The Pisa Stellar Evolution Data Base for low-mass stars

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Table 3

Comparison among recent databases.

Models	Present models (Pisa)	BaSTI (Teramo)	STEV(Padova)	Dartmouth

Mass range [M_⊙]	0.30 ÷ 1.10	0.50 ÷ 10.0	0.15 ÷ 20.0	0.10 ÷ 4.00
Metallicity (Z)	1 × 10^-4 ÷ 1 × 10^-2	1 × 10^-4 ÷ 4 × 10^-2	1 × 10^-4 ÷ 7 × 10^-2	[Fe/H] = − 2.5 ÷ 0.5
Helium abundance (Y)	0.25; 0.27; 0.33; 0.38; 0.42;	0.245 ≤ Y ≤ 0.303	0.23; 0.26; 0.30; 0.34;	0.33; 0.40;
	Y = 0.2485 + 2Z	Y = 0.245 + 1.4Z	0.40; 0.46 ^*	Y = 0.245 + 1.6Z
Solar mixture	AGSS09^a	GN93^b	GN93^b	GS98^c
[α/Fe]	0.0; +0.3	+0.4	0.0	−0.2 ÷ + 0.8 ([Fe/H] ≤ 0)
				−0.2 ÷ + 0.2 ([Fe/H] > 0)^**
Evolutionary phases	PMS; H+He	PMS; H+He	H+He	PMS; H+He

α_ml	1.70; 1.80; 1.90	1.913	1.68	1.938
Diffusion	Thoul et al. (1994)	NO	NO	Thoul et al. (1994)
M_min for overshoot	NO overshooting	1.1 M_⊙	1.1 M_⊙	1.1 M_⊙

EOS	OPAL2006+Straniero (1988)	FreeEOS^A	Bertelli et al. (2008)+	Chaboyer & Kim (1995)+
			Mihalas et al. (1990)	FreeEOS^A
Radiative opacity	OPAL2006+F05^d	OPAL96+F05^d	OPAL96+AF94^e	OPAL96+F05^d
Conductive opacity	Cassisi et al. (2007)	Potekhin (1999)	Itoh et al. (1983)	Hubbard & Lampe (1969)
		Potekhin et al. (1999)
Reactions rates	NACRE	NACRE	Caughlan & Fowler (1988)	Adelberger et al. (1998)
	Imbriani et al. (2005)^f			Imbriani et al. (2004)^f
	Hammer et al. (2005)^g	Kunz et al. (2002)^g		Kunz et al. (2002)^g
	Cyburt & Davids (2008)^h		Landre et al. (1990)ⁱ
Neutrinos	Haft et al. (1994)	Haft et al. (1994)	Haft et al. (1994)	Haft et al. (1994)
	Itoh et al. (1996)

Boundary conditions	Brott & Hauschildt (2005)	Krishna Swamy (1966)	Castelli & Kurucz (2003)	Hauschildt et al. (1999)
	Castelli & Kurucz (2003)			Castelli & Kurucz (2003)

Notes.

^(*)

Not all values of Z are available for all Y values.

^(**)

Not all values of [Fe/H] are available for the reported [α/Fe] values.

^(A)

http://freeeos.sourceforge.net.

^(a)

AGSS09 = Asplund et al. (2009).

^(b)

GN93 = Grevesse & Noels (1993).

^(c)

GS98 = Grevesse & Sauval (1998).

^(d)

F05 = Ferguson et al. (2005).

^(e)

AF94 = Alexander & Ferguson (1994).

^(f)

For the reaction rate ¹⁴N(p,γ)¹⁵O.

^(g)

For the reaction rate ¹²C(α,γ)¹⁶O.

^(h)

For the reaction rate ³He(α,γ)⁷Be.

⁽ⁱ⁾

For the reaction rate ¹⁷O(p,γ)¹⁸F.

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