Table 1: Best-fit spectral parameters for the 10 XMM- Newton observations of HD 81809 discussed here, spanning 4.5 years.
Date pn rate $L_{\rm X}$ (0.2-2.5 keV) $L_{\rm X}$ (0.73-3.5 keV) kT
  cts s-1 erg s-1 erg s-1 keV
2001-04-25 $0.1830 \pm 0.055$ $3.85 \times 10^{28}$ $1.46 \times 10^{28}$ 0.34
2001-11-01 $0.3418 \pm 0.024$ $6.42 \times 10^{28}$ $2.91 \times 10^{28}$ 0.40
2002-06-06 $0.7456 \pm 0.037$ $1.78 \times 10^{29}$ $8.88 \times 10^{29}$ 0.81
2002-11-02 $0.2455 \pm 0.024$ $5.31 \times 10^{28}$ $2.31 \times 10^{28}$ 0.39
2003-05-03 $0.1522 \pm 0.017$ $3.37 \times 10^{28}$ $1.36 \times 10^{28}$ 0.36
2003-11-22 $0.0744 \pm 0.012$ $2.05 \times 10^{28}$ $7.33 \times 10^{27}$ 0.33
2004-04-30 $0.0452 \pm 0.002$ $1.32 \times 10^{28}$ $4.59 \times 10^{27}$ 0.31
2004-11-09 $0.0816 \pm 0.003$ $1.67 \times 10^{28}$ $6.57 \times 10^{27}$ 0.33
2005-05-03 $0.0574 \pm 0.002$ $1.41 \times 10^{28}$ $4.65 \times 10^{27}$ 0.32
2005-10-30 $0.0753 \pm 0.002$ $1.81 \times 10^{28}$ $7.56 \times 10^{27}$ 0.32
2006-11-06 $0.1993 \pm 0.004$ $4.28 \times 10^{28}$ $1.71 \times 10^{28}$ 0.36
2007-05-04 $0.2220 \pm 0.005$ $5.48 \times 10^{28}$ $2.24 \times 10^{28}$ 0.38


Source LaTeX | All tables | In the text