structure, provides an example of the richness of phenomena in collisionless stellar systems and may teach something about the structure of the invisible ... CC Lin,G Bertin - 《Advances in Applied Mechanics》 被引量: 0发表: 1984年 Hubble Sights Galaxy Stuck in the Middle lacks the well-defi...
We analyse a sample of 507 evolved stars in the inner galactic Plane. We derive average ages for subsets of this sample and use those sets as beacons for the evolution of the Galaxy. In the Bulge the oldest OH/IR stars in the plane are 7.5 Gyr, in the Di
The distribution of cosmic-ray sources in the Galaxy, $\\mathsf{\\gamma}$-rays and the gradient in the CO-to-H$\\mathsf{_2}$ relation We present a solution to the apparent discrepancy between the radial gradient in the diffuse Galactic gamma-ray emissivity and the distribution of super...
Galaxy Structure In subject area: Physics and Astronomy Galaxy structure refers to the organization of stars and interstellar gas within a galaxy, including the formation of structures like galactic disks and halos through physical processes such as cooling, condensation, and dynamical interactions. AI ...
of the nucleus, the structure of the galaxy changes steadily. This continuous flow of matter from the nucleus of our Galaxy and that of M31 has been observed (e.g., Rougoor and Oort, 1960). In fact, the ejection of mass from the central core has been observed to be a common and ...
Research over the past 25 years has led to the view that the rich tapestry of present-day cosmic structure arose during the first instants of creation, where weak ripples were imposed on the otherwise uniform and rapidly expanding primordial soup. Over 14 billion years of evolution, these ripple...
Imaging and spectroscopy with the Very Large Telescope have revealed 20 Lyα emitters within a projected distance of 1.3 Mpc and 600 km s-1 of the luminous radio galaxy TN J1338-1942 at z = 4.1. Compared to the field density of Lyα emitters, this implies an overdensity on the order ...
Flaglets for studying the large-scale structure of the Universe Pressing questions in cosmology such as the nature of dark matter and dark energy can be addressed using large galaxy surveys, which measure the positions,... B Leistedt,HV Peiris,JD Mcewen - Wavelets and Sparsity XV 被引量: ...
The structure of massive quiescent galaxies at z∼3z∼3 in the CANDELS-COSMOS field. Astrophys J Lett , 2013 , 771: 40 -44 CrossRef Google Scholar [12] Van Der Wel A, Franx M, Van Dokkum P G, et al. 3D-HST+CANDELS: The evolution of the galaxy size-mass distribution si...
geometry and mass distribution of the luminous and dark components, and realized that they all seem to point towards the same conclusion: the baryons hosted inside the halo, by collapsing and assembling to form the galaxy, perturb the halo equilibrium structure and made it evolve into new config...