SIMBAD references

1999A&A...342L..49M - Astronomy and Astrophysics, volume 342L49-52 (1999/2-3)

The extraordinary optical outburst of ON 231 (W Com) in spring 1998.

MASSARO E., MAESANO M., MONTAGNI F., NESCI R., TOSTI G., FIORUCCI M., LUCIANI M., TAKALO L.O., SILLANPAEAE A., KATAJAINEN S., KEINAENEN P., PURSIMO T., VILLATA M., RAITERI C.M., DE FRANCESCO G., SOBRITO G., EFIMOV Yu.S. and SHAKHOVSKOY N.M.

Abstract (from CDS):

The BL Lac object ON 231 (1219+285, W Com) had an exceptional outburst phase in April-May 1998 and reached the most luminous state, observed at least since the beginning of the century. In this paper our multiband photometric light curves and polarimetric measurements of this event are presented. In the maximum phase the magnitude of ON 231 was R(Cousins)=12.2 and the optical spectral distribution was the flattest ever observed. Our data indicate that the main features of this burst can be explained by the presence of some emission components having different polarisation states and variability time scales ranging from 1 day to several months.

Abstract Copyright: ∼

Journal keyword(s): galaxies: BL Lacertae objects: general - galaxies: BL Lacertae objects: individual: ON 231

Simbad objects: 2

goto View the references in ADS

To bookmark this query, right click on this link: simbad:1999A&A...342L..49M and select 'bookmark this link' or equivalent in the popup menu