VLA observations at 7 mm of the planetary nebula ic 4997
We present high angular resolution (0.100) VLA observations at 7 mm wavelength towards the planetary nebulawith bipolar morphology IC 4997. We detect a compact central structure possibly associated with the inner corereported by Miranda & Torrelles (1998) and discuss whether or not this detectio...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | México |
| Recursos: | Universidad Michoacana de San Nicolás de Hidalgo |
| Repositorio: | Redalyc-UMSNH |
| OAI Identifier: | oai:redalyc.org:57112045 |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=57112045 |
| Access Level: | acceso abierto |
| Palavra-chave: | Física, Astronomía y Matemáticas PLANETARY NEBULAE: INDIVIDUAL (IC 4997) |
| Resumo: | We present high angular resolution (0.100) VLA observations at 7 mm wavelength towards the planetary nebulawith bipolar morphology IC 4997. We detect a compact central structure possibly associated with the inner corereported by Miranda & Torrelles (1998) and discuss whether or not this detection is related to dust emission.The spectral index of the central region has also been derived using observations at other frequencies madewith similar angular resolution. |
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