YZVAR

Scaled solar tracks and isochrones in a large region of the Z-Y plane. I. From the ZAMS to the TP-AGB end for 0.15-2.5 Msun stars, Bertelli, G., Girardi, L., Marigo, P., Nasi, E., 2008, Astronomy and Astrophysics, 484, 815.

Scaled solar tracks and isochrones in a large region of the Z-Y plane. II. From 2.5 to 20 Mȯ stars, Bertelli, G., Nasi, E., Girardi, L., & Marigo, P. 2009, Astronomy and Astrophysics, 508, 355.

New isochrones can be ordered via the YZVAR interactive web service.

Evolutionary tracks (in tar gzipped files):
New! The tar files were replaced in Mar 1, 2010, so as to include the more massive stars.

Z	Y
	0.23	0.26	0.30	0.34	0.40	0.46
0.0001	tr_z0001y23.tgz	tr_z0001y26.tgz	tr_z0001y30.tgz		tr_z0001y40.tgz
0.0004	tr_z0004y23.tgz	tr_z0004y26.tgz	tr_z0004y30.tgz		tr_z0004y40.tgz
0.001	tr_z001y23.tgz	tr_z001y26.tgz	tr_z001y30.tgz		tr_z001y40.tgz
0.002	tr_z002y23.tgz	tr_z002y26.tgz	tr_z002y30.tgz		tr_z002y40.tgz
0.004	tr_z004y23.tgz	tr_z004y26.tgz	tr_z004y30.tgz		tr_z004y40.tgz
0.008	tr_z008y23.tgz	tr_z008y26.tgz	tr_z008y30.tgz	tr_z008y34.tgz	tr_z008y40.tgz
0.017	tr_z017y23.tgz	tr_z017y26.tgz	tr_z017y30.tgz	tr_z017y34.tgz	tr_z017y40.tgz
0.040		tr_z040y26.tgz	tr_z040y30.tgz	tr_z040y34.tgz	tr_z040y40.tgz	tr_z040y46.tgz
0.070			tr_z070y30.tgz	tr_z070y34.tgz	tr_z070y40.tgz	tr_z070y46.tgz

Isochrones in the Johnson-Cousins UBVRIJHK system:

Z	Y
	0.23	0.26	0.30	0.34	0.40	0.46
0.0001	z0001y23	z0001y26	z0001y30		z0001y40
0.0004	z0004y23	z0004y26	z0004y30		z0004y40
0.001	z001y23	z001y26	z001y30		z001y40
0.002	z002y23	z002y26	z002y30		z002y40
0.004	z004y23	z004y26	z004y30		z004y40
0.008	z008y23	z008y26	z008y30	z008y34	z008y40
0.017	z017y23	z017y26	z017y30	z017y34	z017y40
0.040		z040y26	z040y30	z040y34	z040y40	z040y46
0.070			z070y30	z070y34	z070y40	z070y46