Investigating AGN feedback in Hα-luminous galaxy clusters: First Chandra X-ray analysis of Abell 2009

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Table 7.

Best-fit results of the spectral analysis of the cooling region in Abell 2009.

R_in − R_out [kpc]	kT [keV]	Z [Z_⊙]	Norm [10⁻²]	Net counts	χ²/d.o.f.
3.9–87.5	5.56 $_{- 0.24}^{+ 0.26}$ $^{+0.26}_{-0.24}$	0.77 $_{- 0.13}^{+ 0.14}$ $^{+0.14}_{-0.13}$	0.46 $_{- 0.01}^{+ 0.01}$ $^{+0.01}_{-0.01}$	7124 (97.7%)	145.65/164 (0.89)
87.5–447.8	7.01 $_{- 0.26}^{+ 0.29}$ $^{+0.29}_{-0.26}$	0.50 $_{- 0.09}^{+ 0.09}$ $^{+0.09}_{-0.09}$	1.06 $_{- 0.02}^{+ 0.02}$ $^{+0.02}_{-0.02}$	13588 (85.7%)	222.55/251 (0.89)

Notes. Best-fit results of the elliptical deprojected radial spectrum of Abell 2009 using a projct*tbabs*apec model and derived to study the inner cooling region. In the first column the internal and outer radii of each elliptical annulus are reported (these radii correspond to the semi-major axes of the annuli). The second, third, and forth columns report the temperature, metallicity, and normalization values. The last two columns report the net photon counts and their percentage with respect to the total counts, and the value for the reduced χ² of each fit.

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