2002A&A...395...11T


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.19CET17:15:43

2002A&A...395...11T - Astronomy and Astrophysics, volume 395, 11-15 (2002/11-3)

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

TOSTI G., MASSARO E., NESCI R., CIPRINI S., NUCCIARELLI G., MAESANO M., MONTAGNI F., RAITERI C.M., VILLATA M., LANTERI L. and OSTORERO L.

Abstract (from CDS):

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.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: individual: ON 231 - galaxies: photometry

VizieR on-line data: <Available at CDS (J/A+A/395/11): table2.dat>

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 1955 1
2 7C 1219+2830 BLL 12 21 31.6902446545 +28 13 58.500383827   16.81 16.11 14.24   ~ 768 1

    Equat.    Gal    SGal    Ecl

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2020.01.19-17:15:43

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