![\begin{figure}
\par\includegraphics[width=8.8cm,clip]{Fd233f1.ps}
\end{figure}](/articles/aa/full/2003/29/aafd232/img16.gif) |
Figure 1:
R-band image (exposure time: 10 min) of NGC4168-ULX1
acquired in Loiano starting at 23:52 UT of 4 March 2003. North is up
and East to the left. The field size is 8' 5'. The arrow
indicates the position of the source. |
| Open with DEXTER | |
In the text
![\begin{figure}
\par\includegraphics[angle=270,width=8.8cm,clip]{Fd233f2.ps}
\end{figure}](/articles/aa/full/2003/29/aafd232/img24.gif) |
Figure 2:
Average optical spectrum of NGC4168-ULX1 taken with the Cassini
telescope at Loiano. The main spectral features are labeled. These
allowed us to determine the redshift of the source as z = 0.217. The
symbol 
indicates atmospheric telluric features. |
| Open with DEXTER | |
In the text
![\begin{figure}
\par\includegraphics[angle=270,width=8.8cm,clip]{Fd233f3.ps}
\end{figure}](/articles/aa/full/2003/29/aafd232/img42.gif) |
Figure 3: Broad-band SED of NGC4168-ULX1 composed of data from XMM-Newton (X-ray, cross), Loiano (optical, filled dots), and 2MASS (NIR, open triangles). Optical and NIR data were corrected for the Galactic absorption along the source line of sight. The presence of a peak in the SED across the optical-NIR domain isapparent. |
| Open with DEXTER | |
In the text