THE halo of our galaxy is a nearly spherical region containing very old stars which have a smaller content of heavy elements than our Sun. There is no detailed model for its formation. It is usually assumed that somehow a cloud of gas condensed to form our galaxy and that the halo stars...
* Completely missing first generation of (Population III) stars: Big bang theory predicts that many "first generation" stars (which are referred to not as Population I, but as Population III stars), would contain only the light elements claimed to have formed in the big bang (hydrogen and ...
1.a very large group of stars.galaxia 2.a large group of famous, impressiveetcpeople, thingsetc.a galaxy of entertainers;a galaxy of new cars.constelación the Galaxythe Milky Wayundermilk Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd. ...
Deep Rock Galactic: Survivor (Steam) Deep Sky Derelicts (Steam) Deepest Chamber (Epic Games Store, Steam) Deliver Us Mars (Epic Games Store, Steam) Deliver Us The Moon: Fortuna (Steam) Demonologist (Steam) Depth (Steam) Derail Valley (Steam) ...
the orbital rings of two adjacent planets undergoes an in-out-switching phenomenon due to overlapped gravitational interactions between Sun and planet, planet and planet, and gravitational interactions between the Solar System as whole and the super-massive black hole that lies in the galactic center...
We report on two major surveys for metal-poor stars in the galactic halo, the HK survey, and the Hamburg/ESO survey, which have been undertaken in order to provide targets for high-resolution spectroscopy with the Subaru HDS and other large telescopes. We compare basic properties of these ...
Without a source of new gas, our Galaxy would exhaust its supply of gas through the formation of stars. Ionized gas clouds observed at high velocity may be... N Lehner,JC Howk - 《Science》 被引量: 74发表: 0年 Mapping the substructure in the Galactic halo with the next generation of ...
Relics of the Formation of the Galactic Halo from Gaia and APOGEE The solar neighborhood potentially contains a very large number of kinematic groups which are related to the various building blocks of the stellar halo. W... P Fiorentin,M Lattanzi,A Spagna - Gaia-ecological Perspectives for ...
The best chance for this to work seems to be an astrophysical effect leading to the formation of the DM halo cores, via a global feedback created by explosions of galactic supernovae (e.g., [46]). We stress that, for this process and for any other with the same aim, the most ...
关键词: dark matter Galaxy, stellar content, halo brown dwarfs Magellanic Clouds gravitational lensing 被引量: 102 摘要: We present results from a search for gravitational microlensing of stars in the Large Magellanic Cloud by low mass objects in the Galactic Halo. The search uses the CCD ...