109 citations · 405 across the 10 of their papers we have counts for
7 papers · 1 filter
The angular momentum of disc galaxies at z=1
A. Marasco, F. Fraternali, L. Posti +3
We investigate the relation between stellar mass and specific stellar angular momentum, or `Fall relation', for a sample of 17 isolated, regularly rotating disc galaxies at z=1. Al…
Peak star formation efficiency and no missing baryons in massive spirals
Lorenzo Posti, Filippo Fraternali, Antonino Marasco
It is commonly believed that galaxies use, throughout the Hubble time, a very small fraction of the baryons associated to their dark matter halos to form stars. This so-called low…
Mass and shape of the Milky Way's dark matter halo with globular clusters from Gaia and Hubble
Lorenzo Posti, Amina Helmi
We estimate the mass of the inner ( kpc) Milky Way and the axis ratio of its dark matter halo using globular clusters as tracers. At the same time, we constrain the phase-spac…
Scratching the surface with TGAS and RAVE: disk moving groups in the Solar neighborhood
Helmer H. Koppelman, Titania Virginiflosia, Lorenzo Posti +2
There is long tradition extending more than a century on the identification of moving groups in the Solar neighborhood. However, with the advent of large kinematic surveys, and esp…
Leaves on trees: identifying halo stars with extreme gradient boosted trees
Jovan Veljanoski, Amina Helmi, Maarten Breddels +1
Extended stellar haloes are a natural by-product of the hierarchical formation of massive galaxies. If merging is a non-negligible factor in the growth of our Galaxy, evidence of s…
The angular momentum-mass relation: a fundamental law from dwarf irregulars to massive spirals
Lorenzo Posti, Filippo Fraternali, Enrico di Teodoro +1
In a CDM Universe, the specific stellar angular momentum () and stellar mass () of a galaxy are correlated as a consequence of the scaling existing for dark matt…