arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1202.4172astro-ph.SR
收藏

来自SOFIA/FORCAST的第一个科学结果:37 \micron的S140簇的超分辨率成像

First Science Results From SOFIA/FORCAST: Super-Resolution Imaging of the S140 Cluster at 37\micron

Paul M. Harvey, Joseph D. Adams, Terry L. Herter, George Gull, Justin Schoenwald, Luke D. Keller, James M. De Buizer, William Vacca, William Reach, E. E. Becklin

摘要:

我们提出了37 \micron \成像的S140复杂的红外源集中在IRS 1与FORCAST相机在SOFIA。这些观测是最长波长的成像,可以清楚地分辨出在较短波长处看到的三个主要来源,IRS 1,2和3,并且几乎达到2.5米望远镜的衍射极限。我们还在11和31 \micron \处获得了少量图像,这些图像可用于通量测量。我们的图像覆盖了在该区域看到的几个强亚毫米源的区域- SMM 1,2和3 -与任何中红外源不一致,并且在我们的较长波长成像中也不可见。我们的新观测结果证实了以前对这个可能的早期B星星团中的成分的相对尘埃光学深度和源光度的估计。我们还研究了使用超分辨率超越SOFIA成像中的基本衍射极限,并发现van Cittert算法与“多分辨率”技术一起提供了出色的结果。

英文摘要:

We present 37\micron\ imaging of the S140 complex of infrared sources centered on IRS1 made with the FORCAST camera on SOFIA. These observations are the longest wavelength imaging to resolve clearly the three main sources seen at shorter wavelengths, IRS 1, 2 and 3, and are nearly at the diffraction limit of the 2.5-m telescope. We also obtained a small number of images at 11 and 31\micron\ that are useful for flux measurement. Our images cover the area of several strong sub-mm sources seen in the area -- SMM 1, 2, and 3 -- that are not coincident with any mid-infrared sources and are not visible in our longer wavelength imaging either. Our new observations confirm previous estimates of the relative dust optical depth and source luminosity for the components in this likely cluster of early B stars. We also investigate the use of super-resolution to go beyond the basic diffraction limit in imaging on SOFIA and find that the van Cittert algorithm, together with the "multi-resolution" technique, provides excellent results.

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。

↑