Determination of the Hubble constant from observations of Cepheid variables in the galaxy M96

N.R. Tanvir , T. Shanks , H.C. Ferguson , D.R.T. Robinson

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classification 🌌 astro-ph

keywords galaxyhubblecepheidconstantdistancegroupleo-iobservations

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New Hubble Space Telescope observations of Cepheid variable stars in the nearby galaxy M96 give a distance to the host galaxy group, Leo-I, of 11.6+/-0.8 Mpc. This value, used in conjunction with several reliable secondary indicators of relative distance, constrains the distances to more remote galaxy clusters, and yields a value of the Hubble constant (Ho=69+/-8 km/s/Mpc) that is independent of the velocity of the Leo-I group itself.

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Determination of the Hubble constant from observations of Cepheid variables in the galaxy M96

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