The Pisa pre-main sequence tracks and isochrones - A database covering a wide range of Z, Y, mass, and age values

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Volume 533 (September 2011)

A&A, 533 (2011) A109

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Table 3

Summary of the models and isochrones available in the database.


	X_D = 4.0 × 10^-5							X_D = 2.0 × 10^-5

	α = 1.68			α = 1.2, 1.9				α = 1.2, 1.68, 1.9

Y_p =	0.230	0.2485		0.230	0.2485			0.230	0.2485
ΔY/ΔZ =	2	2	5	2	2	5		2	2	5

Z:	Y:			Y:				Y:


2.00 × 10^-4	0.230	0.249	0.250	0.230	0.249	0.250
1.00 × 10^-3	0.232	0.251	0.254	0.232	0.251	0.254
2.00 × 10^-3	0.234	0.253	0.259	0.234	0.253	0.259
3.00 × 10^-3	0.236	0.254	0.263	0.236	0.254	0.263
4.00 × 10^-3	0.238	0.256	0.269	0.238	0.256	0.269
5.00 × 10^-3	0.240	0.258	0.273	0.240	0.258	0.273
6.00 × 10^-3	0.242	0.260	0.279	0.242	0.260	0.279
7.00 × 10^-3	0.244	0.262	0.283	0.244	0.262	0.283
8.00 × 10^-3	0.246	0.265	0.289	0.246	0.265	0.289		0.246	0.265	0.289
9.00 × 10^-3	0.248	0.267	0.294	0.248	0.267	0.294		0.248	0.267	0.294
1.00 × 10^-2	0.250	0.268	0.299	0.250	0.268	0.299		0.250	0.268	0.299
1.25 × 10^-2	0.255	0.274	0.311	0.255	0.274	0.311		0.255	0.274	0.311
1.50 × 10^-2	0.260	0.278	0.323	0.260	0.278	0.323		0.260	0.278	0.323
1.75 × 10^-2	0.265	0.284	0.336	0.265	0.284	0.336		0.265	0.284	0.336
2.00 × 10^-2	0.270	0.288	0.349	0.270	0.288	0.349		0.270	0.288	0.349
2.25 × 10^-2	0.275	0.294	0.361	0.275	0.294	0.361		0.275	0.294	0.361
2.50 × 10^-2	0.280	0.299	0.374	0.280	0.299	0.374		0.280	0.299	0.374
2.75 × 10^-2	0.285	0.304	0.386	0.285	0.304	0.386		0.285	0.304	0.386
3.00 × 10^-2	0.290	0.308	0.398	0.290	0.308	0.398		0.290	0.308	0.398



Solar chemical composition			Y = 0.2533		Z = 0.01377		α = 1.68		X_D = 2.0 × 10^-5

Notes. The table lists the initial deuterium abundance X_D, the mixing length parameter (α), the primordial abundance of helium (Y_p), the helium to metal enrichment ratio (ΔY/ΔZ), the initial helium (Y), and metal (Z) abundance.

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