Strong Limits on the DFSZ Axion Mass with G117‐B15A
Strong Limits on the DFSZ Axion Mass with G117‐B15A
We compute rates of period change (Pdots) for the 215s mode in G117-B15A and the 213s mode in R548, first for models without axions, and then for models with axions of increasing mass. We use the asteroseismological models for G117-B15A and R548 we derived in an earlier publication . For …