Galaxy:structureGalaxy:bulgeGalaxy:kinematics and dynamicsgalaxies:spiralgalaxies:structureThe Milky Way is a spiral galaxy with the Schechter characteristic luminosity L_*, thus an important anchor point of the Hubble sequence of all spiral galaxies. Yet the true appearance of the Milky Way has remai...
Star Counts and the Milky Way Structure 来自 Semantic Scholar 喜欢 0 阅读量: 14 作者: AC Robin 摘要: While the accuracy of photometric star counts rises, constraints on the stellar population characteristics improve and allow synthetic models to be conceived to explain the galactic structure. ...
so if we can understand how the Milky Way formed its bulge, then we’ll have a good idea for how the other galaxies did too,” said co-principal investigator Christian Johnson of the Space Telescope Science Institute in Baltimore, Maryland. Johnson is the lead aut...
Unique Structure Found in a Galactic Arm of the Milky Way: With Anton Petrov. The common perception of a spiral galaxy consists of two or more neatly defined spiral arms around a bright nucleus. But the arms are not always well defined. Flocculant spiral
“What is most exciting about this survey is that it can really help pin down the global galactic structure of the Milky Way, providing an astounding 3D view of the inner galaxy,” she said. “With this survey we really have the ability to start pushing the ...
Galaxy: structurestars: variables: otherWe study the distribution of radial velocities of RR Lyrae stars in the same region of the sky where a large overdensity of main sequence stars have been detected by SDSS. Our results indicate that several independent stellar streams co-exist in the ...
(无数的) stars is not flat but dramaticallywarped and twisted in shape.The researchers on Thursday unveiled a three-dimensional map of the Milky Way-home to more than 100 illionstar including our sun-providing a comprehensive chat of ts structure; a stellar disk comprised of four major spiral...
The structure and evolution of the spiral arms of our Milky Way are basic but long-standing questions in astronomy. In particular, the lifetime of spiral arms is still a puzzle and has not been well constrained from observations. In this work, we aim to
The Milky Way “There is a high track, seen when the sky is clear, called the Milky Way, and known for its brightness. This way the gods pass to the palaces and halls of the mighty Thunderer [Zeus/Jupiter]. To right and left are the houses of the greater gods, doors open and ...
large-scale structure of universeVarious dynamically important extragalactic large-scale structures in the local Universe lie behind the Milky Way. Most of ... RC Kraan-Korteweg,PA Woudt - 《Publications of the Astronomical Society of Australia》 被引量: 47发表: 1999年 A statistical study of the...