The optical behaviour of ON 231 (W Comae) during and after the great outburst of spring 1998

Details The optical behaviour of ON 231 (W Comae) during and after the great outburst of spring 1998 The optical behaviour of ON 231 (W Comae) during and after the great outburst of spring 1998

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...395...11t&link_type=abstract

Astronomy and Astrophysics, v.395, p.11-15 (2002)

Astronomy and Astrophysics

Astrophysics

8

Galaxies: Active, Galaxies: Individual: On 231, Galaxies: Photometry

Scientific paper

We present the results of the optical monitoring of the BL Lac object ON 231 from 1997 to the spring 2001, including the large outburst of spring 1998. After this event the mean source luminosity declined slowly and continued to show changes greater than one magnitude. A simple analysis of the variability time scales in the best-sampled segments of the light curve reveals that the luminosity changes were faster during the burst and slowed down in the subsequent years. Table 2 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/395/11

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