  We present a new set of stellar yields obtained from rotating stellar models
at solar metallicity covering the massive star range (12-60 solar masses). The
stellar models were calculated with the latest version of the Geneva stellar
evolution code described in Hirschi et al (2004). Evolution and nucleosynthesis
are in general followed up to silicon burning. The yields of our non-rotating
models are consistent with other calculations and differences can be understood
in the light of the treatment of convection and the rate used for C12(a,g)O16.
This verifies the accuracy of our calculations and gives a safe basis for
studying the effects of rotation on the yields.
  The contributions from stellar winds and supernova explosions to the stellar
yields are presented separately. We then add the two contributions to compute
the total stellar yields. Below about 30 solar masses, rotation increases the
total metal yields, Z, and in particular the yields of carbon and oxygen by a
factor of 1.5-2.5. As a rule of thumb, the yields of a rotating 20 solar masses
star are similar to the yields of a non-rotating 30 solar masses star, at least
for the light elements considered in this work. For very massive stars (around
60 solar masses), rotation increases the yield of helium but does not
significantly affect the yields of heavy elements.
