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On the periodical very high energy gamma-ray emission from Cyg X-3

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Abstract

The period of very high energy (E>2×1012 eV) gamma-ray emission of Cyg X-3 by using the data of observations of the source made during 6 years, 1972–1977, was specified. The value of the period is equal to 0.199 683±1×10−6 days. Phase histogram reveals two peaks, one lagging the other by 0.6 of the period. The averaged 6 year data amounts to 1.8×10−10 quanta cm−2 s−1 (peak intensity). It corresponds to luminosity of about 1.2×1037 erg s−1 if one assumes that an emission is isotropical and the distance is equal to 10 kpc.

Абстракт

По данным наблюдения гамма-излучения E>2×1012 эв источника Cyg X-3 за. шесть лет 1972–1977 гг. получено численое значение периода гамма-излучения T=0,199 683 суток±10−6 суток. Световая кривая периолической составляющей имеет импульсный харахтер с двумя пиками, разнесенными на 0,6 периода. Средняя за все годы величина потока равна 1,8×10−10 кв см−2 сек−1 (пиковое знааение), что в чредположении изотропности излуения соответствует 1,2×1037 эгр/сек при расстоянии до ицточника 10 кпс.

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Authors and Affiliations

  1. Crimean Astrophysical Observatory, Nauchny, Crimea, USSR

    Yu. I. Neshpor, A. A. Stepanian, V. P. Fomin, S. A. Gerasimov, B. M. Vladimirsky & Yu. L. Ziskin

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  1. Yu. I. Neshpor
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  2. A. A. Stepanian
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  3. V. P. Fomin
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  4. S. A. Gerasimov
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  5. B. M. Vladimirsky
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  6. Yu. L. Ziskin
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Neshpor, Y.I., Stepanian, A.A., Fomin, V.P. et al. On the periodical very high energy gamma-ray emission from Cyg X-3. Astrophys Space Sci 61, 349–355 (1979). https://doi.org/10.1007/BF00640536

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  • DOI: https://doi.org/10.1007/BF00640536

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