File:Tracing an Element in Two Stars (4774).jpg
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Hubble’s ULLYSES program will observe the ultraviolet light stars emit—and spread that light into its component wavelengths, which are known as spectra. These spectra show the presence of iron in two stars.
Summary[edit]
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| Description |
English: Hubble’s ULLYSES program will observe the ultraviolet light stars emit—and spread that light into its component wavelengths, which are known as spectra. These spectra show the presence of iron in two stars. The star in Sextans A, represented in purple, doesn’t contain much iron, which implies that it may have formed from elements that made up the early universe, which contained a higher percentage of hydrogen and helium. The star in the Large Magellanic Cloud, represented in teal, has dips that reflect the presence of iron. This star is made from the elements expelled into its environment from previous generations of stars. The amounts of heavier elements, such as iron, can affect the life of the star and the strength of its winds. |
| Date | 5 November 2020 (upload date) |
| Source | Tracing an Element in Two Stars |
| Author | , , and Z. Levy () |
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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