Tucana II
E501537
Tucana II is an ultra-faint dwarf galaxy and one of the Milky Way’s most primitive satellite galaxies, notable for its extremely low metallicity and ancient stellar population.
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
Local Group galaxy
ⓘ
satellite galaxy of the Milky Way ⓘ ultra-faint dwarf galaxy ⓘ |
| discoveredBy | Dark Energy Survey collaboration NERFINISHED ⓘ |
| discoveryMethod | wide-field photometric survey ⓘ |
| environment | outer halo of the Milky Way ⓘ |
| galaxyType | ultra-faint dwarf ⓘ |
| hasDarkMatterContent | high mass-to-light ratio ⓘ |
| hasGasContent | gas-poor ⓘ |
| hasImportanceIn |
early chemical evolution studies
ⓘ
near-field cosmology ⓘ |
| hasKinematics | dispersion-dominated ⓘ |
| hasMetallicity | extremely low ⓘ |
| hasProperty |
chemically primitive
ⓘ
dark-matter dominated ⓘ low luminosity ⓘ low stellar mass ⓘ low surface brightness ⓘ very metal-poor stars ⓘ |
| hasRoleIn |
constraining small-scale structure in ΛCDM cosmology
ⓘ
testing models of reionization feedback ⓘ |
| hasStarFormation | no current star formation ⓘ |
| hasStarFormationHistory | ancient, quenched ⓘ |
| hasStars |
extremely metal-poor stars
ⓘ
very old red giant branch stars ⓘ |
| hasStellarPopulation |
ancient
ⓘ
old, Population II stars ⓘ |
| hostGalaxy | Milky Way NERFINISHED ⓘ |
| isConsidered |
a fossil of early galaxy formation
ⓘ
one of the Milky Way’s most primitive satellites ⓘ |
| isExampleOf | ultra-faint dwarf galaxy population around the Milky Way ⓘ |
| locatedInConstellation | Tucana NERFINISHED ⓘ |
| memberOf | Local Group NERFINISHED ⓘ |
| metallicityRelativeToSun | much lower than solar ⓘ |
| orbits | Milky Way NERFINISHED ⓘ |
| satelliteOf | Milky Way NERFINISHED ⓘ |
| usedAs | probe of first-generation star enrichment ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tucana