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View article: Prior-free cosmological parameter estimation of Cosmicflows-4
Prior-free cosmological parameter estimation of Cosmicflows-4 Open
As tracers of the underlying mass distributions, galaxies' peculiar velocities are valuable probes of the Universe, allowing us to measure the Hubble constant or to map the large scale structure and its dynamics. Yet, catalogs of peculiar …
View article: The large-scale velocity field from the Cosmicflows-4 data
The large-scale velocity field from the Cosmicflows-4 data Open
The reconstruction of the large-scale velocity field from the grouped Cosmicflows-4 (CF4) database is presented. The lognormal bias of the inferred distances and velocities data is corrected by the Bias Gaussianization correction scheme, a…
View article: The large scale velocity field from the Cosmicflows-4 data
The large scale velocity field from the Cosmicflows-4 data Open
The reconstruction of the large scale velocity field from the grouped Cosmicflows-4 (CF4) database is presented. The lognormal bias of the inferred distances and velocities data is corrected by the Bias Gaussianization correction (BGc) sch…
View article: Testing Bayesian reconstruction methods from peculiar velocities
Testing Bayesian reconstruction methods from peculiar velocities Open
Reconstructing the large scale density and velocity fields from surveys of galaxy distances, is a major challenge for cosmography. The data is very noisy and sparse. Estimated distances, and thereby peculiar velocities, are strongly affect…
View article: A Study about Kalman Filters Applied to Embedded Sensors
A Study about Kalman Filters Applied to Embedded Sensors Open
Over the last decade, smart sensors have grown in complexity and can now handle multiple measurement sources. This work establishes a methodology to achieve better estimates of physical values by processing raw measurements within a sensor…