ScienceDaily: Galaxies News |
- Hubble uncovers largest known population of star clusters
- The inside of the Milky Way Galaxy in 3-D
- The peanut at the heart of our galaxy: Best 3-D map yet of central bulge of the Milky Way
| Hubble uncovers largest known population of star clusters Posted: 12 Sep 2013 08:27 AM PDT NASA's Hubble Space Telescope has uncovered the largest known population of globular star clusters, an estimated 160,000, swarming like bees inside the crowded core of the giant grouping of galaxies Abell 1689. By comparison, our Milky Way galaxy hosts about 150 such clusters. |
| The inside of the Milky Way Galaxy in 3-D Posted: 12 Sep 2013 06:27 AM PDT Scientists have produced the first detailed three-dimensional map of the stars that form the inner regions of our Milky Way, using publicly available VVV survey data. They find a box/peanut shaped bulge with an elongated bar and a prominent X-structure, which had been hinted at in previous studies. This indicates that the Milky Way was originally a pure disk of stars, which then formed a thin bar, before buckling into the box/peanut shape seen today. The new map can be used for more detailed studies of the dynamics and evolution of our Milky Way. |
| The peanut at the heart of our galaxy: Best 3-D map yet of central bulge of the Milky Way Posted: 12 Sep 2013 06:25 AM PDT Two groups of astronomers have used data from ESO telescopes to make the best three-dimensional map yet of the central parts of the Milky Way. They have found that the inner regions take on a peanut-like, or X-shaped, appearance from some angles. This odd shape was mapped by using public data from ESO's VISTA survey telescope along with measurements of the motions of hundreds of very faint stars in the central bulge. |
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