101 citations · 538 across the 13 of their papers we have counts for
13 papers
Hamiltonian Monte Carlo reconstruction from peculiar velocities
Aurélien Valade, Yehuda Hoffman, Noam I Libeskind +1
The problem of the reconstruction of the large scale density and velocity fields from peculiar velocities surveys is addressed here within a Bayesian framework by means of Hamilton…
Accuracy of environmental tracers and consequence for determining the Type Ia Supernovae magnitude step
M. Briday, M. Rigault, R. Graziani +12
Type Ia Supernovae (SNe Ia) are standardizable candles that allow us to measure the recent expansion rate of the Universe. Due to uncertainties in progenitor physics, potential ast…
Cosmicflows-3: The South Pole Wall
Daniel Pomarede, R. Brent Tully, Romain Graziani +3
Velocity and density field reconstructions of the volume of the universe within 0.05c derived from the Cosmicflows-3 catalog of galaxy distances has revealed the presence of a fila…
Redshift evolution of the underlying type Ia supernova stretch distribution
N. Nicolas, M. Rigault, Y. Copin +7
The detailed nature of type Ia supernovae (SNe Ia) remains uncertain, and as survey statistics increase, the question of astrophysical systematic uncertainties arises, notably that…
Peculiar velocity cosmology with type Ia supernovae
R. Graziani, M. Rigault, N. Regnault +20
Type Ia Supernovae have yet again the opportunity to revolutionize the field of cosmology as the new generation of surveys are acquiring thousands of nearby SNeIa opening a new era…
Secular Extragalactic Parallax: Measurement Methods and Predictions for Gaia
Jennie Paine, Jeremy Darling, Romain Graziani +1
Secular extragalactic parallax caused by the solar system's velocity relative to the cosmic microwave background rest frame may be observable as a dipole proper motion field with a…
Cosmicflows-3: Two DistanceVelocity Calculators
Ehsan Kourkchi, Helene M. Courtois, Romain Graziani +4
Tools are provided at the Extragalactic Distance Database website that provide relationships between the distances and velocities of galaxies based on smoothed versions of the velo…
A kinematic confirmation of the hidden Vela supercluster
Helene M. Courtois, Renee. C. Kraan-Korteweg, Alexandra Dupuy +2
The universe region obscured by the Milky Way is very large and only future blind large HI redshift, and targeted peculiar surveys on the outer borders will determine how much mass…
Partitioning the universe into gravitational basins using the cosmic velocity field
A. Dupuy, H. M. Courtois, F. Dupont +8
This letter presents a new approach using the cosmic peculiar velocity field to characterize the morphology and size of large scale structures in the local Universe. The algorithm…
Cosmicflows-3: Cosmography of the Local Void
R Brent Tully, Daniel Pomarede, Romain Graziani +3
Cosmicflows-3 distances and inferred peculiar velocities of galaxies have permitted the reconstruction of the structure of over and under densities within the volume extending to 0…
Testing Gravity Using Type Ia Supernovae Discovered by Next-Generation Wide-Field Imaging Surveys
A. G. Kim, G. Aldering, P. Antilogus +29
In the upcoming decade cadenced wide-field imaging surveys will increase the number of identified Type~Ia supernovae (SNe~Ia) from the hundreds to the hundreds of thousands…
The peculiar velocity field up to by forward-modeling Cosmicflows-3 data
R. Graziani, H. M. Courtois, G. Lavaux +4
A hierarchical Bayesian model is applied to the Cosmicflows-3 catalog of galaxy distances in order to derive the peculiar velocity field and distribution of matter within $z \sim 0…
Cosmicflows-3: Cold Spot Repeller?
Helene M. Courtois, R. Brent Tully, Yehuda Hoffman +3
The three-dimensional gravitational velocity field within z~0.1 has been modeled with the Wiener filter methodology applied to the Cosmicflows-3 compilation of galaxy distances. Th…