Near-infrared imaging of the Becklin-Neugebauer-IRc2 region in Orion with subarcsecond resolution
| Autor: | R. G. Probst, Stephen T. Ridgway, C. Dougados, Pierre Léna, J. C. Christou |
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| Rok vydání: | 1993 |
| Předmět: |
Physics
Infrared Resolution (electron density) Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics law.invention Wavelength Speckle pattern Space and Planetary Science law Orion Nebula Astrophysics::Solar and Stellar Astrophysics Angular resolution Maser Astrophysics::Galaxy Astrophysics Cosmic dust |
| Zdroj: | The Astrophysical Journal. 406:112 |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.1086/172424 |
| Popis: | The Becklin-Neugebauer source has been partially resolved by speckle imagery at 3.6 μm with an angular resolution of 0.″2. The images, fluxes, and additional constraints are consistent with a spherical dust shell of inner diameter 0.″1, surrounding a hot star. The surrounding region, including the vicinity of IRc2, has been imaged with short-exposure/deconvolution methods at several wavelengths, at a resolution of 0.″5. IRc2 is resolved into four components, and the fluxes of the detected sources were determined at 2.8 and 4 μm. Accurate astronomy of the infrared sources with respect to the SiO maser emission has been obtained. The centroid of the SiO maser is definitely not located at the center of symmetry between lobes A and B, but may correspond to IRc2 component A |
| Databáze: | OpenAIRE |
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