arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0807.3020astro-ph
收藏

红外干涉测量的成像重建：YSO环境的第一张图像

Imaging reconstruction for infrared interferometry: first images of YSOs environment

S. Renard, F. Malbet, E. Thiebaut, J. -P. Berger

备注：
10 pages, 6 figures, Proc. SPIE conference 7013 "Optical and Infrared Interferometry" (Marseille 2008)
阅读 PDF
arXiv 页面 ↗HTML 原文 ↗

摘要：

对原行星盘（行星被认为是在那里形成的）的研究肯定会使我们对太阳系的形成有所了解。为了在毫角秒尺度上对这些天体进行观测，红外干涉测量法为金牛座T、猎户座FU或赫比格Ae/Be星提供了正确的性能。然而，迄今为止获得的唯一信息是直接用模式测试的稀缺能见度测量。随着最近的干涉仪的结果，可以预见获得独立的模型重建的图像。事实上，VLTI上的几个干涉仪，包括IOTA和AMBER，已经提供了一次重组三台望远镜的可能性，从而获得重建图像所需的数据。本文介绍了由E.蒂博我们还预见到使用AMBER数据给出的光谱信息来更好地约束重建图像。我们描述了使用MIRA的实际数据，特别是多系统GW Orionis（IOTA，2004），重建年轻的恒星物体的图像，并讨论了遇到的困难。

英文摘要：

The study of protoplanetary disks, where the planets are believed to form, will certainly allow the formation of our Solar System to be understood. To conduct observations of these objects at the milli-arcsecond scale, infrared interferometry provides the right performances for T Tauri, FU Ori or Herbig Ae/Be stars. However, the only information obtained so far are scarce visibility measurements which are directly tested with models. With the outcome of recent interferometers, one can foresee obtaining images reconstructed independently of the models. In fact, several interferometers including IOTA and AMBER on the VLTI already provide the possibility to recombine three telescopes at once and thus to obtain the data necessary to reconstruct images. In this paper, we describe the use of MIRA, an image reconstruction algorithm developed for optical inter- ferometry data (squared visibilities and closure phases) by E. Thiebaut. We foresee also to use the spectral information given by AMBER data to constrain even better the reconstructed images. We describe the use of MIRA to reconstruct images of young stellar objects out of actual data, in particular the multiple system GW Orionis (IOTA, 2004), and discuss the encountered difficulties.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

↑