Enabling Milliarcsecond Astrophysics: Open access for the CHARA Array

启用毫角秒天体物理学：CHARA 阵列的开放访问

• 批准号: 1636624
• 负责人: Theo ten Brummelaar
• 金额: $ 390.23万
• 依托单位: Georgia State University Research Foundation, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1636624&HistoricalAwards=false
• 关键词: Enabling; Milliarcsecond; Astrophysics; Open; access

This program will provide observing time to the astronomical community using the Georgia State University Center for High Angular Resolution Astronomy (CHARA), as well as open access to archival CHARA data. Broader impacts of the work involve training of undergraduate and graduate students in instrumentation development, including a focused research opportunity for Georgia State undergraduates to participate in CHARA research. This proposal will also help fund upgrades to the CHARA Exhibit Hall on Mt. Wilson, which illustrates interferometry to the general public via displays of historical equipment and explanations of how the current system works. CHARA operates an optical/near infrared (OIR) interferometric array on Mount Wilson, CA. The CHARA Array has six 1-m aperture telescopes in a Y configuration providing 15 baselines from 33 to 331 meters and ten independent closure phase triangles. With the number and size of its telescopes, its imaging capabilities, the length of its baselines, the range of wavelength regimes and spectral resolutions covered by its beam combiners, the CHARA Array is a uniquely powerful facility for milliarcsecond imaging. This proposal defines a path to move optical interferometry from a rather small and experimental group to a broader user community.

该计划将使用佐治亚州立大学高角度分辨率天文学（CHARA）以及公开访问档案CHARA数据的观察时间为天文学社区提供时间。这项工作的更广泛的影响涉及对仪器开发的本科和研究生的培训，其中包括佐治亚州本科生参加Chara研究的重点研究机会。 该提案还将有助于资助威尔逊山的Chara展览厅的升级，该升级通过展示历史设备的展示以及对当前系统的工作方式的解释来说明对公众的干涉法。 Chara在加利福尼亚州威尔逊山上操作一个光学/近红外（OIR）干涉阵列。 Chara阵列在Y配置中具有六个1-m的光圈望远镜，可提供33至331米的15个基线，十个独立的闭合相三角形。随着其望远镜的数量和大小，其成像功能，其基线的长度，波束组合仪涵盖的波长和光谱分辨率的范围，Chara Array是Milliarcsecond Imaging的独特功能。该建议定义了将光学干涉仪从相当小的实验组移动到更广泛的用户社区的途径。

项目成果

Optical interferometry and Gaia measurement uncertainties reveal the physics of asymptotic giant branch stars

• DOI: 10.1051/0004-6361/202037832
• 发表时间: 2020-06
• 期刊: arXiv: Solar and Stellar Astrophysics
• 作者: A. Chiavassa;K. Kravchenko;F. Millour;G. Schaefer;M. Schultheis;B. Freytag;O. Creevey;V. Hocd'e

Directly Determined Properties of HD 97658 from Interferometric Observations

• DOI: 10.3847/1538-3881/ac141a
• 发表时间: 2021-09-01
• 期刊: ASTRONOMICAL JOURNAL
• 影响因子: 5.3
• 作者: Ellis, Tyler G.;Boyajian, Tabetha;Farrington, Christopher D.
• 通讯作者: Farrington, Christopher D.

Benchmarking Substellar Evolutionary Models Using New Age Estimates for HD 4747 B and HD 19467 B

• DOI: 10.3847/1538-4357/aafe01
• 发表时间: 2019-01
• 期刊: The Astrophysical Journal
• 作者: C. Wood;T. Boyajian;K. V. Braun;J. Brewer;J. Crepp;Gail Schaefer;A. Adams;Timothy R. White

Inspecting the Cepheid parallax of pulsation using Gaia EDR3 parallaxes: Projection factor and period-luminosity and period-radius relations

使用 Gaia EDR3 视差检查造父变星脉动视差：投影因子以及周期-光度和周期-半径关系

• DOI: 10.1051/0004-6361/202141680
• 发表时间: 2021
• 期刊: Astronomy & Astrophysics
• 影响因子: 6.5
• 作者: Trahin, B.;Breuval, L.;Kervella, P.;Mérand, A.;Nardetto, N.;Gallenne, A.;Hocdé, V.;Gieren, W.
• 通讯作者: Gieren, W.

Benchmarking the fundamental parameters of Ap stars with optical long-baseline interferometric measurements

• DOI: 10.1051/0004-6361/202038753
• 发表时间: 2020-10
• 期刊: Astronomy & Astrophysics
• 影响因子: 6.5
• 作者: K. Perraut;M. Cunha;Anna Romanovskaya;D. Shulyak;T. Ryabchikova;V. Hocdé;N. Nardetto;D. Mourard