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Identification of peculiar A-stars. I. Analysis of the equivalent width of the 2786–2810 Å spectral band and the MgII 4481 Å line for 137 A-stars

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The dependence of the equivalent widths of the 2786–2810 Å spectral band and the MgII 4481 Å line on the basic parameters (Teff, logg and [M/H]) for 137 bright A-stars shows that 60 of them are candidate peculiar stars. Given the similar behavior of W(2800) and W(4481), it can be assumed that 34 of the stars are chemically peculiar stars. The anomalous values of W(2800), W(4481), and [M/H] vary over wide limits for the rest of the stars, possibly because they are binary.

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References

  1. K. A. Venn, and D. L. Lambert, Astrophys. J. 363, 234 (1990).

    Article  ADS  Google Scholar 

  2. V. V. Smith, K. Cunha, and D. Lazzaro, Astron. J. 121, 3207 (2001).

    Article  ADS  Google Scholar 

  3. R. G. Gratton, G. Bonanno, R. U. Claudi et. al., Astron. Astrophys. 377, 123 (2001).

    Article  ADS  Google Scholar 

  4. R. Farragiana and P. Bonifacio, Astron. Astrophys. 349, 521 (1999).

    ADS  Google Scholar 

  5. D. Hoffleit, Jr., W. H. Warren, The Bright Star Catalogue 5-th Revised Edition (1991).

  6. A. C. Prieto and D. L. Lambert, Astron. Astrophys. 352, 555 (1999).

    ADS  Google Scholar 

  7. C. Morossi, P. Di Marcantonio, M. Franchini et. al., Astrophys. J. 577, 377 (2002).

    Article  ADS  Google Scholar 

  8. P. Erspamer and P. North, Astron. Astrophys. 383, 227 (2002).

    Article  ADS  Google Scholar 

  9. T. T. Moon, Comm. Univ. Lon. No. 78 (1985).

  10. B. Hauck and M. Mermilliod, Astron. Astrophys. Suppl. Ser. 129, 431 (1998).

    Article  ADS  Google Scholar 

  11. B. Smalley, Astron. Astrophys. 274, 391 (1993).

    ADS  Google Scholar 

  12. S. J. Adelman, O. I. Pintado, M. F. Nivea et. al., Astron. Astrophys. 392, 1031 (2002).

    Article  ADS  Google Scholar 

  13. M. L. Malagnini, C. Morossi, L. Rossi et. al., Astron. Astrophys. 162, 140 (1986).

    ADS  Google Scholar 

  14. M. L. Malagnini and C. Morossi, Astron. Astrophys. Suppl. Ser. 85, 1015 (1990).

    ADS  Google Scholar 

  15. E. Theodossiou, Mon. Notic. Roy. Astron. Soc. 214, 327 (1985).

    ADS  Google Scholar 

  16. R. O. Gray, P. W. Graham, and S. R. Hoyt, Astron. J. 121, 2159 (2001).

    Article  ADS  Google Scholar 

  17. R. O. Gray, C. J. Corbally, R. F. Garrison et. al., Astron. J. 132, 161 (2006).

    Article  ADS  Google Scholar 

  18. J. B. Ohanesyan, Astrofizika 40, 365 (1997).

    Google Scholar 

  19. R. O. Gray, C. J. Corbally, R. F. Garrison et. al., Astron. J. 126, 2048 (2003).

    Article  ADS  Google Scholar 

  20. C. G. de Strobel, C. Soubiran, E. D. Friel et. al., Astron. Astrophys. Suppl. Ser. 124, 299 (1997).

    Article  ADS  Google Scholar 

  21. D. Erspamer and P. North, Astron. Astrophys. 398, 1121 (2003.

    Article  ADS  Google Scholar 

  22. N. A. Sokolov, Astron. Astrophys. Suppl. Ser. 110, 553 (1995).

    ADS  Google Scholar 

  23. S. J. Adelman, Astrophys. J. 222, 547 (1978).

    Article  ADS  Google Scholar 

  24. S. Sturenburg, Astron. Astrophys. 277, 139 (1993).

    ADS  Google Scholar 

  25. A. D. Code, R. C. Bless, J. Devis et. al., Astrophys. J. 203, 417 (1976).

    Article  ADS  Google Scholar 

  26. E. Paunzen, W. W. Weiss, U. Heiter et. al., Astron. Astrophys. Suppl. Ser. 123, 93 (1997).

    Article  ADS  Google Scholar 

  27. E. Solano and E. Paunzen, Astron. Astrophys. 348, 825 (1999).

    ADS  Google Scholar 

  28. F. Castelli and R. Kurucz, Astron. Astrophys, 372, 260 (2001).

    Article  ADS  Google Scholar 

  29. K. C. Smith, Astron. Astrophys. 276, 393 (1993).

    ADS  Google Scholar 

  30. U. Heiter, F. Kupka, E. Paunzen et. al., Astron. Astrophys. 335, 1009 (1998).

    ADS  Google Scholar 

  31. H. A. Abt and N. Morrell, Astrophys. J. Suppl. Ser. 99, 135 (1995).

    Article  ADS  Google Scholar 

  32. F. Royer, J. Zorec, and A. E. Gomez, Astron. Astrophys. Suppl. Ser. 463, 671 (2007).

    ADS  Google Scholar 

  33. M. Gerbaldi, R. Farragiana, and O. Lai, Astron. Astrophys. 412, 447 (2003).

    Article  ADS  Google Scholar 

  34. F. Castelli and S. Hubrig, Astron. Astrophys. 425, 263 (2004).

    Article  ADS  Google Scholar 

  35. R. Farragiana, M. Gerbaldi, P. Bonifacio et. al., Astron. Astrophys. 376, 586 (2001).

    Article  ADS  Google Scholar 

  36. R. Farragiana, P. Bonifacio, E. Caffau et. al., Astron. Astrophys. 425, 615 (2004).

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. V. A. Ambartsumyan Byurakan Astrophysical Observatory, Byurakan, Armenia

    J. B. Ohanesyan

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  1. J. B. Ohanesyan
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Correspondence to J. B. Ohanesyan.

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Translated from Astrofizika, Vol. 51, No. 4, pp. 577–593 (November 2008).

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Ohanesyan, J.B. Identification of peculiar A-stars. I. Analysis of the equivalent width of the 2786–2810 Å spectral band and the MgII 4481 Å line for 137 A-stars. Astrophysics 51, 490–505 (2008). https://doi.org/10.1007/s10511-008-9041-5

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  • DOI: https://doi.org/10.1007/s10511-008-9041-5

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