Effects of helium enrichment in globular clusters - I. Theoretical plane with PGPUC stellar evolution code

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Table 4

Difference in the bolometric magnitude m_bol (four last columns) between ZAHB loci with different progenitor masses (ΔM_i), for 3 metallicities and 3 helium abundances (first column) at the labeled log T_eff.


Z = 1.60 × 10^-4			log T_eff
Y	ΔM_i	Δ Age	4.45	4.20	4.00	3.83

0.245	0.9–0.8	–4.2	0.040	0.023	0.010	0.010
0.245	0.9–0.7	–11.9	0.075	0.045	0.015	–
0.295	0.9–0.8	–3.0	0.055	0.033	0.025	0.028
0.295	0.9–0.7	–8.7	0.100	0.055	0.038	–
0.345	0.9–0.8	–2.2	0.080	0.053	0.048	0.053
0.345	0.9–0.7	–6.2	0.143	0.083	0.078	–


Z = 1.60 × 10^-3			log T_eff
Y	ΔM_i	Δ Age	4.45	4.20	4.00	3.83

0.245	0.9–0.8	–5.0	0.030	0.015	0.003	0.003
0.245	0.9–0.7	–14.1	0.058	0.030	0.000	-0.003
0.295	0.9–0.8	–3.6	0.033	0.018	0.010	0.010
0.295	0.9–0.7	–10.1	0.068	0.028	0.015	0.013
0.345	0.9–0.8	–2.6	0.040	0.023	0.020	0.020
0.345	0.9–0.7	–7.2	0.078	0.038	0.033	0.030


Z = 1.57 × 10^-2			log T_eff
Y	ΔM_i	Δ Age	4.45	4.20	4.00	3.83

0.245	0.9–0.8	–10.7	0.018	0.013	–0.003	0.010
0.245	0.9–0.7	–30.1	0.040	0.030	–0.005	0.020
0.295	0.9–0.8	–7.6	0.018	0.010	–0.003	–0.003
0.295	0.9–0.7	–21.4	0.043	0.025	–0.005	–0.010
0.345	0.9–0.8	–5.3	0.020	0.008	0.005	0.005
0.345	0.9–0.7	–15.0	0.043	0.010	0.003	0.005

Notes. In the third column are listed the difference in the ages (in Gyr) at the ZAHB of the progenitor stars used to calculate the difference in m_bol.

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