DOI: https://doi.org/10.18524/1810-4215.2008.21.86886

ATMOSPHERIC PARAMETERS AND CHEMICAL COMPOSITION OF PECULIAR STARS HR465, HD91375, and HD25354

V. Yushchenko, V. Gopka, A. Yushchenko, A. Shavrina, S. Hubrig, F. Musaev

Анотація


We present the results of determinations of the atmospheric parameters and chemical composition of three chemically peculiar stars: HR465, HD91375, and HD25354. We used the observations made at 1.8 meter Bohuynsan observatory (Korea), 1.88 meter Haute-Provence observatory (France), 2.0 meter Terskol observatory (Russia), and 8.2 meter ESO telescopes. The effective temperatures of HR465 and HD25354 are higher than the values, found in earlier investigations. The detailed abundance pattern of HD91375 is found for the first time, the star is a typical member of Am or Ap group.

Ключові слова


stars; abundances; stars; individual (HR465; HD91375; HD25354).

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Посилання


Aikman G.C.L., Cowley C.R., Crosswhite H.M.: 1979, ApJ, 232, 812.

Aller M.F.: 1970, A&A, 19, 248.

Burbidge E.M., Burbidge G.R., Fowler W.A., Hoyle F.: 1957, Reviews of Modern Physics, 29, 547.

Carrier F., North P., Udry S., Babel J.: 2002, A&A, 394, 151.

Cowley C.R., Aikman G.C.L.: 1980, ApJ, 1980, 242, 684.

Floquet M.: 1981, A&A, 101, 176.

Floquet M.: 1982, A&A, 112, 299.

Gopka V.F., Ulyanov O.M., Andrievsky S.M.: 2007, Odessa Astron. Publ, 20, 57.

Gopka V.F., Ulyanov O.M., Andrievsky S.M.: 2008, AIP Conf. Proc., 1016, 460.

Gopka V.F., Shavrina A.V., Yushchenko V.A.: 2007, Izv. KrAO, 104, 223.

Guthrie B.N.G.: 1982, Astrophysics and Space Science, 85, 315.

Holweger H., Steffen M., Gigas D.: 1986, A&A, 163, 333.

Holweger H., Sturenburg S.: 1993, Peculiar versus Normal Phenomena in A-type and Related Stars, IAU Col. 138, Eds.M.M. Dworetsky, F. Castelli, R. Faraggiana; ASP, San Francisco, CA, P. 356.

Kochukhov O., Bagnulo S.: 2006, A&A, 450, 763.

Kurucz R.: 2000, http:kurucz.harvard.edu

Lemke M.: 1989, A&A, 225, 125.

Lemke M.: 1990, A&A, 240, 331.

Mathys G., Hubrig S.: 2006, A&A, 453, 699.

Palous J., Hauck B.: 1986, A&A, 162, 54.

Preston G.W.: 1970, PASP, 82, 878.

Pyper D.M., Hartoog M.R.: 1975, ApJ, 198, 555.

Rentzsch-Holm I.: 1997, A&A, 317, 178.

Wolff S.C.: 1967, ApJS, 15, 21.

Yushchenko A.V., Gopka V.F., Khokhlova V.L., Musaev F.A., Bikmaev I.F.: 1999, Astronomy Letters, 25, 453.

Yushchenko A.V.: 1998, Proceedings of the 20th Stellar Conference of the Czech and Slovak Astronomical Institutes, Brno, Czech Republic. ed. Dusek J., pp. 201-203, ISBN 80-85882-08-6.

Yushchenko A., Gopka V., Goriely S., Musaev F., Shavrina A., Kim C., Kang Y.-W., Kuznietsova J., Yushchenko V.: 2005, A&A, 2005 430, 255.

Yushchenko A., Gopka V., Shavrina A., Nazarenko V., Kang Y.-W., Kim C., Yushchenko V.: 2008, The First Thailand-Korea Joint Workshop on Stellar Astrophysics, Eds. Kang Y.-W. & Soonthornthum B., pp. 75-86. Chiang Mai University Press, Chiang Mai, Thailand. ISBN 978-974-229-620-9.




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