A new sample of solar analogs and twin candidates have been constructed and studied , with particular attention to their light curves from NASA ’ s Kepler mission .
This letter aims to assess the evolutionary status , derive their rotation and ages and identify those solar analogs or solar twin candidates .
We separate out the subgiants that compose a large fraction of the asteroseismic sample , and which show an increase in the average rotation period as the stars ascend the subgiant branch .
The rotation periods of the dwarfs , ranging from 6 to 30 days , and averaged 19d , allow us to assess their individual evolutionary states on the main sequence , and to derive their ages using gyrochronology .
These ages are found to be in agreement with a correlation coefficient of r = 0.79 with the independent asteroseismic ages , where available .
As a result of this investigation , we are able to identify 34 stars as solar analogs and 22 of them as solar twin candidates .