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Cosmological implications of BL Lac objects

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Abstract

It has become clear in recent years that relativistic beaming is a good explanation for the BL Lac phenomenon. Of studies based on the relativistic beaming model of BL Lac objects, we note that the orientation of jet's axis to the line-of-sight is very small and, therefore, the observed flux emitted from a rapidly moving source is orders of magnitude higher than the flux in its rest-frame:F obs = δ3 + α F intr, where δ is the bulk relativistic Doppler factor. Then the observed apparent magnitudem v must be corrected for this effect. For our 39 samples, the corrected apparent magnitudem corr v and logZ have a good correlation.

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References

  • Allen, D. A., Ward, M. J., and Hyland, A. R.: 1982,Monthly Notices Roy. Astron. Soc. 199, 969.

    Google Scholar 

  • Arp, H., Sargent, W. L. M., Willis, A. G., and Oosterbaan, C. E.: 1979,Astrophys. J. 230, 68.

    Google Scholar 

  • Baldes, J. C., Murcloch, H. S., and Hunsted, R. W.: 1980,Monthly Notices Roy. Astron. Soc. 191, 61.

    Google Scholar 

  • Bassani, L., Dean, A. J., and Sembay, S.: 1983,Astron. Astrophys. 125, 52.

    Google Scholar 

  • Bolton, J. G., Shimmins, A. J., and Merkelijn, J.: 1968,J. Australian J. Phys. 21, 81.

    Google Scholar 

  • Brindle, C., Hough, J. H., Bailey, J. A., Axon, D. J., and Hyland, A. R.: 1986,Monthly Notices Roy. Astron. Soc. 221, 739.

    Google Scholar 

  • Burbidge, G. and Hewitt, A.: 1987,Astron. J. 92, 1.

    Google Scholar 

  • Burbidge, G. and Hewitt, A.: 1988, in L. Maraschi, T. Maccacaro, M.-H. Ulrich (eds.),Lecture Notes in Physics, BL Lac Objects, Springer-Verlag, Berlin, p. 412.

    Google Scholar 

  • Carrasco, L., Dultzin-Hacyan, D. and Cruz-Gonzalez, I.: 1985,Nature 314, 146.

    Google Scholar 

  • Craine, E. R.: 1977,A Handbook of Quasistellar and BL Lac Objects, Publishing House, Tucson.

    Google Scholar 

  • Doxsey, R., Bradt, H., McClintock, J., Petro, L., Remillard, R., Ricker, G., Schwartz, D., and Wood, K.: 1983,Astrophys. J. 264, L43.

    Google Scholar 

  • Fabian, A. C. and Rees, M. J.: 1979, in W. A. Baity and L. E. Peterson (eds.),X-ray Astronomy, Pergamon Press, New York, p. 381.

    Google Scholar 

  • Feigelson, E. D., Bradt, H., McClintock, J., Remillard, R., Urry, C. M., Tapia, S., Geldzahler, B., Johnston, K., Romanishin, W., Wehinger, P. A., Wyckoff, S., Madejski, G., Schwartz, D. A., Thorstensen, J., and Schaefer, B. E.: 1986,Astrophys. J. 302, 337.

    Google Scholar 

  • Filippenko, A. V., Djorgovski, S., Spinard, H., and Sargent, W. L. W.: 1986,Astron. J. 91, 49.

    Google Scholar 

  • Frank, J., King, A. R., and Rain, D. J.: 1985,Accretion Power in Astrophysics, Cambridge University Press, Cambridge.

    Google Scholar 

  • Ghisellini, G., Maraschi, L., Tanzi, E. G., and Treves, A.: 1986,Astrophys. J. 310, 317.

    Google Scholar 

  • Giacani, E. B. and Colomb, F. R.: 1988,Astron. Astrophys. Suppl. 76, 15.

    Google Scholar 

  • Golombek, D.: 1988,Astron. J. 95, 26.

    Google Scholar 

  • Halpern, J. P., Impey, C. D., Bothun, G. D., Tapia, S., Skillman, E. D., Wilson, A. S., and Meurs, E. J. A.: 1986,Astrophys. J. 302, 711.

    Google Scholar 

  • Impey, C. D. and Tapia, S.: 1988,Astrophys. J. 333, 666.

    Google Scholar 

  • Impey, C. D., Brand, P. W. J. L., Wolstencroft, R. D., and Williams, P. M.: 1982,Monthly Notices Roy. Astron. Soc. 200, 19.

    Google Scholar 

  • Kuhr, H. and Schmidt, G. D.: 1990,Astron. J. 99, 1.

    Google Scholar 

  • Ledden, J. E. and O'Dell, S. L.: 1985,Astrophys. J. 298, 630.

    Google Scholar 

  • Madejski, G. M. and Swartz, D. A.: 1983,Astrophys. J. 275, 467.

    Google Scholar 

  • Maraschi, L., Ghisellini, G., Tanzi, E. G., and Treves, A.: 1986Astrophys. J. 310, 325.

    Google Scholar 

  • Miller, J. S.: 1975,Astrophys. J. 200, L55.

    Google Scholar 

  • Miller, J. S., French, H. B., and Hawley S. A.: 1978, in A. M. Wolfe (ed.)Pittsburgh Conference on BL Lac Objects, University of Pittsburgh Press, Pittsburgh, p. 176.

    Google Scholar 

  • Moles, M., Garcia-Pelayo, J. M., Masegosa, J., and Aparicio, A.: 1985,Astrophys. J. Suppl. Ser. 58, 255.

    Google Scholar 

  • Persic, M: 1984, Ph.D. Thesis.

  • Preston, R. A., Morabito, D. D., Williams, J. G., Faukner, J., Jauncey, D. L. and Nicolson, G. D.: 1985,Astron. J. 90, 1599.

    Google Scholar 

  • Schalinski, C. J.: 1987,Astron. J.,94, 1493.

    Google Scholar 

  • Smith, P. S., Balonek, T. J., Elston, R., and Heckert, P. A.: 1987,Astrophys. J. Suppl. Ser. 64, 459.

    Google Scholar 

  • Spinrad, H. and Smith, H. E.: 1975,Astrophys. J. 201, 275.

    Google Scholar 

  • Staubert, R., Brunner, H., and Worral, D. M.: 1986,Astrophys. J. 310, 694.

    Google Scholar 

  • Stein, W. A., O'Dell, S. L., and Strittmatter P. A.: 1976,Ann. Rev. Astron. Astrophys. 14, 173.

    Google Scholar 

  • Stick, M., Freid, J. W. and Kuhr, H.: 1988,Astron. Astrophys. 191, L16.

    Google Scholar 

  • Stocke, J. T., Liebert, J., Gioia, I. M., Griffiths, R. E., Maccacaro, T., Danziger, I. J., Kunth, D., and Lub, J.: 1983,Astrophys. J. 273, 458.

    Google Scholar 

  • Stocke, J. T., Liebert, J., Schmidt, G., Gioia, I. M., Maccacaro, T., Schild, R. E., Maccagni, D., and Arp, H. C.: 1985,Astrophys. J. 298, 619.

    Google Scholar 

  • Strittmatter, P. A., Serkowski, K., Carswell, R., Srein, W. A., Merrill, K. M., and Burbidge, E. M.: 1972,Astrophys. J. 175, L7.

    Google Scholar 

  • Treves, A., Ghisellini, G., Maraschi, L., and Tanzi, E. G.: 1986, in G. Giuricin (ed.),Structure and Evolution of Active Nuclei, Vol 63, p. 80.

  • Urry, C. M.: 1984, Ph.D. Thesis, Hopking University, NASA, Tech. Memo No. 86103.

  • Valtaoja, E., Lehto, H., Terikorpia, P., Korhonen, T., Valtonen, M., Terasraanta, H., Salonen, E., Urpo, S., Tiuri, M., Piirola, V., and Saslaw, W. C.: 1985,Nature,314, 148.

    Google Scholar 

  • Verson-Cetty, M.-P. and Verson, P.: 1987,ESO Sci. Rep. No. 5.

  • Weinberg, S.: 1972,Gravitation and Cosmology, John Wiley, New York, p. 324.

    Google Scholar 

  • Wills, B. J., Pollock, J. T., Aller, H. D., Aller, M. F., Balonek, T. J., Barvainis, R. E., Binzel, R. P. et al.: 1983,Astrophys. J. 274, 62.

    Google Scholar 

  • Wing, R. F.: 1973,Astron. J. 78, 684.

    Google Scholar 

  • Worrall, D. M.: 1986,Astrophys. J. 303, 589.

    Google Scholar 

  • Xie, G. Z., Li, K. H., Bao, M. X., Hao, P. J., Zhou, Y., and Liu, X. D.: 1987,Astron. Astrophys Suppl. Ser. 67, 17.

    Google Scholar 

  • Xie, G. Z., Li, K. H., Zhou, Y., Lu, R. W., Wang, J. C., Cheng, F. Z., Wu, J. X., Zhou, Y. Y.: 1988a,Astron. J. 96, 24.

    Google Scholar 

  • Xie, G. Z., Lu, R. W., Zhou, Y., Hao, P. J., Zhang, Y., Li, X. Y., and Wu, J. X.: 1988b,Astron. Astrophys. Suppl. Ser. 72, 163.

    Google Scholar 

  • Xie, G. Z., Li, K. H., Cheng, F. Z., Hao, P. J., Li, Z. L., and Li, G. H.: 1990a,Astron. Astrophys. 229, 329.

    Google Scholar 

  • Xie, G. Z., Li, K. H., Cheng, F. Z., Lu, R. W., Liu, F. K., Liu, B. F., Hao, P. J., and Liu, Z. H.: 1990b,Astron. Astrophys. Suppl. (in press).

  • Xie, G. Z., Liu, F. K., Liu, B. F., Lu, R. W., Li, K. H., and Zhu, Y. Y.: 1990c,Astron. Astrophys. (submitted).

  • Xie, G. Z., Lu, J. F., Wu, J. X., Lu, R. W., and Hao, P. J.: 1989,Astron. Astrophys. 220, 89.

    Google Scholar 

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Xie, G.Z., Liu, F.K., Zhu, Y.Y. et al. Cosmological implications of BL Lac objects. Astrophys Space Sci 179, 321–329 (1991). https://doi.org/10.1007/BF00646952

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