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Multifrequency Observations of Blazars

  • E I Robson (a1), W K Gear (a1) and L M J Brown (a1)

Abstract

This paper reports the results of a programme of multifrequency observations of a sample of Blazars concentrating particularly on the millimetre through infrared region. Our observations have demonstrated the need for a new model to explain the spectral behaviour of a major flare in 3C273. This also provides a good description of the variability exhibited by Blazars. We have also shown that the radio through mid-IR synchrotron spectrum of 3C273 is a separate component from the optical/IR.

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Copyright

References

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1 Robson, E.I. 1983 RAL-85-086, ed Gondhalekar, .
2 Gear, W.K. et al 1984, Ap. J., 280, 102.
3 Clegg, P.E. et al 1983, Ap. J., 273, 58.
4 Gear, W.K. et al 1985, Ap. J., 291, 511.
5 Gear, W.K. et al 1983 Nature, 303, 46.
6 Bregman, J.L. et al. 1986 Ap. J. 301, 708.
7 Gear, W.K. et al 1986 Ap. J., 304, 295.
8 Brown, L.M.J. et al 1986 in preparation.
9 Gear, Robson & Brown 1986 submitted to Nature.
10 Marscher & Gear 1986 Ap. J., 298, 114.
11 Brown, L.M.J. et al 1986, MNRAS, 219, 671.
12 Barbieri, C. et al 1985 Ast. Astrophys. 142, 316.
13 Marscher, A.P., 1980, Ap. J., 235, 386.
14 Neugebauer, G. et al 1979, Ap. J. 230, 79.
15 Ennis, Neugebauer, & Werner 1982, Ap. J., 262, 460.
16 Robson, E.I. et al 1983, Nature, 305, 194.
17 Robson, E.I. et al 1986, Nature, in press.
18 Courvoisier, T.J.-L et al. in preparation.

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