All Figures

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{7877fig1.eps}\end{figure}$ Figure 1: New INTEGRAL position and uncertainty for the high energy source IGR J00234+6141, derived from our $\sim$ 3.6 Ms exposure (cross and outer 5.2 $^\prime$ circle). The inner (11 $^{\prime \prime }$ radius) circle is the ROSAT position, fully consistent with the proposed optical counterpart (arrow).
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{7877fig2.eps}\end{figure}$ Figure 2: The hard $\nu F_{\nu }$ energy spectrum of IGR J00234+6141 with the best $kT \approx 31$ keV bremsstrahlung fit superposed and corresponding residuals (bottom).
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{7877fig3.eps}\end{figure}$ Figure 3: Top: IGR J00234+6141 g-band light curves (points) overlaid with a simulated curve (line) including the best spin period (564 s) and the long term variations (see text for details). Middle: power spectrum (DFT) of the light curve, detrended from the low-frequency variations. Ordinates are power amplitudes in units of 10^-3. The inserted panel shows the spectral window Bottom: DTF of the observed light curve showing a strong peak at $\sim$ 153 day^-1. Some additional power is also present at lower frequencies (see text).
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In the text

$\begin{figure} \par\includegraphics[width=6cm,clip]{7877fig4.eps}\end{figure}$ Figure 4: The photometric g-band light curve folded with the best 563.5 s ephemeris. The modulation is very sinusoidal with a full amplitude of 0.10 mag (full line).
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{7877fig5.eps}\end{figure}$ Figure 5: Power spectrum of the H $_{\alpha }{ }$ radial velocities. The best value is found at $P_{\Omega } \sim$ 5.9 day^-1 ( $\sim$ 4.1 h). Secondary maxima are 1-day and 4-day harmonics.
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In the text

$\begin{figure} \par\includegraphics[width=8cm]{7877fig6.eps}\end{figure}$ Figure 6: Radial velocities of the H $_{\alpha }{ }$ line folded with the orbital period $P_{\Omega } =$ 4.033 h. The best sine fit is also shown (line).
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{7877fig7.eps}\end{figure}$ Figure 7: High-energy colour-colour diagram of the confirmed IPs detected by INTEGRAL. The energy bands are indicated in the labels. Sources for which only upper values exist are marked by crosses. IGR J00234+6141 (filled square) is among the hardest sources. Note that FO Aqr with M-L= 59.8, due to significant absorption, is kept out of the scale.
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{7877fig1.eps}\end{figure}$	Figure 1: New INTEGRAL position and uncertainty for the high energy source IGR J00234+6141, derived from our $\sim$ 3.6 Ms exposure (cross and outer 5.2 $^\prime$ circle). The inner (11 $^{\prime \prime }$ radius) circle is the ROSAT position, fully consistent with the proposed optical counterpart (arrow).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{7877fig2.eps}\end{figure}$	Figure 2: The hard $\nu F_{\nu }$ energy spectrum of IGR J00234+6141 with the best $kT \approx 31$ keV bremsstrahlung fit superposed and corresponding residuals (bottom).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=6cm,clip]{7877fig4.eps}\end{figure}$	Figure 4: The photometric g-band light curve folded with the best 563.5 s ephemeris. The modulation is very sinusoidal with a full amplitude of 0.10 mag (full line).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8cm,clip]{7877fig5.eps}\end{figure}$	Figure 5: Power spectrum of the H $_{\alpha }{ }$ radial velocities. The best value is found at $P_{\Omega } \sim$ 5.9 day^-1 ( $\sim$ 4.1 h). Secondary maxima are 1-day and 4-day harmonics.
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$\begin{figure} \par\includegraphics[width=8cm]{7877fig6.eps}\end{figure}$	Figure 6: Radial velocities of the H $_{\alpha }{ }$ line folded with the orbital period $P_{\Omega } =$ 4.033 h. The best sine fit is also shown (line).
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$\begin{figure} \par\includegraphics[width=8.5cm,clip]{7877fig7.eps}\end{figure}$	Figure 7: High-energy colour-colour diagram of the confirmed IPs detected by INTEGRAL. The energy bands are indicated in the labels. Sources for which only upper values exist are marked by crosses. IGR J00234+6141 (filled square) is among the hardest sources. Note that FO Aqr with M-L= 59.8, due to significant absorption, is kept out of the scale.
Open with DEXTER