383 citations · 9k across the 157 of their papers we have counts for
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Constraining the mass of the Local Group
Edoardo Carlesi, Yehuda Hoffman, Jenny G. Sorce +1
The mass of the Local Group (LG) is a crucial parameter for galaxy formation theories. However, its observational determination is challenging - its mass budget is dominated by dar…
The abundance and environment of dark matter haloes
Ofer Metuki, Noam I Libeskind, Yehuda Hoffman
An open question in cosmology and the theory of structure formation is to what extent does environment affect the properties of galaxies and haloes. The present paper aims at shedd…
Estimating the Mass of the Local Group using Machine Learning Applied to Numerical Simulations
Michael McLeod, Noam Libeskind, Ofer Lahav +1
We revisit the estimation of the combined mass of the Milky Way and Andromeda (M31), which dominate the mass of the Local Group. We make use of an ensemble of 30,190 halo pairs fro…
How did the Virgo cluster form?
Jenny G. Sorce, Stefan Gottloeber, Yehuda Hoffman +1
While the Virgo cluster is the nearest galaxy cluster and therefore the best observed one, little is known about its formation history. In this paper, a set of cosmological simulat…
Goodness-of-fit analysis of the Cosmicflows-2 database of velocities
Yehuda Hoffman, Adi Nusser, Helene M. Courtois +1
The goodness-of-fit (GoF) of the Cosmicflows-2 (CF2) database of peculiar velocities with the LCDM standard model of cosmology is presented. Standard application of the Chi^2 stati…
The tangential velocity of M31: CLUES from constrained simulations
Edoardo Carlesi, Yehuda Hoffman, Jenny G. Sorce +4
Determining the precise value of the tangential component of the velocity of M31 is a non trivial astrophysical issue, that relies on complicated modeling. This has recently lead t…