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Survey On New Techniques for X-Ray Astronomy

Published online by Cambridge University Press:  14 August 2015

Riccardo Giacconi
Riccardo Giacconi*
Affiliation:
American Science and Engineering, Inc., Cambridge, Mass., U.S.A.

Abstract

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The limitations imposed in X-ray astronomy observations by the use of sounding rockets with their inherent short time for observations and restricted payload capabilities will soon be surmounted when the new generation of X-ray experiments carried aloft by earth orbitting satellites is launched.

In the early 1970's several payloads included in the spacecrafts SASA, OSOH, SAS C, OSO 1, UK 5 and ANS will perform high sensitivity surveys of the entire celestial sphere. As a result of these experiments we expect to: increase the sensitivity of our observations by a factor of approximately 100; to improve the measurement of location on all known sources and on newly discovered ones to an accuracy of ½ to 6 arc min; to acquire more definite information on rapid time variations of the X-ray sources; to measure the polarization of the incoming X-ray radiation to several per cent for the strongest sources; and, finally, to determine for the strongest sources the existence of emission lines or absorption edges to the accuracy required to confirm or disprove present theories of source of emission processes and interstellar absorption.

Beyond these surveys a new generation of X-ray instrumentation utilizing focussing X-ray telescopes is in the planning stage. These instruments will yield a qualitative advance in the type of observations that can be performed. Location and structure of X-ray sources can be determined with these techniques to precisions of a few arc seconds to a limiting surface brightness of 10−14 erg/cm2 s (arc s2). Spectroscopy of the strongest sources can be carried out with energy resolutions λ/Δλ of 103 to 104. Polarization measurements can be carried out to a few per cent on the Crab and rapid varying events can be followed with a time resolution of 10−4 s.

A summary of the instrumentation will be given from the point of view of the developments and improvements which are being carried out to achieve the observational goals mentioned above.

Type
Part II: X-ray Astonomy
Information
Symposium - International Astronomical Union , Volume 41: New Technique in Space Astronomy , 1971 , pp. 104 - 133
Copyright
Copyright © Reidel 1971 

References

Angel, J. R. P., and Weisskopf, M. C.: 1970, Astron. J. 75, 231.CrossRefGoogle Scholar
Angel, J. R. P., Novick, R., VandenBout, P., and Wolff, R.: 1969, Phys. Rev. Letters 22, 861.Google Scholar
Blake, R. L., Chubb, T. A., Friedman, H., and Unzicker, A. E.: 1965, Astrophys. J. 1, 142.Google Scholar
Cornell, C. M., Grader, R. J., Harris, J. H., Hill, R. W., Rumble, R. P., and Salmi, D.S.: 1971, Rev. Sci. Instr. (to be published).Google Scholar
de Jager, C.: 1967, in Highlights of Astronomy presented at the XIII General Assembly of the IAU, 1967.Google Scholar
Egidi, A., Marconero, R., Pizella, G., and Sperli, F.: 1969, Rev. Sci. Instr. 40, 88.Google Scholar
Evans, K. and Pounds, K. A.: 1968, Astrophys. J. 152, 319.Google Scholar
Fisher, P. C. and Meyerott, A. J.: 1966, IEEE Trans. Nucl. Sci. NS-13-580.Google Scholar
Giacconi, R. and Rossi, B.: 1960, J. Geophys. Res. 65, 773.Google Scholar
Giacconi, R. and Rossi, B.: 1961, U.S. Patent 3, 143, 651, filed February 23.Google Scholar
Giacconi, R., Reidy, W. P., Zehnpfennig, T., Lindsay, J. C., and Muney, W. S.: 1965 Astrophys. J. 142, 1274.CrossRefGoogle Scholar
Giacconi, R., Gorenstein, P., Gursky, H., Kellogg, E. M., and Tananbaum, H.: 1968a. ‘The X-ray Explorer Experiment’, ASE-2149.Google Scholar
Giacconi, R., Gursky, H., and Van Speybroeck, L. P.: 1968b, Ann. Rev. Astron. Astrophys. 6, 373.Google Scholar
Giacconi, R., Reidy, W. P., Vaiana, G. S., Van Speybroeck, L. P. and Zehnpfennig, T. F.: 1969, Space Sci. Rev. 9 3–57.CrossRefGoogle Scholar
Goodrich, G. W. and Wiley, W. C.: 1962, Rev. Sci. Instr. 33, 761.Google Scholar
Gorenstein, P., Harris, B., Gursky, H., and Giacconi, R.: 1971, this volume, p. 183.CrossRefGoogle Scholar
Gursky, H.: 1970, in Gratton, L. (ed.) ‘Non-Solar X- and Gamma-Ray Astronomy’, IAU Symp. 37, 5.Google Scholar
Gursky, H., Giacconi, R., Gorenstein, P., Waters, J. R., Oda, M., Bradt, H., Garmire, G., and Sreekantan, B. V.: 1966, Astrophys. J. 144 and 146, 317 Google Scholar
Kirkpatrick, P. and Baez, A. V.: 1948, J. Opt. Soc. Am. 38, 766.CrossRefGoogle Scholar
Kitamura, T., Migamoto, S., Nakagawa, M., and Takagishi, T.: 1969, Space Res. 9, North-Holland Publ. Co., Amsterdam.Google Scholar
Mathieson, E. and Sanford, P. W.: Proc. Intern. Symp. Nucl. Electron. Paris, p. 65.Google Scholar
Mertz, L.: 1968, Proceeding of the Symposium on Modern Optics, Polytechnic Institute of Brooklyn, March 1967.Google Scholar
Neupert, W. M., Gates, W., Swartz, M., and Young, R.: 1967, Astrophys. J. Letters 149, L79.Google Scholar
Oda, M.: Appl. Opt. 4, 143.Google Scholar
Oda, M., Bradt, H., Garmire, G., Spada, G., Sreekantan, B. V., Gursky, H., Giacconi, R., Gorenstein, P., and Waters, J. R.: Astrophys. J. 1967, 148, L5.CrossRefGoogle Scholar
Schnopper, H. W. and Kalata, K.: 1969a, Applied. Phys. Letters 15, 134.Google Scholar
Schnopper, H. W. and Kalata, K.: 1969b, Astron. J. 74, 854.CrossRefGoogle Scholar
Schnopper, H. W., Thompson, R. I., and Watt, S.: 1968, Space Sci. Rev. 8 534–42.Google Scholar
Schnopper, H. W., Bradt, H. V., Rappaport, S., Bengdran, E., Burnett, B., Doxsey, R., Mayer, W., and Watt, S.: 1970, to be published.Google Scholar
Underwood, J. H. and Muney, W. S.: 1967, Solar Phys. 1, 129.CrossRefGoogle Scholar
Vaiana, G. S., Reidy, W. P., Zehnpfennig, T., Van Speybroeck, L., and Giacconi, R.: 1968, Science 161, 465.CrossRefGoogle Scholar
Walker, A. B. C., Rugge, H. R., Chater, W. T., and Howey, C. K.: 1967, Trans. Am. Geophys. Union 48, 151.Google Scholar
Wolber, W. G., Klettke, B. D., and Lintz, H. K.: 1969, Rev. Sci. Instr. 40, 1364.CrossRefGoogle Scholar
Wolter, H.: 1952, Ann. Physik 10, 94 and 286.Google Scholar
X-ray Astronomy Groups at AS&E, Columbia University, Goddard Space Flight Center, and MIT, – Preliminary Study: ‘Telescopes and Scientific Subsystems for a High Energy Astronomy Observatory’; 1 August 1969, Revised 26 September 1969, ASE-2266-A.Google Scholar