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X-ray intensity variations in BL Lac sources H2155-304 and PKS 0548-322

  • P.C. Agrawal (a1), K.P. Singh (a1) and G.R. Riegler (a2)

Abstract

The X-ray Observations of two BL Lac Objects H2155-304 and PKS 0548-322 made with HRI and MPC on the Einstein Observatory show intensity variations on time scale of hours in both the sources. X-ray spectra of the two BL Lacs are derived. Limits on the mass of the accreting compact objects are obtained from time scale and magnitude of variations. Implications of the results are briefly discussed.

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Copyright

References

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Agrawal, P.C. and Riegler, G.R. 1979, Ap. J. (Letters), 231, L25.
Snyder, W.A. et al. 1980, Ap. J. (Letters), 237, L11.
Urry, C.M. 1984, (NASA Technical Memorandum 86103).
Mushotzky, R.F. et al. 1979, Ap. J. (Letters), 232, L17.
Worrall, D.M. et al. 1981, Ap. J., 243, 53.

X-ray intensity variations in BL Lac sources H2155-304 and PKS 0548-322

  • P.C. Agrawal (a1), K.P. Singh (a1) and G.R. Riegler (a2)

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