Access to Astronomical Catalogues

← Click to display the menu
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
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: ----------------------------------------------------------- RA (2000) DE Designation(s) SpType Teff ----------------------------------------------------------- 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 ----------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
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
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
Bytes Format Units Label Explanations
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)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
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 ? theta 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 ? epsilon Del elemental abundance (1) 53- 56 I4 0.1nm EW3 ? ε Aqr equivalent width 58- 62 F5.2 [---] log(El/Ntot)3 ? epsilon 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 ? iota And elemental abundance (1)
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) for V II, Biemont et al. (1981ApJ...248..867B) for Zr II BK = Biemont et al. (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) 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)
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
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
Acknowledgements: Saul J. Adelman
(End) Patricia Bauer [CDS] 05-Jun-2003
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact