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

Автор(и)

  • V. Yushchenko Department of astronomy, Odessa National University, T.G. Shevchenko Park, Odessa, 65014, Ukraine, Україна
  • V. Gopka Astronomical observatory, Odessa National University, T.G. Shevchenko Park, Odessa, 65014, Ukraine, Україна
  • A. Yushchenko Astrophysical Research Center for the Structure and Evolution of the Cosmos, Sejong University, Seoul, 143-747, Korea; Astronomical observatory, Odessa National University, T.G. Shevchenko Park, Odessa, 65014, Ukraine, Південна Корея
  • A. Shavrina Main Astronomical Observatory of National Academy of Sciences of Ukraine, 27 Zabolotnogo Str., 03680, Kyiv, Ukraine, Україна
  • S. Hubrig European Southern observatory, Casilla 19001, Santiago 19, Chile, Чилі
  • F. Musaev Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, Karachai-Cherkessian Republic, 357147, Russia; International Center for Astronomical, Medical, and Ecological Research, Terskol, Kabarda-Balkarian Republic, 361605, Russia, Російська Федерація

DOI:

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

Ключові слова:

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

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.

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.

##submission.downloads##

Опубліковано

2008-12-20

Номер

Том 21 (2008)

Розділ

Статті

Ліцензія

Авторське право (c) 2016 Odessa Astronomical Publications

Creative Commons License

Ця робота ліцензується відповідно до Creative Commons Attribution-NonCommercial 4.0 International License.

Відповідно Закону України про авторське право і суміжні права N 3792-XII від 23 грудня 1993 року