Table 2: Least square fit of the gas fraction versus temperature T (in keV) to the local sample of X-ray clusters. Uncertainty in the normalization constant is 4-5%. The dispersion around the fit is also given in percentage.
Radius Gas fraction Gas fraction

( $\Omega_{\rm m} =1$ ) ( $\Omega_{\rm m} = 0.3$ )

R₂₀₀₀ $0.061T^{0.31\pm0.06}$ (17%) $0.063T^{0.32\pm0.06}$ (16%)

R₁₀₀₀ $0.075T^{0.23\pm0.06}$ (17%) $0.075T^{0.24\pm0.06}$ (17%)

Virial $0.090T^{0.14\pm0.07}$ (18.8%) $0.097T^{0.095\pm0.08}$ (22%)

**Table 2:** Least square fit of the gas fraction versus temperature T (in keV) to the local sample of X-ray clusters. Uncertainty in the normalization constant is 4-5%. The dispersion around the fit is also given in percentage.
Radius	Gas fraction	Gas fraction
	( $\Omega_{\rm m} =1$ )	( $\Omega_{\rm m} = 0.3$ )
R₂₀₀₀	$0.061T^{0.31\pm0.06}$ (17%)	$0.063T^{0.32\pm0.06}$ (16%)
R₁₀₀₀	$0.075T^{0.23\pm0.06}$ (17%)	$0.075T^{0.24\pm0.06}$ (17%)
Virial	$0.090T^{0.14\pm0.07}$ (18.8%)	$0.097T^{0.095\pm0.08}$ (22%)

Source LaTeX | All tables | In the text

	1 Introduction
	2 Scaling properties
	3 Cosmological application
	4 Conclusion
	References