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The optical variability of the Seyfert galaxies NGC 4051 and NGC 1068 (1996)

Zhang, Y. H. ; Xie, G. Z. ; Cao, S. L. ; [et al.]

Springer

Astrophysics and space science 235 (1996), S. 255-262

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ISSN: 1572-946X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The optical (BV) monitoring data for the Seyfert galaxies NGC 4051 and NGC 1068 are presented in this paper. NGC 4051 showed a variation of 0.43 mag in 21 minutes in B band from its bright nucleus, and the nucleus of NGC 1068 exhibited a variability of 0.46 mag in B band in a timescale of 1.8 hours. These results argued that the optical emission from the nuclei of the two Seyfert galaxies could be dominated by the nonthermal radiation. The data in this paper, however, are only marginal evidence on the rapid optical variability of these two Seyferts, and further monitoring is needed to confirm this type of variability.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00644445

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