AVO prototype and CDS tools

Presentation on theme: "AVO prototype and CDS tools"— Presentation transcript:

1 AVO prototype and CDS tools
高丹 LAMOST

2 内容 天文物理方法介绍和天文需求 总述并简单介绍Simbad、VizieR查询工具 从功能角度介绍AVO prototype 总结&思考

3 AVO Science AVO has produced REAL science tools, which can be (and are!) used for astronomical research: AVO prototype is a very flexible toolset with plug-ins which allows easy access to images, spectra, and catalogues ASTROGRID’s workflow builder and MySpace are at cutting edge of VO development Interaction between astronomers and developers has been extremely good and beneficial to everybody

4 AVO partner ESO, Germany
Space Telescope - European Coordinating Facility (ST-ECF), Germany The ASTROGRID (UK) Consortium CDS, France CNRS - Delegation Paris A (CNRSDR01-Terapix), France The Victoria University of Manchester (UMAN-Jodrell Bank), England

5 CDS

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10 The 3 main services SIMBAD VizieR Aladin

11 Aladin for AVO prototype
Image re-sampling(filter) （预处理、分析） Query by list –SIMBAD, VizieR （查询） Cross-match tool （预处理、分析） VO-plot （分析） Plugin for Specview （光谱处理） and VOSpec （光谱分析） Dist （天体测量）

12 两个示例 Filters are an elaborated feature in Aladin allowing one to customize the display of catalogue planes in Aladin. $[PHOT_JHN_J]<14 { draw green square } cross-match tool Vo-plot

13 Specview 显示（Displaying） 测量（measuring） 处理（processing） 拟合（fitting）

14 Vo-spec Get spectra from SSA servers Display and superimpose spectra
Automatic unit conversion Multi-wavelength analysis Polynomial/Black body/Gaussian fitting

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17 Estimation of the proper
To measure the distance between two epoch positions: use the distance button and drag a double arrow with the left button of your mouse between the 2 points. Band E: Band J: Band N: Estimation of the proper motion of ** WNO7: ‘’/( ) =0.9‘’/an N.B.: if you do not see the distance indication, please refer to the FAQ

18 Optional Tools Photometric redshift determination
Principal Component Analysis (PCA) Catalog Creation Model/Data visualisation

19 总结&思考 功能强大 用户界面不友好 天文学家有什么需求？ 如何赢得天文学家的认可？ 我们能做什么？