Corpus ID: 237532201

Constraining H0 Via Extragalactic Parallax

@inproceedings{Ferree2021ConstrainingHV,
  title={Constraining H0 Via Extragalactic Parallax},
  author={Nicolas C. Ferree and E. Bunn},
  year={2021}
}
We examine the prospects for measurement of the Hubble parameter H0 via observation of the secular parallax of other galaxies due to our own motion relative to the cosmic microwave background rest frame. Peculiar velocities make distance measurements to individual galaxies highly uncertain, but a survey sampling many galaxies can still yield a precise H0 measurement. We use both a Fisher information formalism and simulations to forecast errors in H0 from such surveys, marginalizing over the… Expand

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