Pulsating Stars in the ASAS-3 Database. I. β Cephei Stars

• Autorzy: Piguslki, A.
• Języki publikacji: EN

Abstrakty

EN

We present results of an analysis of the ASAS-3 data for short-period variables from the recently published catalog of over 38 000 stars. Using the data available in the literature we verify the results of the automatic classification related to β Cep pulsators. In particular, we find that 14 stars in the catalog can be classified unambiguously as new β Cep stars. By means of periodogram analysis we derive the frequencies and amplitudes of the excited modes. The main modes in the new β Cep stars have large semi-amplitudes, between 35 and 80 mmag. Up to four modes were found in some stars. Two (maybe three) new β Cep stars are members of southern young open clusters: ASAS 164409-4719.1 belongs to NGC 6200, ASAS 164630-4701.2 is a member of Hogg 22, and ASAS 164939-4431.7 could be a member of NGC 6216. We also analyze the photometry of four known β Cep stars in the ASAS-3 catalog, namely IL Vel, NSV 24078, V1449 Aql and SY Equ. Finally, we discuss the distribution of β Cep stars in the Galaxy.

Słowa kluczowe

EN

stars: early type; stars: oscillations; stars: variables: other

• Czasopismo: Acta Astronomica
• Rocznik: 2005
• Tom: Vol. 55, No. 2
• Strony: 219--236
• Opis fizyczny: Bibliogr. 51 poz., rys., tab., wykr.

Twórcy

autor

Piguslki, A.

• Astronomical Institute, Wrocław University, ul. Kopernika 11, 51-622 Wrocław, Poland ,

Bibliografia

• Aerts, C. 2000, Astron. Astrophys., 361, 245.
• Clayton, G.C., Gordon, K.D., and Wolff, M.J. 2000, Astrophys. J. Suppl. Ser., 129, 147.
• Dachs, J., Kaiser, D., Nikolov, A., and Sherwood,W.A. 1982, Astron. Astrophys. Suppl. Ser., 50, 261.
• Dufton, P.L., et al. 1998, MNRAS, 297, 565.
• FitzGerald, M.P. 1987, MNRAS, 229, 227.
• FitzGerald, M.P., Jackson, P.D., and Moffat, A.F.J. 1977, The Observatory, 97, 129.
• Forbes, D., and Short, S. 1996, Astron. J., 111, 1609.
• Garrison, R.F., Hiltner, W.A., and Schild, R.E. 1977, Astrophys. J. Suppl. Ser., 35, 111.
• Hambly, N.C., et al. 1996, Astron. Astrophys., 306, 119.
• Handler, G., Shobbrook, R.R., Vuthela, F.F., Balona, L.A., Rodler, F., and Tshenye, T. 2003, MNRAS, 341, 1005.
• Haug, U. 1977, The ESO Messenger, 9, 14.
• Haug, U. 1979, Astron. Astrophys., 80, 119.
• Heynderickx, D., and Haug, U. 1994, Astron. Astrophys. Suppl. Ser., 106, 79.
• Hill, P.W., Kilkenny, D., and van Breda, I.G. 1974, MNRAS, 168, 451.
• Hogg, A.R. 1965, PASP, 77, 440.
• Houk, N. 1978, Michigan Spectral Survey, Ann Arbor, Dep. Astron., Univ. Michigan, 2.
• Houk, N. 1982, Michigan Spectral Survey, Ann Arbor, Dep. Astron., Univ. Michigan, 3.
• Houk, N., and Cowley, A.P. 1975, Michigan Spectral Survey, Ann Arbor, Dep. Astron., Univ. Michigan, 1.
• Houk, N., and Smith-Moore, M. 1988, Michigan Spectral Survey, Ann Arbor, Dep. Astron., Univ. Michigan, 4.
• Jerzykiewicz, M., and Pigulski, A. 1996, MNRAS, 282, 853.
• Klare, G., and Neckel, T. 1977, Astron. Astrophys. Suppl. Ser., 27, 215, KN77.
• Knude, J. 1992, Astron. Astrophys. Suppl. Ser., 92, 841.
• Lahulla, J.F., and Hilton, J. 1992, Astron. Astrophys. Suppl. Ser., 94, 265.
• Lesh, J.R., and Aizenman, M.L. 1973, Astron. Astrophys., 26, 1.
• Lynn, B.B., et al. 2002, MNRAS, 336, 1287.
• Moffat, A.F.J., and Vogt, N. 1973, Astron. Astrophys. Suppl. Ser., 10, 135.
• Nesterov, V.V., Kuzmin, A.V., Ashimbaeva, N.T., Volchkov, A.A., Röser, S., and Bastian, U. 1995, Astron. Astrophys. Suppl. Ser., 110, 367.
• Paczyński, B. 1997, Proc. of the 12th IAP Colloquium:, “Variable stars and the astrophysical returns of microlensing surveys”, Eds. R. Ferlet, J.-P.Maillard, and B.Raban, p. 357.
• Paczyński, B. 2000, PASP, 112, 1281.
• Paczyński, B. 2001, A.S.P. Conf. Ser., 246, 45.
• Piatti, A.E., Clariá, J.J., and Bica, E. 2000, Astron. Astrophys., 360, 529.
• Pigulski, A. 2004, Comm. in Asteroseismology, 145, 72.
• Pigulski, A., Kopacki, G., Kołaczkowski, Z., and Jerzykiewicz, M. 2002, A.S.P. Conf. Ser., 259, 146.
• Pojmański, G. 1997, Acta Astron., 47, 467.
• Pojmański, G. 2002, Acta Astron., 52, 397.
• Pojmański, G. 2003, Acta Astron., 53, 341.
• Pojmański, G., and Maciejewski, G. 2004, Acta Astron., 54, 153.
• Pojmański, G., and Maciejewski, G. 2005, Acta Astron., 55, 97.
• Reed, B.C. 1993, Astron. J., 106, 2291.
• Reed, B.C., and Vance, S.J. 1996, Astron. J., 112, 2855.
• Roslund, C. 1964, Arkiv für Astron., 3, 357.
• Roslund, C. 1966, Arkiv für Astron., 4, 73.
• Rodríguez, E., and Breger, M. 2002, A.S.P. Conf. Ser., 259, 328.
• Sartori, M.J., Lépine, J.R.D., and Dias, W.S. 2003, Astron. Astrophys., 404, 913.
• Schild, R.E., Garrison, R.F., and Hiltner, W.A. 1983, Astrophys. J. Suppl. Ser., 51, 321.
• Stankov, A., and Handler, G. 2005, Astrophys. J. Suppl. Ser., 158, 193.
• Stothers, R., and Frogel, J.A. 1974, Astron. J., 79, 456.
• Waelkens, C., and Rufener, F. 1988, Astron. Astrophys., 201, L5.
• Waelkens, C., Aerts, C., Kestens, E., Grenon, M., and Eyer, L. 1998, Astron. Astrophys., 330, 215.
• Walborn, N.R. 1971, Astrophys. J. Suppl. Ser., 23, 257.
• Whiteoak, J.B. 1963, MNRAS, 125, 105.