Academic Journal
Interferometer Observations of Subparsec-scale Infrared Emission in the Nucleus of NGC 4151
| العنوان: | Interferometer Observations of Subparsec-scale Infrared Emission in the Nucleus of NGC 4151 |
|---|---|
| المؤلفون: | M. Swain, G. Vasisht, R. Akeson, J. Monnier, R. Millan-gabet, E. Serabyn, M. Creech-eakman, G. Van Belle, J. Beletic, C. Beichman, A. Boden, A. Booth, M. Colavita, J. Gathright, M. Hrynevych, C. Koresko, D. Le Mignant, R. Ligon, B. Mennesson, C. Neyman, A. Sargent, M. Shao, R. Thompson, S. Unwin, P. Wizinowich |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://arxiv.org/pdf/astro-ph/0308513v1.pdf. |
| سنة النشر: | 2003 |
| المجموعة: | CiteSeerX |
| الوصف: | We report novel, high-angular resolution interferometric measurements that imply the near-infrared nuclear emission in NGC 4151 is unexpectedly compact. We have observed the nucleus of NGC 4151 at 2.2 µm using the two 10-meter Keck telescopes as an interferometer and find a marginally resolved source ≤ 0.1 pc in diameter. Our measurements rule out models in which a majority of the K band nuclear emission is produced on scales larger than this size. The interpretation of our measurement most consistent with other observations is that the emission mainly originates directly in the central accretion disk. This implies that AGN unification models invoking hot, optically thick dust may not be applicable to |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.254.6458; http://arxiv.org/pdf/astro-ph/0308513v1.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.254.6458 http://arxiv.org/pdf/astro-ph/0308513v1.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.7506095D |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |