Results 91 to 100 of about 12,289 (284)
The Astrophysical JournalReconstructing the mass assembly history of the Milky Way relies on obtaining detailed measurements of the properties of many stars in the galaxy, especially in the stellar halo.
Danny Horta +4 more
doaj +1 more source
Identifying substructure associations in the Milky Way halo using chemo-kinematic tagging
Astronomy & AstrophysicsContext. The Milky Way halo has been built-up over cosmic time through the accretion and dissolution of star clusters and dwarf galaxies as well as through their complex interactions with the Galactic disc.
Youakim K., Lind K.
doaj +1 more source
, 1999 Our Galaxy is a barred spiral. Recent work based on the COBE NIR data implies a small bulge-bar and a disk with a short scale-length. The corotation radius of the bar is in the range 3-4.5 kpc. The stellar density distribution beyond the end of the bar appears to be perturbed strongly by the Galaxy's spiral arms.
openaire +2 more sources
Galaxy Dynamics and the PNe Population [PDF]
, 2006 12 pages, 5 figures, ESO Workshop Planetary Nebulae beyond the Milky Way ESO, Garching, May 19-21, 2004 Planetary Nebulae beyond the Milky Way ESO, Garching, May 19-21 ...
openaire +3 more sources
Dynamical evolution of triplets of galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 By means of N-body simulations we study the global dynamics of triplets of galaxies, considering initial conditions starting from `maximum expansion' and in virial equilibrium. Unlike previous studies we treat galaxies self-consistently. We do not consider the influence of a primordial common halo of dark matter.
openaire +2 more sources
Scalable Computation of Topological Abstractions for Scalar Data
Computer Graphics Forum, EarlyView.Abstract Topological data analysis has become an important tool for large scale scalar data analysis and visualization, efficiently extracting the inherent structure and features of interest of the data. However, with growing dataset sizes and complexity, it is increasingly becoming infeasible to compute topological abstractions of interest in serial ...
M. Will +6 more
wiley +1 more source
The Clustering of Dark Matter, Haloes & Galaxies [PDF]
, 2008 In this thesis I study the spatial distribution of galaxies, haloes and dark matter particlesin the Universe. The subjects investigated are conceptually divided into three areas.One line of research, which is made up of Chapters 2 and 3， is to explore ...
Raúl Esteban Angulo de la Puente,
core
Kinematic and Dynamics of the Galaxy ESO 358-60
The Astrophysical JournalWe investigate the velocity field derived from H I measurements of the irregular galaxy ESO 358-60 using the velocity ring model (VRM) method. This technique, which assumes a coplanar disk, allows us to reconstruct coarse-grained maps of both radial and ...
Francesco Sylos Labini +1 more
doaj +1 more source
Distribution and Kinematics of Classical Cepheids in the Galactic Outer Ring
Open Astronomy, 2015 The existence of an outer ring in the Galaxy can explain the kinematics of OB associations in the Perseus and Sagittarius stellar-gas complexes. Moreover, it can also explain the orientation of the Carina arm with respect to the major axis of the bar. We
Mel’nik A. M. +4 more
doaj +1 more source
Survey on Visualization of Information Diffusion over Networks
Computer Graphics Forum, EarlyView.Abstract Information Diffusion (ID) describes how a value (e.g., a pathogen, a rumor, a packet) spreads through an underlying “medium” network of elements (e.g., a social or computer network). Understanding the information diffusion process is essential to predicting trends, controlling misinformation, and enhancing decision‐making as well as ...
T. Baumgartl +8 more
wiley +1 more source