AVO 科学范例学习

国家天文台 王晓倩2005 年 3 月 7 日

内容

AVO Demo 2005 - Towards the EuroVO

• Summary

This demo will highlight how powerful distributed workflow processes driving data flows through sophisticated applications will enable astronomers to investigate star formation histories in rich clusters of galaxies. The demo will also allow the invesitgation of the late stages of stellar evolution, via large data queries.

• Science Scenarios

There will be a focus on delivery against two science topics:

Galaxies Scenario

Stellar Scenario

Installation

1. If the system requirements are met click on automatic installation to start up the InstallAnywhere Java Applet

2. If the automatic procedure does not work then download AVO.jar and drop it into the installation directory of your choice.

ALADIN User’s Manual

Aladin Science Cases

• The Aladin sky atlas tutorial

a review of the basic functionnalities and of the tool philosophy.

• Viewing the Velocity of the SMC

How to use filters in Aladin ?

• Finding red objects in the Pelican nebula IC5070

How to use VOPlot in Aladin ?

• Visualizing the proper motions of the binary star **WNO7

The time dimension in Aladin

Galaxies Science Case

• Background The prime case selected after analysis of the SWG

suggestions is the 'Star Formation Histories in Galaxies' case.

This involves retrieving multiwavelength datasets to enable galaxy spectral energy distributions (SEDs) to be generated. These are then compared against stellar spectral evolution codes, to enable information to be derived on galaxy star formation histories.

infrostructure

Descriptive Workflow