| Issue |
A&A
Volume 490, Number 2, November I 2008
|
|
|---|---|---|
| Page(s) | 583 - 587 | |
| Section | Extragalactic astronomy | |
| DOI | https://doi.org/10.1051/0004-6361:20078926 | |
| Published online | 25 August 2008 | |
The colour of the narrow line Sy1-blazar 0324+3410
1
SIM-IDL, Faculdade de Ciências da Universidade de Lisboa Campo Grande, C8, 1749-016 Lisboa, Portugal e-mail: santon@fc.ul.pt
2
University of Manchester, Jodrell Bank Centre for Astrophysics, Alan Turing Building, Oxford Road, Manchester, M13 9PL, UK
3
Faculdade de Ciências da Universidade de Lisboa Campo Grande, C8, 1749-016 Lisboa, Portugal
Received:
25
October
2007
Accepted:
20
August
2008
Aims. We investigate the properties of the host galaxy of the blazar J0324+3410 (B2 0321+33) by the analysis of B and R images obtained with the NOT under good photometric conditions.
Methods. The galaxy was studied using different methods: Sersic model fitting,
unsharp-masked images, 
image and profile analysis.
Results.
The images show that the host galaxy has a ring-like
morphology. The colour image reveals two bluish zones: one that
coincides with the nuclear region, interpreted as the signature of
emission related to the active nucleus, the other zone is extended and
is located in the host ring-structure. We discuss the hypothesis that
the later is thermal emission from a burst of star formation triggered
by an interacting/merging process.
Key words: galaxies: active / galaxies: peculiar / galaxies: photometry
© ESO, 2008
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