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 3

How this entity was disambiguated

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 ⓘ
expanding dust shells ⓘ
expanding gas shells ⓘ
catalogCode Radio Loop I ⓘ
centeredNear Scorpius–Centaurus region ⓘ
contributesTo Galactic diffuse X-ray background ⓘ
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) ⓘ
North Polar Spur ⓘ
studiedIn X-ray astronomy ⓘ
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 ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.