abund.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
13- 18 A6 --- Ion Ion
20- 21 A2 --- Element Element (identical to bytes 13-14)
26- 30 F5.2 --- log(Nel/H) Derived abundance of Element
32- 35 F4.2 --- e_log(Nel/H) ? rms uncertainty on log(Nel/H)
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Byte-by-byte Description of file: table5.dat table6.dat table7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
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1- 6 A6 --- Ion Ion designation
8- 12 A5 --- Mult Multiplet number
16- 22 F7.2 0.1nm lambda Wavelength
24- 28 F5.2 --- loggf Oscillator strength
30- 31 A2 --- r_loggf Reference for loggf (1)
33- 35 I3 0.1nm EW Equivalent width
37- 42 F6.2 [---] logN/H Elemental abundance logN/H
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Note (1): 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)
JK = Joensson et al. (1984, Phys. Review A, 30, 2429)
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)
MC = Magazzu & Cowley (1986ApJ...308..254M 1986ApJ...308..254M)
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
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)
WV = Ward (1985MNRAS.213...71W 1985MNRAS.213...71W)
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Acknowledgements: Saul J. Adelman
(End) Patricia Bauer [CDS] 02-Jun-2003