W3(OH)
E476473
W3(OH) is a compact, massive star-forming region and strong OH maser source within the W3 molecular cloud complex, notable for its intense radio and infrared emission.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
OH maser source ⓘ infrared source ⓘ radio source ⓘ star-forming region ⓘ |
| associatedWith |
dense molecular gas
ⓘ
dusty core ⓘ ultracompact H II region ⓘ |
| belongsTo | Milky Way galaxy NERFINISHED ⓘ |
| distanceFromEarth |
about 2 kiloparsecs
ⓘ
about 6,000 light-years ⓘ |
| emits |
strong infrared radiation
ⓘ
strong radio continuum emission ⓘ |
| has | hot molecular core nearby ⓘ |
| hasAngularSize | sub-arcsecond (for compact core) ⓘ |
| hasEnvironment |
high extinction
ⓘ
high gas density ⓘ |
| hasMaserEmission |
CH3OH
ⓘ
H2O ⓘ OH ⓘ |
| hasOutflows | molecular outflows ⓘ |
| hasParallaxMeasurements | yes ⓘ |
| hasPhysicalProcess |
gravitational collapse of molecular gas
ⓘ
ionization by massive young stars ⓘ maser amplification by population inversion ⓘ |
| hasProperMotionMeasurements | yes ⓘ |
| hasSpectralLineEmission |
hydroxyl (OH)
ⓘ
methanol (CH3OH) ⓘ water (H2O) ⓘ |
| hasStarFormation |
embedded protostars
ⓘ
massive stars ⓘ |
| is |
compact
ⓘ
massive ⓘ well-studied maser source ⓘ |
| locatedIn |
Perseus Arm of the Milky Way
NERFINISHED
ⓘ
W3 molecular cloud complex NERFINISHED ⓘ constellation Cassiopeia NERFINISHED ⓘ |
| near |
W3 Main
NERFINISHED
ⓘ
W3(H2O) NERFINISHED ⓘ |
| observedBy |
Very Large Array
NERFINISHED
ⓘ
Very Long Baseline Interferometry NERFINISHED ⓘ radio interferometers ⓘ |
| partOf | W3 star-forming complex NERFINISHED ⓘ |
| usedFor |
Galactic structure measurements
ⓘ
studies of maser kinematics ⓘ studies of massive star formation ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.