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On the variability of emission spectrum of the Sy2 galaxy Mark 6

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Astrophysics Aims and scope

According to Ambartsumyan, one of the forms of galactic activity is the outflow of gaseous material in the form of jets or clouds from the region of the nucleus at velocities up to hundreds or thousands of km/s, which sometimes leads to the breakup of the nucleus and the ejection of large bursts of material from it. Quite a lot is known about the results of these ejections, especially for quasars and active galaxies. They have been detected and studied in detail with regard to changes in their outer appearance. However, the exact time of the ejections is not known, although statistically they occur frequently and irregularly. The detection of changes in the spectra of galaxies is of special interest, but these are much harder to detect over short times. Nevertheless, the probability of detecting the time of an ejection within a short time is nonzero. Additional new emission components of the hydrogen Hα, Hβ, and Hγ lines over a year in the spectrum of the Sy2 galaxy Mark 6 were first discovered by Khachikian and Weedman in 1969. This paper describes the origin and subsequent interesting fate of this new hydrogen formation (cloud).

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Authors and Affiliations

  1. V. A. Ambartsumyan Byurakan Astrophysical Observatory, Byurakan, Armenia

    E. Ye. Khachikian & N. S. Asatrian

  2. Special Astrophysical Observatory, Karachai-Cherkessian, Russia

    A. N. Burenkov

Authors
  1. E. Ye. Khachikian
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  2. N. S. Asatrian
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  3. A. N. Burenkov
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Correspondence to E. Ye. Khachikian.

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Translated from Astrofizika, Vol. 54, No. 1, pp. 35−45 (February 2011).

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Khachikian, E.Y., Asatrian, N.S. & Burenkov, A.N. On the variability of emission spectrum of the Sy2 galaxy Mark 6. Astrophysics 54, 26–35 (2011). https://doi.org/10.1007/s10511-011-9155-z

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  • DOI: https://doi.org/10.1007/s10511-011-9155-z

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