Table 8: Medians and standard deviations for EH star age distributions.
Method Age [Gyr] $\sigma$ [Gyr] No. of stars

Chromospheric RPM98 1.9 4.0 112

Chromospheric D93 5.2 4.2 112

Isochrone lower limit 4.8 3.0 75

Isochrone 7.4 4.2 79

Isochrone upper limit 9.2 3.9 69

**Table 8:** Medians and standard deviations for EH star age distributions.
Method	Age [Gyr]	$\sigma$ [Gyr]	No. of stars
Chromospheric RPM98	1.9	4.0	112
Chromospheric D93	5.2	4.2	112
Isochrone lower limit	4.8	3.0	75
Isochrone	7.4	4.2	79
Isochrone upper limit	9.2	3.9	69

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data reduction
	3 Age derivation from the chromospheric activity
	4 Derivation of ages for the EH stars applying other methods
	5 Comparison with the Solar Neighborhood stellar ages
	6 Correlations of the stellar properties with age
	7 Summary
	References
	Online Material