Optical variability detected in the M33 nucleus

Details Optical variability detected in the M33 nucleus Optical variability detected in the M33 nucleus

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12..187l&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, Mar. 1986, p. 187-193) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, Mar.-Apr

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Galactic Nuclei, Local Group (Astronomy), Periodic Variations, Spiral Galaxies, Visible Spectrum, Electrophotometry, Light Curve, Seyfert Galaxies, Ubv Spectra

Scientific paper

Results of three-year photoelectric UBV observations of the nucleus of the Local Group galaxy M33 are presented. Optical variability with amplitude up to ΔU ≡ 1m is found. Characteristics of the optical variability of the nucleus of M33 resemble those of the well-known Seyfert galaxy NGC 4051. According to the published data and these measurements the total amplitude of the variability of the nucleus of M33 during ≡20 years may by about ΔV ≡ 1m.

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