Abstract
Perhaps the most enigmatic and elusive of the short time scale astrophysical phenomena observed so far are the γ-ray bursts discovered in the Vela satellite data in 19731. After a decade of observational and theoretical work, there is still no agreement on a model for the radiation detected or for the type of astronomical system responsible. We have conducted a search of the Columbia Astrophysics Laboratory's Einstein imaging proportional counter (IPC) database for possible X-ray counterparts to these transient events. The limiting sensitivity was ∼10−10 erg cm−2 with a total exposure of ∼3×106s divided amongst ∼103 1°×1° fields. Four events with a pointlike spatial distribution were detected but their extremely soft spectra (kT ≤ 0.1 keV) makes them unlikely candidates for γ-ray burst counterparts. We use our results here to place limits on the X-ray and γ-ray luminosity ratio and log (number) N–log (flux) S relation for γ-ray bursts, and comment on the constraints placed on models for their origin.
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References
Klebesadel, R. W., Strong, I. B. & Olson, R. A. Astrophys. L. Lett. 182, L85–L88 (1973).
Klebesadel, R. W. et al. in Gamma-Ray Transients and Related Astrophysical Phenomenon AIP Conf. Proc. No. 77, 1–16 (1981).
Cline, T. L. et al. Astrophys. J. Lett. 237, L1–L5 (1980).
Jakobson, A. M. et al. Gamma-Ray Spectroscopy in Astrophysics (eds Cline, T. L. & Ramaty, R.) 228 (NASA Technical Memorandum No. 79619).
Klebesadel, R. et al. Astrophys. J. Lett. 259, L51–L56 (1982).
Hurley, K. in Gamma-Ray Transients and Related Astrophysical Phenomenon AIP Conf. Proc. No. 77, 85–99 (1981).
Baird, G. A. et al. Astrophys. Space Sci. 42, 69–72 (1976).
Cortiglioni, S. et al. Astrophys. Space Sci. 75, 153–161 (1981).
Grindlay, J. et al. Astrophys. J. Lett. 192, L113–L114 (1974).
Schaeffer, B. Nature 294, 722–724 (1981).
Grindlay, J. et al. Nature 300, 730–733 (1982).
Terell, J. et al. Astrophys. J. 254, 279–286 (1981).
Mitrofanov, I. G. Astrophys. Space Sci. 80, 303–306 (1981).
Woosley, S. E. & Wallace, R. K. Astrophys. J. 258, 716–732 (1982).
Van Buren, D. Astrophys. J. 249, 297–301 (1981).
Giacconi, R. et al. Astrophys. J. 230, 540–550 (1979).
Majets, E. P. Astrophys. Space Sci. 80, 3–143 (1981).
Oort, J. M. A. Rev. Astr. Astrophys. 15, 295–362 (1977).
Schmidt, M. Bull. astr. Institutes of the Netherlands 13, 15–41 (1956).
Allen, C. W. Astrophysical Quantities (Athlone, London, 1973).
Vedrenne, G. Phil. Trans. R. Soc. A301, 645–658 (1981).
Jennings, M. C. & White, R. S. Astrophys. J. 238, 110–121 (1980).
Fishman, G. I., Meegan, C. A., Watts, J. W. & Derrickson, J. H. Astrophys. J. Lett. 223, L13–L15 (1978).
Cline, T. L. & Desai, U. D. Astrophys. Space Sci. 42, 17–27 (1976).
Agrawal, P. C., Damle, S. V., Gokhale, G. S., Naranan, S. & Sreekantan, B. V. COSPAR : X-Ray Astronomy (eds Baity, W. A. & Peterson, L. E.) 515 (Pergamon, New York, 1979).
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Helfand, D., Vrtilek, S. Constraints on γ-ray bursters from soft X-ray transients. Nature 304, 41–43 (1983). https://doi.org/10.1038/304041a0
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DOI: https://doi.org/10.1038/304041a0
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