Loop I
E459065
Loop I is a large, nearby interstellar superbubble in the Milky Way, associated with expanding gas and dust shells likely driven by past supernovae and stellar winds.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Loop I canonical | 2 |
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
Galactic radio loop
ⓘ
interstellar superbubble ⓘ |
| affects |
distribution of local interstellar gas
ⓘ
foreground emission in cosmic microwave background observations ⓘ |
| age | several million years (order of magnitude) ⓘ |
| alignedWith | large-scale Galactic magnetic field ⓘ |
| angularSize | tens of degrees on the sky ⓘ |
| appearsAs | large radio continuum loop on the sky ⓘ |
| associatedWith |
Scorpius–Centaurus OB association
NERFINISHED
ⓘ
expanding dust shells ⓘ expanding gas shells ⓘ |
| catalogCode | Radio Loop I NERFINISHED ⓘ |
| centeredNear | Scorpius–Centaurus region NERFINISHED ⓘ |
| contributesTo |
Galactic diffuse X-ray background
NERFINISHED
ⓘ
Galactic synchrotron emission ⓘ |
| distanceFromEarth | approximately 100 to 200 parsecs ⓘ |
| drivenBy |
past supernova explosions
ⓘ
stellar winds ⓘ |
| hasComponent |
hot ionized gas
ⓘ
interstellar dust ⓘ neutral gas ⓘ |
| hasPhysicalProcess |
compression of interstellar magnetic fields
ⓘ
shock waves from supernova remnants ⓘ |
| hasUncertain |
exact distance
ⓘ
exact three-dimensional geometry ⓘ |
| locatedIn |
Milky Way
ⓘ
local interstellar medium ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
gamma-ray wavelengths ⓘ microwave wavelengths ⓘ radio wavelengths ⓘ |
| partOf | Galactic halo structures ⓘ |
| relatedTo |
Local Bubble (via local ISM structure)
NERFINISHED
ⓘ
North Polar Spur NERFINISHED ⓘ |
| studiedIn |
X-ray astronomy
NERFINISHED
ⓘ
gamma-ray astronomy ⓘ radio astronomy ⓘ |
| thoughtToBe |
cavity in the interstellar medium
ⓘ
superbubble blown by multiple supernovae ⓘ |
| usedAs |
foreground template in CMB foreground modeling
ⓘ
probe of local interstellar medium structure ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.