... Ultra Long Period Cepheids: a primary standard candle out to the Hubble flow . ... distance ladder crucially depends on classical Cepheids (with P=3-80 days), which ...
... Ultra Long Period Cepheids: a primary standard candle out to the Hubble flow . ... distance ladder crucially depends on classical Cepheids (with P=3-80 days), which ...
... Ultra Long Period Cepheids: a primary standard candle out to the Hubble flow . ... distance ladder crucially depends on classical Cepheids (with P=3-80 days), which ...
... Ultra Long Period Cepheids: a primary standard candle out to the Hubble flow . ... distance ladder crucially depends on classical Cepheids (with P=3-80 days), which ...
... Ultra Long Period Cepheids: a primary standard candle out to the Hubble flow . ... distance ladder crucially depends on classical Cepheids (with P=3-80 days), which ...
... Ultra Long Period Cepheids: a primary standard candle out to the Hubble flow . ... distance ladder crucially depends on classical Cepheids (with P=3-80 days), which ...
... Ultra Long Period Cepheids: a primary standard candle out to the Hubble flow . ... distance ladder crucially depends on classical Cepheids (with P=3-80 days), which ...