File:M31, GS (nomenclature structures in the outer halo of the galaxy).jpg
Original file (4,816 × 3,897 pixels, file size: 15.35 MB, MIME type: image/jpeg)
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Summary[edit]
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| Description |
English: Andromeda [Ultra Deep 2019]
This image offers a good overview of the main structures on the disc and the external halo of Andromeda (M31). The disc appears quite regular and there is an abundant presence of young stars, gases and abundant dusts. The bulge is dominated by an older population. The external halo presents various irregularities and thickenings that we can consider as vestiges of dwarf galaxies incorporated progressively by the greater galaxy, as foreseen by the growth models. M31 is thought to have assimilated a few hundred small galaxies or globular clusters. This process is still ongoing. According to Ferguson et al. (2002), the names attributed to the various substructures, unknown to most, they are reported in the negative image with disc color inset. More about: Evidence For Stellar Substructure In the Halo and Outer Disk of M31 |
| Date | |
| Source | M31 (nomenclature structures in the outer halo of the galaxy) |
| Author | Giuseppe Donatiello from Oria (Brindisi), Italy |
| Other versions |
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Licensing[edit]
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This image, originally posted to Flickr, was reviewed on 8 June 2020 by the administrator or reviewer Speravir, who confirmed that it was available on Flickr under the stated license on that date. |
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:54, 6 June 2020 | | 4,816 × 3,897 (15.35 MB) | Fabian RRRR (talk | contribs) | color for author's name changed |
| 21:19, 5 June 2020 |  | 4,816 × 3,897 (15.37 MB) | Fabian RRRR (talk | contribs) | passepartoutremoved | |
| 21:11, 5 June 2020 |  | 4,848 × 3,919 (9.9 MB) | Fabian RRRR (talk | contribs) | GSS -> GS | |
| 15:55, 5 June 2020 |  | 4,848 × 3,919 (9.49 MB) | Fabian RRRR (talk | contribs) | == {{int:filedesc}} == {{Information |Description=Andromeda [Ultra Deep 2019] Credit: Giuseppe Donatiello This image offers a good overview of the main structures on the disc and the external halo of Andromeda (M31). The disc appears quite regular and there is an abundant presence of young stars, gases and abundant dusts. The bulge is dominated by an older population. The external halo presents various irregularities and thickenings that we can consider as vestiges of dwarf galaxies incorpor... |
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