Toward an imaging capability with the Southern Connecticut Stellar Interferometer

Toward an imaging capability with the Southern Connecticut Stellar Interferometer
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利用南康涅狄格恒星干涉仪实现成像能力

DOI:
10.1117/12.2576346
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发表时间:
2020
期刊:
Optical and Infrared Interferometry and Imaging VII
影响因子:
--
通讯作者:
Horch, Elliott
Horch, Elliott
中科院分区:
--
文献类型:
--
作者:
Klaucke, Paul;Pellegrino, Richard;Weiss, Samuel;Horch, Elliott

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南康涅狄格恒星干涉仪(Southern Connecticut Stellar Interferometer,SCSI)是一种强度干涉仪,设计用于使用相关光子到达时间来确定恒星的几何形状。它最初是一个低成本的双望远镜仪器,在每个望远镜的焦平面上使用一个1像素的单光子雪崩二极管探测器来记录光子事件,现在正在升级,包括第三个望远镜。这将允许在三个基线处同时检测光子相关性,从而能够比双望远镜布置更有效地绘制出源的二维几何形状。最近的文献中的论文表明,它可能是可能的,以获得相位信息的傅立叶域从这样的三重相关性的最亮的恒星,可能给SCSI的成像能力。在调查这种可能性之前,必须采取措施最大限度地提高SCSI的观察效率。我们在这里提出我们的最新努力,实现更好的指向,跟踪和准直与我们的望远镜,我们讨论了我们的第一个建模结果的三个望远镜的情况下,以了解在什么条件下升级的SCSI可以检索成像信息。
The Southern Connecticut Stellar Interferometer (SCSI) is an intensity interferometer that is designed to use correlated photon arrival times to determine the geometry of stars. Originally a low-cost, two-telescope instrument that used a 1-pixel single-photon avalanche diode (SPAD) detector at the focal plane of each telescope to record photon events, it is now being upgraded to include a third telescope. This will allow for the simultaneous detection of the photon correlation at three baselines, and thus the ability to map out the two-dimensional geometry of the source much more efficiently than with the two-telescope arrangement. Recent papers in the literature suggest that it may be possible to derive phase information in the Fourier domain from such triple correlations for the brightest stars, potentially giving SCSI an imaging capability. Prior to investigating this possibility, steps must be taken to maximize the observing efficiency of the SCSI. We present here our latest efforts in achieving better pointing, tracking, and collimation with our telescopes, and we discuss our first modeling results of the three-telescope situation in order to understand under what conditions the upgraded SCSI could retrieve imaging information.
DOI: --
发表时间: 1958
期刊: Proceedings of the Royal Society of London. Series A, Mathematical and physical sciences
影响因子: --
作者:
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期刊:
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DOI: --
发表时间: 2016
期刊: Astronomical Telescopes + Instrumentation
影响因子: --
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DOI: --
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