![\begin{figure}
\par\includegraphics[width=7.4cm,clip]{Hk231_f1.eps} \end{figure}](/articles/aa/full/2006/11/aahk231/img17.gif) |
Figure 1:
HST/WFPC2 image of HH 210 for epoch 2000.70 in
[S II] (adapted from Fig. 2 of Doi et al. 2002). Each pixel is
on a side, the color stretch is linear. HH 210 shows a
typical bow shock structure containing numerous emission knots and
filaments. The two crosses mark epoch 2003.04 positions of COUP 703
and COUP 704 (Getman et al. 2005b); cross sizes indicate the total positional
uncertainties of these X-ray sources (
 ). The white
arrows indicate velocity and epoch 2003.04 position for emission knots
with proper-motion measured in [S II] by Doi et al. (2002). The
white
 -radius circles indicate the optical resolution of
HST.
|
| Open with DEXTER | |
In the text
![\begin{figure}
\par\includegraphics[width=7.8cm,clip]{Hk231_f2.eps} \end{figure}](/articles/aa/full/2006/11/aahk231/img20.gif) |
Figure 2:
COUP view of HH 210. Red, green, and blue represent photons
in the 0.5-1.7 keV, 1.7-2.8 keV, and 2.8-8.0 keV energy bands,
respectively (Lupton et al. 2004). Green crosses and countours mark the
centre of COUP sources and source extraction polygons ( 87%
encircled energy using PSF at 1.5 keV). Cross sizes indicate the
total positional uncertainties of these X-ray sources
(
 ). White contours show H +[N II] knots
observed with HST/ACS (
 -pixels on a side; epoch
2004.05, Bally et al. 2005), which were moved individually to epoch 2003.04
using proper-motions of Doi et al. (2002). COUP 703 coincides with
154-040a HH 210, the emission knot having the highest tangential
velocity (425 km s-1; see Fig. 1).
|
| Open with DEXTER | |
In the text
![\begin{figure}
\par\includegraphics[width=10.7cm,clip]{Hk231_f3a.eps}\hspace*{3mm} \includegraphics[width=4.8cm,clip]{Hk231_f3b.eps}\end{figure}](/articles/aa/full/2006/11/aahk231/img23.gif) |
Figure 3:
X-ray spectra of COUP 703 ( left) and COUP 704 ( middle),
and confidence regions of the plasma parameters ( right). Each
spectral bin contains at least 5 events. We used for the spectral fitting
a collisionally-ionized plasma model ( APEC),
assuming a plasma with solar elemental abundances (Anders & Grevesse 1989),
with X-ray absorption model ( WABS; Morrison & McCammon 1983).
Fit parameters are given in Table 1. In the right panel,
the grey region indicates for COUP 703 the confidence region at the
68% level of the plasma temperature and the absorption. The plus sign
and diamond mark the best parameter values for COUP 703 and COUP 704
(high  /low kT solution), respectively. The arrow
indicates the high temperature value for the null absorption solution
of COUP 704.
|
| Open with DEXTER | |
In the text