ionizingSource
P58484
predicate
Indicates that the subject acts as a source that produces or emits ionizing radiation affecting the object.
Observed surface forms (12)
| Surface form | Occurrences |
|---|---|
| ionizedBy | 26 |
| ionizationSource | 12 |
| hasIonizingSources | 6 |
| isIonizingSourceFor | 4 |
| hasIonizationSource | 2 |
| drivesIonization | 1 |
| ionizingPhotonSourceFor | 1 |
| ionizingSourceOfBackground | 1 |
| ionizingSourceType | 1 |
| ionizingSources | 1 |
| isIonizingSource | 1 |
| isIonizingSourceOf | 1 |
Sample triples (70)
| Subject | Object |
|---|---|
| Messier 17 | massive O-type stars ⓘ |
| Eagle Nebula | massive O-type stars via predicate surface "ionizedBy" ⓘ |
| NGC 7538 | massive O-type stars ⓘ |
|
NGC 281 (Pacman Nebula)
surface form:
NGC 281
|
massive O-type stars in IC 1590 ⓘ |
| Lagoon Nebula | hot O-type stars via predicate surface "ionizingSources" ⓘ |
| Trifid Nebula | massive O-type star ⓘ |
|
NGC 1499 (California Nebula)
surface form:
NGC 1499
|
ξ Persei
ⓘ
surface form:
Xi Persei
|
| North America Nebula | massive O-type star ⓘ |
| NGC 604 | massive young stars ⓘ |
| 30 Doradus | massive young stars via predicate surface "ionizationSource" ⓘ |
|
IC 1805 (Heart Nebula)
surface form:
IC 1805
|
massive O-type stars in Melotte 15 ⓘ |
|
IC 1848 (Soul Nebula)
surface form:
IC 1848
|
ultraviolet radiation from young stars via predicate surface "ionizedBy" ⓘ |
| Alnitak | nearby emission nebulae via predicate surface "isIonizingSourceFor" ⓘ |
| Tarantula Nebula | massive O-type stars via predicate surface "ionizedBy" ⓘ |
| Tarantula Nebula | Wolf–Rayet stars via predicate surface "ionizedBy" ⓘ |
| Horsehead Nebula |
σ Orionis cluster
via predicate surface "ionizingSourceOfBackground"
ⓘ
surface form:
Sigma Orionis
|
| Barnard's Loop | massive stars in Orion OB1 association via predicate surface "ionizedBy" ⓘ |
| Messier 16 | massive hot stars in NGC 6611 via predicate surface "ionizedBy" ⓘ |
| NGC 3372 | massive OB stars ⓘ |
| NGC 6514 | massive young stars via predicate surface "ionizedBy" ⓘ |
| Caldwell 49 | massive stars of NGC 2244 via predicate surface "ionizedBy" ⓘ |
| Sh 2-275 | OB stars in NGC 2244 via predicate surface "ionizedBy" ⓘ |
| M42 | massive O-type stars via predicate surface "ionizedBy" ⓘ |
| M42 | Theta1 Orionis C via predicate surface "ionizedBy" NERFINISHED ⓘ |
| M43 | massive young stars via predicate surface "ionizationSource" ⓘ |
| NGC 1977 | hot young stars via predicate surface "ionizationSource" ⓘ |
|
H II regions
surface form:
H II region
|
Lyman continuum photons via predicate surface "ionizedBy" ⓘ |
| Atik | nearby interstellar medium via predicate surface "isIonizingSourceFor" ⓘ |
| HD 24131 | true via predicate surface "isIonizingSource" ⓘ |
|
planetaryNebula IC 1295
surface form:
IC 1295
|
ultraviolet radiation from central star via predicate surface "hasIonizationSource" ⓘ |
| NGC 2024 | Alnitak NERFINISHED ⓘ |
| Ring Nebula | ultraviolet radiation from central white dwarf via predicate surface "ionizationSource" ⓘ |
| Flame Nebula | Alnitak via predicate surface "ionizedBy" NERFINISHED ⓘ |
| Flame Nebula | massive O-type star via predicate surface "ionizingSourceType" ⓘ |
| IC 1805 | massive O-type stars via predicate surface "ionizationSource" ⓘ |
| IC 1805 | young star cluster Melotte 15 via predicate surface "ionizationSource" NERFINISHED ⓘ |
| Pacman Nebula | massive stars in IC 1590 via predicate surface "ionizedBy" ⓘ |
| IC 1590 | NGC 281 H II region via predicate surface "isIonizingSourceOf" NERFINISHED ⓘ |
| W5 H II region | massive O-type stars via predicate surface "hasIonizingSources" ⓘ |
| W5 H II region | early B-type stars via predicate surface "hasIonizingSources" ⓘ |
| Hourglass Nebula region | ultraviolet radiation from massive stars via predicate surface "ionizedBy" ⓘ |
| 9 Sagittarii | Lagoon Nebula H II region via predicate surface "drivesIonization" NERFINISHED ⓘ |
| 9 Sagittarii | M8 (Lagoon Nebula) via predicate surface "ionizingPhotonSourceFor" NERFINISHED ⓘ |
| Heart Nebula | hot O-type stars via predicate surface "ionizationSource" ⓘ |
| Heart Nebula | hot B-type stars via predicate surface "ionizationSource" ⓘ |
| Caldwell 20 | Deneb NERFINISHED ⓘ |
| NGC 6523 | hot young massive stars via predicate surface "ionizedBy" ⓘ |
| Hubble V | massive O-type stars via predicate surface "ionizedBy" ⓘ |
| Hubble V | young stellar population via predicate surface "ionizedBy" ⓘ |
| Pelican Nebula | nearby hot stars via predicate surface "ionizedBy" ⓘ |