File:The Core of Peculiar Galaxy Arp 220 (1992-16-67).jpg
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An image of the central part of the ultra-luminuous infrared galaxy Arp 220 taken with the WFPC on the Hubble Space Telescope. HST reveals a new complex structure within one arc second of the nucleus.
Summary[edit]
| Description |
English: An image of the central part of the ultra-luminuous infrared galaxy Arp 220 taken with the WFPC on the Hubble Space Telescope. HST reveals a new complex structure within one arc second of the nucleus. While part of the this structure was seen in radio interfero-metric maps, most of the structure is new. HST reveals a new class of object at the core: gigantic young star clusters which are ten times larger than any clusters observed previously. They were probably produces by the collision of two spiral galaxies. Stars are produced at a furious rate from the dust and gas supplied by the collision. The HST images optically resolve two bright sources (first identified by radio observations) which are the two nuclei of the merged galaxies. Astronomers have never before seen such a "starburst galaxy" so close-up. The core of Arp 220 promises to be a unique laboratory for studying the late evolution of massive stars. |
| Date | 2 June 1992 (upload date) |
| Source | The Core of Peculiar Galaxy Arp 220 |
| Author | Credit: E. Shaya, D. Dowling/U. of Maryland, the WFPC Team, and NASA |
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Licensing[edit]
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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