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2. X-Ray Astronomy

Published online by Cambridge University Press:  25 April 2016

K A Pounds

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The period leading up to the last IAU General Assembly was dominated in X-ray Astronomy by the results from the Einstein Observatory. This first application of a large, satellite-borne, high resolution X-ray telescope to the study of cosmic sources had led, by the end of orbital operation in April 1981, to the detection of X-ray fluxes from a wide variety of astronomical objects and the full maturing of X-ray Astronomy. During the past three years a strong scientific output has continued to flow from the analysis of the more than 5600 separate Einstein observations, many of which are now widely available via the Einstein Data Bank. In sharp contrast, the peak of activity and scientific output from Einstein will apparently be followed, in the United States, by almost a decade with no new X-ray satellite. Fortunately, successful launches have been achieved in both the Japanese and European programmes, with Tenma launched in February 1983 (to join Hakucho in orbit) followed by EXOSAT three months later. Both these new missions have attracted world-wide interest and observing time on both is at a premium. Of a range of instruments on board the Tenma satellite the most productive is proving to be the large (~800 cm2) array of gas scintillation proportional counters. These detectors, flown for the first time on Tenma (and EXOSAT), provide a factor-of-two increase in spectral resolution over the more conventional proportional counters, an advantage which is particularly valuable in resolving the key emission line and absorption features associated with the K-shell of iron, near ~7 keV. One particularly exciting result reported from this Tenma instrument was an apparent absorption feature at ~4.1 keV in X-ray burst spectra from the source 2S 1636-536 (later supported by EXOSAT observations), the feature being attributed to red-shifted iron absorption in the strong gravitational field close to the neutron star burst source! At the time of writing (December 1984) a power storage problem is limiting the operational efficiency of Tenma, but the scientific payload continues to function well.

Type
Research Article
Information
Transactions of the International Astronomical Union , Volume 19 , Issue 1 , 1985 , pp. 616 - 625
Copyright
Copyright © Reidel 1985

References

Andrews, M., Basart, J., Lamb, R. and Becker, R. (1983) Ap. J. 266, 684.CrossRefGoogle Scholar
Arnaud, M., Ballet, J., Rocchia, R. and Rothenflug, R. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Aschenbach, B. et al., (1985) To be published.Google Scholar
Barat, C. et al. (1984) Ap. J. 286, L5.CrossRefGoogle Scholar
Barstow, M.A., (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Bechtold, J. et al. (1983) Ap. J. 265, 26.CrossRefGoogle Scholar
Becker, R., Helfand, D. and Szymkowiak, A. (1982) Ap. J. 255, 557.CrossRefGoogle Scholar
Bradt, H. and McClintock, J.E. (1983) Ann. Rev. Astron. and Ap. 21, 13.CrossRefGoogle Scholar
Caillault, J.P. and Helfand, D. (1982) B.A.A.S. 13, 811.Google Scholar
Caillault, J.P. and Helfand, D.J. (1985) Ap. J. 289, in press.CrossRefGoogle Scholar
Canizares, CR. and Kruper, J. (1984) Ap. J. 278, L99.CrossRefGoogle Scholar
Charles, P.A. et al. (1983) Mon. Not. R. astr. Soc. 202, 657.CrossRefGoogle Scholar
Cline, T.L. et al. (1984) Ap. J. 286, L15.CrossRefGoogle Scholar
Cominsky, L.R. and Wood, K.S. (1984) Ap. J. 283, 765.CrossRefGoogle Scholar
Cordova, F.A., Chester, T.J., Mason, K.O., Kahn, S.M. and Garmire, G.P. (1984) Ap. J. 278, 739.CrossRefGoogle Scholar
Cordova, F.A. and Mason, K.O. (1983) Ch. 4 in “Accretion driven stellar X-ray sources” (CU.P.) Eds. Lewin, and van den Heuvel, .Google Scholar
Courvoisier, T., Parmar, A. and Peacock, A. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Cowley, A.P., Crampton, D. and Hutchings, J.B. (1982) Ap. J. 255, 596.CrossRefGoogle Scholar
Crampton, D., Cowley, A.P., Hutchings, J.B., Schade, D.J. and van Speybroeck, L.P.(1984) Ap. J. 284, 663.CrossRefGoogle Scholar
Culhane, J.L., White, N.E., Kahn, S., Parmar, A.N., Blissett, R.J. and Kellett, B. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Fabbiano, G., Fransson, C., Palumbo, G.C. and Trinchieiri, G. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Fabian, A.C., Hu, E.M., Cowie, L.L. and Grindlay, J. (1981) Ap. J. 248, 47.CrossRefGoogle Scholar
Fahlman, G.G. and Gregory, P.C. (1983) in “Supernova remnants and their X-ray emission” (Reidel) Eds. Danziger, and Gorenstein, , P445.Google Scholar
Forman, W., Jones, C., & Tucker, W. (1984) in “Large Scale Structure of the Universe” Proc. Trieste Meeting.Google Scholar
Gioia, I.M., et al. 1984) Ap. J. 283, 495.CrossRefGoogle Scholar
Grindlay, J.E. et al. (1978) Nature 274, 567.CrossRefGoogle Scholar
Grindlay, J.E., Hertz, P., Steiner, J.E., Murray, S.S. and Lightman, A.P. (1984) Ap. J. 282, L13.CrossRefGoogle Scholar
Hartwick, F., Cowley, A. and Grindlay, J. (1982) Ap. J. 254, L11.CrossRefGoogle Scholar
Hertz, P. and Grindlay, J.E. (1983) Ap. J. 275, 105.CrossRefGoogle Scholar
Holt, S.S. (1983) “Supernova remnants and their X-ray emission” (Reidel) Ed. Danziger, and Gorenstein, , P17.Google Scholar
Holt, S.S. et al. 1980) Ap. J. 241, L13.CrossRefGoogle Scholar
Horstman, H., Balunias, S., Cecchini, S., Palumbo, C.G., Ramond, J.C. and Rosso, C. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Jones, C. and Forman, W. (1984) Ap. J. 276, 38.CrossRefGoogle Scholar
Jones, L.R., Pye, J.P. and Culhane, J.L. (1984) Proc. Bologna Symposium on X-ray Astronomy – to be published by ISAS.Google Scholar
Jones, L.R., Pye, J.P. and McHardy, I.M. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Kahn, S.M., Wesemael, F., Liebert, J., Raymond, J.C., Steiner, J.E. and Shipman, H.L. (1984) Ap. J. 278, 255.CrossRefGoogle Scholar
Kellett, B.J. (1985) Proc. 18th Symposium on X-ray Astronomy (Reidel).Google Scholar
Kelley, R.L., Jernigan, J.C., Levine, A., Petro, L.D. and Rappaport, S. (1983) Ap. J. 264, 568.CrossRefGoogle Scholar
King, A.R. (1985) Proc. 12th Texas Symposium on Relativistic Astrophysics (N.Y. Acad. Sci.)Google Scholar
Ku, W.H.M., Kahn, S.M., Pisarski, R.L. and Long, K.S. (1984) Ap. J. 278, 615.CrossRefGoogle Scholar
Lewin, W.H.G. and van den Heuvel, E.P. (1983) Eds. of “Accretion driven stellar X-ray Sources” (C.U.P.).Google Scholar
Lucy, L.B. and White, R. L. (1980) Ap. J. 241, 300.CrossRefGoogle Scholar
Lucy, L.B. (1982) Ap. J. 255, 286.CrossRefGoogle Scholar
McClintock, J.E. et al. (1982) Ap. J. 258, 245.CrossRefGoogle Scholar
Maejima, Y., Makishima, K., Matsuoka, M., Ogawara, Y. and Oda, M. (1984) Ap. J. 285, 712.CrossRefGoogle Scholar
Mandelstam, S.L. et al. (193) Adv. Space. Res. 2, 293.CrossRefGoogle Scholar
Mathewson, D. et al. (1983) “Supernova remnants and their X-ray emission” (Reidel) Eds. Gorenstein, Danziger, P541.Google Scholar
Matsuoka, M. et al. (1984) Ap. J. 283, 774.CrossRefGoogle Scholar
Meekins, J.F. et al. (1984) Ap. J. 278, 288.CrossRefGoogle Scholar
Mewe, R. et al. (1981) in ‘Cambridge Cool Star Workshop’ Ed. Dupree, .Google Scholar
Montmerle, T., Koch-Miramond, L., Falgarone, E. and Grindlay, J.E. (1983) Ap. J. 269, 182.CrossRefGoogle Scholar
Motch, C., Pedersen, H., Ilovaisky, S.A., Chevalier, C. and Pakull, M.W. (1984) Proc. Bologna Symposium – to be published by ISAS.Google Scholar
Mushotzky, R.F. (1984) NASA Tech. Memo. 86071.Google Scholar
Nagase, F. et al. (1984) Ap. J. 280, 259.CrossRefGoogle Scholar
Nulsen, P.E.J., et al. (1982) Mon. Not. R. astr. Soc. 199, 1089.CrossRefGoogle Scholar
Nulsen, P.E.J., Stewart, G.C. and Fabian, A.C. (1984) Mon. Not. R. astr. Soc. 208, 185.CrossRefGoogle Scholar
Page, C.G. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Parmar, A.N., Culhane, J.L., White, N.E. and van den Oord, G.H.J. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Pedersen, H., van Paradijs, J. and Lewin, W.H.G. (1981) Nature 294, 725.CrossRefGoogle Scholar
Petre, R., Canizares, C.R., Kriss, G.A. and Winkler, P.F. (1982) Ap. J. 258, 22.CrossRefGoogle Scholar
Pisarski, R.L., Helfand, D.J. and Kahn, S.M. (1984) Ap. J. 277, 710.CrossRefGoogle Scholar
Pounds, K.A. (1984) Proc. Bologna Symposium on X-ray Astronomy – to be published by ISAS.Google Scholar
Pounds, K.A., Warwick, R.S., Culhane, J.L. and de Korte, P. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Pye, J.P. and McHardy, I.M. (1983) Mon. Not. R. astr. Soc. 205, 875.CrossRefGoogle Scholar
Pye, J.P. (1984) MPE Report 184 “X-ray and UV emission from AGN”. Eds Brinkman, and Trumper, P261.Google Scholar
Pye, J.P., Pounds, K.A., Rolf, D.P., Seward, F.D., Smith, A. and Willingale, R. (1981), Mon. Not. R. astr. Soc. 194, 569.CrossRefGoogle Scholar
Rappaport, S. and ven den Heuvel, E.P. (1982) Proc. IAU Symposium 98 on “Be Stars” (Reidel) Eds. Jaschek, and Groth, . p327.Google Scholar
Remillard, R.A. and Canizares, C.R. (1984) Ap. J. 278, 761.CrossRefGoogle Scholar
Schaefer, B.E. (1981) Nature 294, 722.CrossRefGoogle Scholar
Schaefer, B.E. et al. (1984) Ap. J. 286, L1.CrossRefGoogle Scholar
Schmitt, J., Golub, L., Harnden, F.R., Maxson, C.W., Rosner, R. and Vaiana, G.(1985) Ap. J. to be published.Google Scholar
Seward, F.D. (1983) in “Supernova remnants and their X-ray emission” (Reidel) Eds. Danziger, and Gorenstein, , P405.Google Scholar
Seward, F.D., Gorenstein, P. and Tucker, W. (1983) Ap. J. 266, 287.CrossRefGoogle Scholar
Seward, F.D. and Harnden, F.R. (1982) Ap. J. 256, L45.CrossRefGoogle Scholar
Stanger, V. J. (1985) Ph. D. Thesis, University of Leicester.Google Scholar
Steiner, J.E. et al. (1984) Ap. J. 280, 688.CrossRefGoogle Scholar
Stern, R.A., Zolcinski, M.C., Antioches, S.K. and Underwood, J.H. 1981) Ap. J. 249, 647.CrossRefGoogle Scholar
Stewart, G.C., Fabian, A.C. and Seward, F.D. (1983) “Supernova remnants and their X-ray emission” (Reidel) Ed. Danziger, and Gorenstein, .Google Scholar
Swank, J. and Carsinelli, J.P. (1983) Ap. J. 271, 681.Google Scholar
Swank, J. and Johnson, H.M. (1982) Ap. J. 259, L67.CrossRefGoogle Scholar
Swank, J., White, N.E., Holt, S. and Becker, R. 1981) Ap. J. 246, 208.CrossRefGoogle Scholar
Tuohy, I. and Garmire, G. (1980) Ap. J. 239, L107.CrossRefGoogle Scholar
Trumper, J. (1984) MPE Report 184 “X-ray and UV emission from AGN”. Eds. Brinkman, and Trumper, .Google Scholar
Turner, M.J.L. and Breedon, L.M. (1984) Mon. Not. R. astr. Soc. 208, 29P.CrossRefGoogle Scholar
Vaiana, G.S. et al. et al. (1981) Ap. J. 245, 163.CrossRefGoogle Scholar
Vedder, P.W. and Canizares, C.R. (1983) Ap. J. 270, 666.CrossRefGoogle Scholar
Verbunt, F., van Paradijs, J. & Elson, R. (1984) Mon. Not. R. astr. Soc. 210, 899.CrossRefGoogle Scholar
Vilhu, O., Heise, J. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Waki, I., Inoue, H., Koyama, K. et al. (1984) Pub. Astron. Soc. Japan – in press.Google Scholar
Waldron, W.L. (1981) Wisconsin, U., Thesis.Google Scholar
Warwick, R.S. et al. (1981) Mon. Not. R. astr. 197, 865.CrossRefGoogle Scholar
Watson, M.G., King, A.R. and Heise, J. (1985) Proc. 18th ESLAB Symposium on X-ray Astronomy (Reidel).Google Scholar
Watson, M.G., King, A.R. and Osborne, J. (1985a) Mon. Not. R. astr. Soc.Google Scholar
Watson, M.G., Stanger, V.J. and Griffiths, R.E. (1984) Ap. J. 286, 144.CrossRefGoogle Scholar
Watson, M.G., Warwick, R.S. and Ricketts, M.J. (1981) Mon. Not. R. astr. Soc. 195, 197.CrossRefGoogle Scholar
White, N.E., Parmar, A.N., Sztajno, M. and Zimmermann, H., Mason, K.O. and Kahn, S.M. (1984) Ap. J. 283, L9.CrossRefGoogle Scholar
White, N.E. and Swank, J. (1982) Ap. J. 253, L61.CrossRefGoogle Scholar
Winkler, P.F., Canizares, C.R., Clark, G.W., Markert, T.H., Kalata, K. and Schnopper, H. (1981) Ap. J. 246, L27.CrossRefGoogle Scholar