A windswept cloud core adjacent to HH 2
We analyze an Hα image of the HH 1/2 region of unprecedented depth. In this image, the outflows and other emission structures of this region are clearly seen. We focus on a description of the “hill’, which is an approximately circular feature directly to the SW of HH 2. Through an analysis of our Hα...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:57171627013 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57171627013 https://www.redalyc.org/journal/571/57171627013/ https://www.redalyc.org/journal/571/57171627013/html/ https://www.redalyc.org/journal/571/57171627013/57171627013.epub https://www.redalyc.org/journal/571/57171627013/movil |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas Evolution HII regions stars: formation ISM: kinematics and dynamics |
| Sumario: | We analyze an Hα image of the HH 1/2 region of unprecedented depth. In this image, the outflows and other emission structures of this region are clearly seen. We focus on a description of the “hill’, which is an approximately circular feature directly to the SW of HH 2. Through an analysis of our Hα image and IR images (obtained with the IRAC camera of the Spitzer telescope), we show that while the “hill” is consistent with previous interpretations of this object as a PDR (excited by the UV radiation of HH 2), it also shows features implying that the partially photo-dissociated molecular clump is embedded in an environment which is streaming from N to S. This motion might be the result of the expansion of the Orion nebula, or of an uncollimated, outwards directed flow from the central region of the HH 1/2 system. |
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