111 citations · 592 across the 23 of their papers we have counts for
23 papers
On the pressure equilibrium and timescales in the scale free convection theory
Stefano Pasetto, Cesare Chiosi, Mark Cropper +2
Convection is one of the fundamental energy transport processes in physics and astrophysics, and its description is central to allstellar models. In the context of stellar astrophy…
The faint end of the Centaurus A satellite luminosity function
D. Crnojević, D. J. Sand, P. N. Bennet +9
The Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) is constructing a wide-field map of the resolved stellar populations in the extended halos of these two nearby, prom…
Theory of multiple-stellar population synthesis in a non-Hamiltonian setting
S. Pasetto, D. Crnojević, G. Busso +2
We aim to investigate the connections existing between the density profiles of the stellar populations used to define a gravitationally bound stellar system and their star formatio…
GalMod: a Galactic synthesis population model
S. Pasetto, E. K. Grebel, C. Chiosi +7
We present a new Galaxy population synthesis Model (GalMod). GalMod is a star-count model featuring an asymmetric bar/bulge as well as spiral arms and related extinction. The model…
Ray-tracing 3D dust radiative transfer with DART-Ray: code upgrade and public release
Giovanni Natale, Cristina C. Popescu, Richard. J. Tuffs +6
We present an extensively updated version of the purely ray-tracing 3D dust radiation transfer code DART-Ray. The new version includes five major upgrades : 1) a series of optimiza…
Spiral arm kinematics for Milky Way stellar populations
S. Pasetto, G. Natale, D. Kawata +3
We present a new theoretical population synthesis model (the Galaxy Model) to examine and deal with large amounts of data from surveys of the Milky Way and to decipher the present…
Theory of stellar convection II: first stellar models
S. Pasetto, C. Chiosi, E. Chiosi +2
We present here the first stellar models on the Hertzsprung-Russell diagram (HRD), in which convection is treated according to the novel scale-free convection theory (SFC theory) b…
Stellar Motion around Spiral Arms: Gaia Mock Data
D. Kawata, J. A. S. Hunt, R. J. J. Grand +3
We compare the stellar motion around a spiral arm created in two different scenarios, transient/co-rotating spiral arms and density-wave-like spiral arms. We generate Gaia mock dat…
The stellar kinematics of co-rotating spiral arms in Gaia mock observations
Jason A. S. Hunt, Daisuke Kawata, Robert J. J. Grand +3
We have observed an N-body/Smoothed Particle Hydrodynamics simulation of a Milky Way like barred spiral galaxy. We present a simple method that samples N-body model particles into…
A PAndAS view of M31 dwarf elliptical satellites: NGC147 and NGC185
D. Crnojević, A. M. N. Ferguson, M. J. Irwin +9
We exploit data from the Pan-Andromeda Archaeological Survey (PAndAS) to study the extended structures of M31's dwarf elliptical companions, NGC147 and NGC185. Our wide-field, homo…
Environmental effects on star formation in dwarf galaxies and star clusters
S. Pasetto, M. Cropper, Y. Fujita +2
We develop a simple analytical criterion to investigate the role of the environment on the onset of star formation. We will consider the main external agents that influence the sta…
Gas and Stellar Motions and Observational Signatures of Co-Rotating Spiral Arms
Daisuke Kawata, Jason A. S. Hunt, Robert J. J. Grand +2
We have observed a snapshot of our N-body/Smoothed Particle Hydrodynamics simulation of a Milky Way-sized barred spiral galaxy in a similar way to how we can observe the Milky Way.…
Theory of stellar convection: Removing the Mixing-Length Parameter
S. Pasetto, C. Chiosi, M. Cropper +1
Stellar convection is customarily described by Mixing-Length Theory, which makes use of the mixing-length scale to express the convective flux, velocity, and temperature gradients…
Thin disk kinematics from RAVE and the solar motion
S. Pasetto, E. K. Grebel, T. Zwitter +14
Aims. We study the Milky Way thin disk with the Radial Velocity Experiment (RAVE) survey. We consider the thin and thick disks as different Galactic components and present a techni…
Thick disk kinematics from RAVE and the solar motion
S. Pasetto, E. K. Grebel, T. Zwitter +14
Radial velocity surveys such as the Radial Velocity Experiment (RAVE) provide us with measurements of hundreds of thousands of nearby stars most of which belong to the Galactic thi…
Theory of Stellar Population Synthesis with an application to N-Body simulations
S. Pasetto, C. Chiosi, D. Kawata
Aims. We present here a new theoretical approach to population synthesis. The aim is to predict colour magnitude diagrams (CMDs) for huge numbers of stars. With this method we gene…
Dissipative phenomena in extended-bodies interactions I: Methods Dwarf galaxies of the Local Group and their synthetic CMDs
S. Pasetto, G. Bertelli, E. K. Grebel +2
Dissipative phenomena occurring during the orbital evolution of a dwarf satellite galaxy around a host galaxy may leave signatures in the star formation activity and signatures in…
First Results for the Solar Neighborhood of the Asiago Red Clump Survey
M. Valentini, U. Munari, T. Saguner +4
The Asiago Red Clump Spectroscopic Survey (ARCS) is an ongoing survey that provides atmospheric parameters, distances and space velocities of a well selected sample of Red Clump st…
Orbital evolution of the Carina dwarf galaxy and self-consistent star formation history determination
S. Pasetto, E. K. Grebel, P. Berczik +2
We present a new study of the evolution of the Carina dwarf galaxy that includes a simultaneous derivation of its orbit and star formation history. The structure of the galaxy is c…
On the isolated dwarf galaxies: from cuspy to flat dark matter density profiles and metallicity gradients
S. Pasetto, E. K. Grebel, P. Berczik +2
The chemodynamical evolution of spherical multi-component self-gravitating models for isolated dwarf galaxies is studied. We compare their evolution with and without feedback effec…
Tidal Effects on the Spatial Structure of the Local Group
Stefano Pasetto, Cesare Chiosi
The spatial distribution of galaxies in the Local Group (LG) is the footprint of its formation mechanism and the gravitational interactions among its members and the external massi…
Planar distribution of the galaxies in the Local Group: a statistical and dynamical analysis
Stefano Pasetto, Cesare Chiosi
Adopting known data on positions and distances, we make use of the analytical geometry and look for the plane that minimizes the distances of all galaxies to it. A planar distribut…
Kinematics of the disk population in the GAIA era
G. Bertelli, A. Vallenari, S. Pasetto +1
GAIA data will create a precise 3-dimensional map of the Galaxy, providing positional information, radial velocities, luminosity, temperature and chemical composition of a represen…