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31 papers · 1 filter
Secular Dynamics of S-type Planetary Orbits in Binary Star Systems: Applicability Domains of First- and Second-Order Theories
Eduardo Andrade-Ines, Cristian Beaugé, Tatiana Michtchenko +1
We analyse the secular dynamics of planets on S-type coplanar orbits in tight binary systems, based on first- and second-order analytical models, and compare their predictions with…
The VMC Survey. XVIII. Radial dependence of the low-mass, 0.55--0.82 stellar mass function in the Galactic globular cluster 47 Tucanae
Chaoli Zhang, Chengyuan Li, Richard de Grijs +12
We use near-infrared observations obtained as part of the {\sl Visible and Infrared Survey Telescope for Astronomy} (VISTA) Survey of the Magellanic Clouds (VMC), as well as two co…
Horseshoe drag in three-dimensional globally isothermal disks
Frédéric Masset, Pablo Benítez-Llambay
We study the horseshoe dynamics of a low-mass planet in a three-dimensional, globally isothermal, inviscid disk. We find, as reported in previous work, that the boundaries of the h…
Mergers and the outside-in formation of dwarf spheroidals
Alejandro Benítez-Llambay, Julio F. Navarro, Mario G. Abadi +4
We use a cosmological simulation of the formation of the Local Group to explore the origin of age and metallicity gradients in dwarf spheroidal galaxies. We find that a number of s…
Fossil groups in the Millennium simulation. From the brightest to the faintest galaxies during the past 8 Gyr
Maria Jose Kanagusuku, Eugenia Diaz-Gimenez, Ariel Zandivarez
We investigate the evolution of bright and faint galaxies in fossil and non-fossil groups. We used mock galaxies constructed based on the Millennium run simulation II. We identifie…
A catalogue of Large Magellanic Cloud star clusters observed in the Washington photometric system
Tali Palma, Luciana V. Gramajo, Juan J. Clariá +3
The main goal of this study is to compile a catalogue including the fundamental parameters of a complete sample of 277 star clusters (SCs) of the Large Magellanic Cloud (LMC) obser…