Table 1: X-ray unabsorbed flux in the 0.3-10 keV band (in units of 10^-12 erg cm^-2 s^-1), orbital phase and spectral powerlaw index of LS 5059 in the observations performed with different satellites. The references for the RXTE and BeppoSAX observations are Ribó et al. (1999) and Reig et al. (2003), respectively; however, we checked PDS data ourselves to better constrain $\Gamma$ in the BeppoSAX observation (see text). We also analyzed ASCA SIS and GIS data, obtaining the results which are reported here. Orbital phases are computed according to the revised ephemeris of McSwain et al. (2004); the associated errors range from 2 to $5\%$ .
Observation $F_{0.3-10 ~\rm keV}$ Orbital $\Gamma$

Phase

RXTE 08/02/98 (I) $\sim$ 40 $\sim$ 0.91 $1.95\pm0.02$

RXTE 08/02/98 (II) $\sim$ 40 $\sim$ 0.10 $1.95\pm0.02$

RXTE 16/02/98 $\sim$ 40 $\sim$ 0.88 $1.95\pm0.02$

ASCA 04/10/99 $\sim$ 13 0.22-0.38 $\sim$ 1.5

SAX 08/10/00 $\sim$ 4.9 0.75-0.96 $\la$ 1.8

Chandra 10/09/02 $\sim$ 8.1 $\sim$ 0.35 $\rm 1.15^{+0.23}_{-0.21}$

XMM 08/03/03 $\sim$ 10.3 $\sim$ 0.79 $\rm 1.56^{+0.02}_{-0.05}$

XMM 27/03/03 $\sim$ 9.7 $\sim$ 0.21 $\rm 1.49^{+0.05}_{-0.04}$

**Table 1:** X-ray unabsorbed flux in the 0.3-10 keV band (in units of 10^-12 erg cm^-2 s^-1), orbital phase and spectral powerlaw index of LS 5059 in the observations performed with different satellites. The references for the *RXTE* and *BeppoSAX* observations are Ribó et al. (1999) and Reig et al. (2003), respectively; however, we checked PDS data ourselves to better constrain $\Gamma$ in the *BeppoSAX* observation (see text). We also analyzed *ASCA* SIS and GIS data, obtaining the results which are reported here. Orbital phases are computed according to the revised ephemeris of McSwain et al. (2004); the associated errors range from 2 to $5\%$ .
Observation	$F_{0.3-10 ~\rm keV}$	Orbital	$\Gamma$
		Phase
RXTE 08/02/98 (I)	$\sim$ 40	$\sim$ 0.91	$1.95\pm0.02$
RXTE 08/02/98 (II)	$\sim$ 40	$\sim$ 0.10	$1.95\pm0.02$
RXTE 16/02/98	$\sim$ 40	$\sim$ 0.88	$1.95\pm0.02$
ASCA 04/10/99	$\sim$ 13	0.22-0.38	$\sim$ 1.5
SAX 08/10/00	$\sim$ 4.9	0.75-0.96	$\la$ 1.8
Chandra 10/09/02	$\sim$ 8.1	$\sim$ 0.35	$\rm 1.15^{+0.23}_{-0.21}$
XMM 08/03/03	$\sim$ 10.3	$\sim$ 0.79	$\rm 1.56^{+0.02}_{-0.05}$
XMM 27/03/03	$\sim$ 9.7	$\sim$ 0.21	$\rm 1.49^{+0.05}_{-0.04}$

Source LaTeX | All tables | In the text

	1 Introduction
	2 The X-ray history of RX J1826.2-1450
	3 Chandra and XMM-Newton observations
	4 Discussion
	5 Conclusions
	References