Visible light adaptive optics imaging of the orion 218-354 silhouette disk

Katherine B. Follette, Laird M. Close, Jared R. Males, Derek Kopon, Ya Lin Wu, Katie M. Morzinski, Philip Hinz, Timothy J. Rodigas, Alfio Puglisi, Simone Esposito, Armando Riccardi, Enrico Pinna, Marco Xompero, Runa Briguglio

研究成果: 書貢獻/報告類型會議論文篇章

摘要

We present the first ground-based adaptive optics images of a silhouette disk. This disk, Orion 218-354, is seen in silhouette against the bright nebular background of Orion, and was resolved using the new Magellan Adaptive Secondary AO system and its VisAO camera in Simultaneous Differential Imaging (SDI) mode. PSF subtraction of Orion 218-354 reveals a disk ~1″ (400 AU) in radius, with the degree of absorption increasing steadily towards the center of the disk. By virtue of the central star being unsaturated, these data probe inward to a much smaller radius than previous HST images. Our data present a different picture than previous observers had hypothesized, namely that the disk is likely optically thin at Hα at least as far inward as ~20AU. In addition to being among the first high-resolution AO images taken in the optical on a large telescope, these data reveal the power of SDI imaging to illuminate disk structure, and speak to a bright future for visible AO imaging. Analysis of the results described briefly here can be found in full detail in Follette et al. (2013).

原文英語
主出版物標題Exploring the Formation and Evolution of Planetary Systems
發行者Cambridge University Press
頁面159-160
頁數2
版本S299
ISBN(列印)9781107045200
DOIs
出版狀態已發佈 - 2013 六月
對外發佈

出版系列

名字Proceedings of the International Astronomical Union
號碼S299
8
ISSN(列印)1743-9213
ISSN(電子)1743-9221

ASJC Scopus subject areas

  • 醫藥(雜項)
  • 天文和天體物理學
  • 營養與營養學
  • 公共衛生、環境和職業健康
  • 空間與行星科學

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