Support for Astrophysics from the CHARA Array

CHARA 阵列对天体物理学的支持

基本信息

批准号：
1715788
负责人：
Douglas Gies
金额：
$ 107.25万
依托单位：
Georgia State University Research Foundation, Inc.
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-09-01 至 2021-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1715788&HistoricalAwards=false
关键词：
Support Astrophysics CHARA Array

项目摘要

Georgia State University?s Center for High Angular Resolution Astronomy (CHARA) is an optical/near-infrared interferometric telescope array located on Mount Wilson, California. The CHARA Array has six 1-meter diameter telescopes placed in the shape of a Y, letting astronomers use different lines of telescopes grouped together from the Y to look at different astronomical objects. The number and size of the telescopes, the lengths of these telescope lines, the range of wavelengths covered, and its ability to image targets in astronomy, make CHARA one of the most powerful telescope facilities of its type. Since 2005, when CHARA started operating regularly, the scientists using CHARA have had significant scientific results. These scientists are now opening the CHARA telescope array to astronomers from other institutions. This project serves the national interest by supporting a unique telescope system to promote the study of multiple, different astronomical objects, advancing the progress of astronomy. GSU will develop CHARA-related hands-on experiences for their introductory and advanced undergraduate classes. Located on Mount Wilson, the Exhibit Hall telling the story of CHARA?s operation and successes will also be updated for the public.The CHARA group publications include the first direct images of a single, main-sequence star (Altair), starspots on a giant star (Gamma And), an interacting binary (Beta Lyr), and the expanding fireball of a nova (Nova Del 2013). Among many current applications, CHARA instruments measure stellar angular diameters, stellar shapes, map surface features, detect circumstellar disks and envelopes, and resolve binary stars to determine stellar masses and probe different stages of the evolution of interacting systems. With the introduction of adaptive optics at each of the six telescopes, CHARA Array observations will extend to protoplanetary disks around young stars, binary star systems (including novae, symbiotic stars, and microquasars), as well as the accretion disks in some active galactic nuclei. Each of these applications can be done with both high spectral and high spatial resolution.

佐治亚州立大学高空分辨率天文学中心（CHARA）是位于加利福尼亚州威尔逊山的光学/近红外干涉望远镜阵列。 Chara阵列具有六个1米直径的望远镜，以y的形状放置，让天文学家使用从Y组合在一起的不同望远镜来查看不同的天文学物体。望远镜的数量和大小，这些望远镜线的长度，覆盖的波长范围以及其在天文学中成像目标的能力，使Chara成为其类型的最强大的望远镜设施之一。自2005年Chara开始定期运作以来，使用Chara的科学家取得了可观的科学成果。这些科学家现在正在向其他机构的天文学家开放Chara望远镜阵列。该项目通过支持独特的望远镜系统来促进多种不同天文学对象的研究，从而促进天文学的进步来促进国家利益。 GSU将为他们的入门和高级本科课程开发与Chara相关的动手经验。展览馆位于威尔逊山（Mount Wilson）上，讲述了Chara的操作和成功的故事。在许多当前应用中，Chara Instruments测量了恒星角直径，恒星形状，地图表面特征，检测偶尔磁盘和信封，并解决二进制恒星以确定相互作用系统演化的恒星质量和探测不同阶段。随着在六个望远镜中的每个望远镜中引入自适应光学，Chara阵列观察结果将扩展到围绕年轻恒星，二进制恒星系统（包括Novae，Symbiotic Stars和Microquasars）以及某些活跃的半乳乳核中的吸积盘。这些应用都可以通过高光谱和高空间分辨率来完成。

项目成果

期刊论文数量（65）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Precise calibration of the dependence of surface brightness–colour relations on colour and class for late-type stars

精确校准晚型恒星表面亮度和颜色关系对颜色和等级的依赖性

DOI：
10.1051/0004-6361/202038012
发表时间：
2020
期刊：
Astronomy & Astrophysics
影响因子：
6.5
作者：
Salsi, A.;Nardetto, N.;Mourard, D.;Creevey, O.;Huber, D.;White, T. R.;Hocdé, V.;Morand, F.;Tallon-Bosc, I.;Farrington, C. D.
通讯作者：
Farrington, C. D.

Taking the Measure of Massive Stars and their Environments with the CHARA Array Long-baseline Interferometer

使用 CHARA 阵列长基线干涉仪测量大质量恒星及其环境

DOI：
10.1017/s1743921317002393
发表时间：
2016
期刊：
Proceedings of the International Astronomical Union
影响因子：
0
作者：
Gies, Douglas R.
通讯作者：
Gies, Douglas R.

Fundamental stellar parameters of benchmark stars from CHARA interferometry: I. Metal-poor stars

CHARA 干涉测量基准恒星的基本恒星参数：I. 贫金属恒星

DOI：
10.1051/0004-6361/202037590
发表时间：
2020
期刊：
Astronomy & Astrophysics
影响因子：
6.5
作者：
Karovicova, I.;White, T. R.;Nordlander, T.;Casagrande, L.;Ireland, M.;Huber, D.;Jofré, P.
通讯作者：
Jofré, P.

Influence of the input-stage architecture on the in-laboratory test of a mid-infrared interferometer: application to the ALOHA up-conversion interferometer in the L band

输入级架构对中红外干涉仪实验室测试的影响：在 L 波段 ALOHA 上转换干涉仪中的应用

DOI：
10.1093/mnras/staa3283
发表时间：
2020
期刊：
Monthly Notices of the Royal Astronomical Society
影响因子：
4.8
作者：
Magri, Julie;Lehmann, Lucien;Grossard, Ludovic;Delage, Laurent;Reynaud, François;Chauvet, Mathieu;Bassignot, Florent;Krawczyk, Rodolphe;Le Duigou, Jean-Michel
通讯作者：
Le Duigou, Jean-Michel

MIRC-X: A Highly Sensitive Six-telescope Interferometric Imager at the CHARA Array