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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
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:
    ----------------------------------------------------------
       RA   (2000)   DE      Designation(s)
    ----------------------------------------------------------
    00 58 36.4   -29 21 27   alpha Scl = HD 5737
    18 32 06.9   +03 39 35   HD 170973
    ----------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

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


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

   Bytes Format Units     Label     Explanations

   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

Note (1): Sources of gf- values:
     BG Biemont et al. (1981ApJ...248..867B)
     BK Biemont et al. (1982A&A...107..166B)
     DW Dworetsky (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)
     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)
     LD Lawler & Dakin (1989, JOSA B, 6, 1457)
     MC Magazzu & Cowley (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)
     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).


Byte-by-byte Description of file: table4b.dat

   Bytes Format Units   Label        Explanations

   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

Note (1): El = Element
          Ntot = number of atoms/volume of all elements


Acknowledgements: Saul J. Adelman 

(End)                                          Patricia Bauer [CDS]  15-Jan-2001