J/A+A/367/859 α Scl and HD 170973 abundances (Lopez-Garcia+, 2001)
Elemental abundance studies of CP stars.
III: The magnetic CP stars α Scl and HD 170973
Lopez-Garcia Z., Adelman S.J., Pintado O.I.
<Astron. Astrophys. 367, 859 (2001)>
=2001A&A...367..859L 2001A&A...367..859L
ADC_Keywords: Stars, peculiar ; Abundances, peculiar ; Equivalent widths
Keywords: stars: chemically peculiar - stars: abundances -
stars: individual: α Scl - stars: individual: HD 170973
Abstract:
Fine analyses of the magnetic CP stars α Scl and HD 170973 are
presented using ATLAS9 model atmospheres which have same bulk
metallicity as the deduced abundances. The light elements are mostly
solar except for silicon, and all the heavier elements except nickel
in HD 170973, which is solar, are greatly overabundant. The iron peak
elements are typically 10 times overabundant, Sr is of order of 1000
times solar, Y and Zr are of order of 100 times solar. The rare earths
are 1000 or more times overabundant.
Objects:
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RA (2000) DE Designation(s)
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00 58 36.4 -29 21 27 alpha Scl = HD 5737
18 32 06.9 +03 39 35 HD 170973
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4a.dat 52 672 Elemental abundances
table4b.dat 33 32 Relative abundances
table4.tex 114 1081 LaTeX version of table 4
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See also:
J/A+AS/107/353 : Paper I. HD 43819 and HD 147550 (Lopez-Garcia+, 1994)
J/A+AS/137/227 : Paper II. HD 133029 and HD 192913 (Lopez-Garcia+, 1999)
J/A+AS/125/219 : mu Lep, 7 Sex, HR 4817 & 28 Her abundances (Adelman+ 1997)
J/A+AS/129/563 : Abundances of HR 4487, 14 Hyd and 3 Cen A (Pintado+ 1998)
J/MNRAS/316/514 : 28 And + 99 Her elemental abundances (Adelman+, 2000)
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)
J/A+A/406/987 : xi Oct, alpha Sex, 68 Tau elemental abund. (Pintado+, 2003)
Byte-by-byte Description of file: table4a.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Ion Ion designation
8- 13 A6 --- Mult Multiplet number from Moore (1945) if first
line of multiplet
15- 22 F8.3 0.1nm lambda Laboratory wavelength (air)
24- 28 F5.2 --- loggf Oscillator strength
31- 32 A2 --- r_loggf Reference to oscillator strength (1)
34- 36 I3 0.1pm EW1 ? Equivalent width for HD 170973
38- 42 F5.2 --- log(N/Ntot)1 ? log N/NT value for HD 170973
44- 46 I3 0.1pm EW2 ? Equivalent width for α Scl
48- 52 F5.2 --- log(N/Ntot)2 ? log N/NT value for α Scl
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Note (1): Sources of gf- values:
BG Biemont et al. (1981ApJ...248..867B 1981ApJ...248..867B)
BK Biemont et al. (1982A&A...107..166B 1982A&A...107..166B)
DW Dworetsky (1980A&A....84..350D 1980A&A....84..350D)
GB Grevesse et al. (1981, Upper Main Sequence CP Stars, 23rd.
Liege Astrophys. Coll., 211)
HL Hannaford et al. (1982ApJ...261..736H 1982ApJ...261..736H)
KP Kurucz & Peytremann (1975, SAO Special Report No. 362, part. 1)
KX Kurucz & Bell (1995, Kurucz CD-Rom No. 23)
L Lilly (1976, JOSA, 66, 971)
LA Lanz & Artru (1985PhyS...32..115L 1985PhyS...32..115L)
LD Lawler & Dakin (1989, JOSA B, 6, 1457)
MC Magazzu & Cowley (1986ApJ...308..254M 1986ApJ...308..254M)
MF Martin, Fuhr & Wiese (1988, Cat. VI/72) for Sc through Mn;
Fuhr, Martin and Wiese (1988, Cat. VI/72) for Fe through Ni;
WD Ward (1985MNRAS.213...71W 1985MNRAS.213...71W)
WF Wiese, Fuhr & Deters (1996, Atomic transition probabilities of
carbon, nitrogen, and oxygen : a critical data compilation.
Edited by W.L. Wiese, J.R. Fuhr, and T.M. Deters.
Washington, DC)
WM Wiese & Martin (1980, NSRDS-NBS 68, Part.2, US Governement
Printing Office, Washington);
WS Wiese, Smith & Glenon (1966, NSRDS-NBS 4, Washington, D.C.:
US Department of Commerce, National Buereau of Standard)
and Wiese, Smith & Miles (1969, NSRDS-NBS, D.C.: US Department
of Commerce, National Bureau of Standards).
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Byte-by-byte Description of file: table4b.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Ion Ion
8- 9 A2 --- El Element
11- 15 F5.2 --- log(El/Ntot)1 ? Elemental abundance for HD 170973 (1)
17- 20 F4.2 --- e_log(El/Ntot)1 ? rms uncertainty on log(El/Ntot)1
24- 28 F5.2 --- log(El/Ntot)2 ? Elemental abundance for α Scl (1)
30- 33 F4.2 --- e_log(El/Ntot)2 ? rms uncertainty on log(El/Ntot)2
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Note (1): El = Element
Ntot = number of atoms/volume of all elements
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Acknowledgements: Saul J. Adelman
(End) Patricia Bauer [CDS] 15-Jan-2001