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51 papers · 2 filters
The 5 Gyr evolution of sub-M* galaxies
Karen Disseau, Mathieu Puech, François Hammer +3
We gathered two complete samples of () galaxies, which are representative of the present-day galaxies and their counterparts at 5 Gyr a…
Measuring Diffuse Interstellar Bands with cool stars. An improved line list to model the background stellar spectra
A. Monreal-Ibero, R. Lallement
DIBs are ubiquitous in stellar spectra. Traditionally, they have been studied through their extraction from hot stars, because of their smooth continuum. In an era where there are…
Constraining the dark matter content of NGC 1291 using hydrodynamic gas response simulations
F. Fragkoudi, E. Athanassoula, A. Bosma
We present a pilot study on the nearby massive barred galaxy NGC 1291, in which we use dynamical modelling to constrain the disc mass-to-light ratio (M/L), thus breaking the degene…
A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations
Ektoras Pouliasis, Paola Di Matteo, Misha Haywood
In this work, two new axisymmetric models for the Galactic mass distribution are presented. Motivated by recent results, these two models include the contribution of a stellar thin…
On the kinematic detection of accreted streams in the Gaia era: a cautionary tale
I. Jean-Baptiste, P. Di Matteo, M. Haywood +4
The CDM cosmological scenario predicts that our Galaxy should contain hundreds of stellar streams at the solar vicinity, fossil relics of the merging history of the Milky Way an…
THE NEXT GENERATION VIRGO CLUSTER SURVEY. XIV. Shell feature early-type dwarf galaxies in the Virgo cluster
Sanjaya Paudel, Rory Smith, Pierre-Alain Duc +15
The Next Generation Virgo Cluster Survey is a deep (with a detection limit = 29~mag~arcsec in the band) optical panchromatic survey targeting the Virgo cluste…