GD-1 stream
E502434
The GD-1 stream is a long, thin tidal stream of stars in the Milky Way’s halo, believed to be the remnant of a disrupted globular cluster and a key probe of the Galaxy’s dark matter distribution.
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical structure
ⓘ
stellar tidal stream ⓘ |
| discoveredBy | Carl J. Grillmair NERFINISHED ⓘ |
| discoveredIn | 2006 ⓘ |
| discoveredUsing | Sloan Digital Sky Survey NERFINISHED ⓘ |
| hasAge | several billion years ⓘ |
| hasComponent | old stars ⓘ |
| hasDynamics | phase-mixed tidal debris ⓘ |
| hasKinematics | cold stellar stream ⓘ |
| hasLength | over 60 degrees on the sky ⓘ |
| hasMetallicity | metal-poor ⓘ |
| hasOrbitType | highly eccentric orbit ⓘ |
| hasPopulation | halo stars ⓘ |
| hasProgenitorType | globular cluster ⓘ |
| hasReferenceFrame | Galactocentric coordinates ⓘ |
| hasShape | long thin stream ⓘ |
| hasSignificance |
benchmark system for testing dark matter models
ⓘ
key tracer of Galactic halo structure ⓘ |
| hasStellarPopulation | old metal-poor stars ⓘ |
| hasWidth | less than 1 degree on the sky ⓘ |
| isCandidateProbeFor | dark matter subhalos ⓘ |
| isExampleOf | cold thin stellar stream ⓘ |
| isObservedIn | optical wavelengths ⓘ |
| isPerturbedBy |
Galactic bar
NERFINISHED
ⓘ
Milky Way disk NERFINISHED ⓘ |
| isRemnantOf | globular cluster ⓘ |
| isSubjectOf |
dark matter substructure searches
ⓘ
stellar stream dynamical modeling ⓘ |
| isUsedToConstrain |
Milky Way mass distribution
ⓘ
properties of dark matter clumps ⓘ |
| locatedIn | Milky Way halo NERFINISHED ⓘ |
| orbits | Milky Way NERFINISHED ⓘ |
| originatesFrom | disrupted globular cluster ⓘ |
| partOf | Milky Way galaxy NERFINISHED ⓘ |
| showsFeature |
density variations
ⓘ
gaps ⓘ spurs ⓘ |
| studiedWith |
Gaia mission data
ⓘ
Sloan Digital Sky Survey photometry ⓘ |
| traces | Milky Way halo potential ⓘ |
| usedAsProbeFor |
Milky Way dark matter distribution
ⓘ
Milky Way gravitational potential ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.