e-Science Applications in Astronomy: Astrometry Using a Virtual Observatory

e-Science Applications in Astronomy: Astrometry Using a Virtual Observatory

We used Virtual Observatory (VO) tools to calculate proper motions in the bipolar outflow object, HH 896. One good example of an e-science application is the VO. The primary goal of the VO is to collect observed data from many telescopes and instruments and to construct a software system for managing heterogeneous data. The other is to allow transparency and to provide the ability to access data distributed throughout the world. Astrometry-oriented projects are currently developed and have been greatly enriched because of the prototype of a VO system. Astrometry is essential to calculate positional variations by using multiple observations of the same object. We used an Aladin sky atlas system of the Strasbourg astronomical Data Center (CDS) for retrieving data. The Aladin sky atlas system is the best candidate of a VO architecture system and can make searches for various kinds of data available. The bipolar outflow objects in star-forming regions are useful targets for astrometric studies. We obtained two images of HH 896 and calculated the proper motions of the bow-shocks observed in the bipolar outflow. Based on our observation and the proper motion calculation, we confirmed the energy source of the bipolar outflow of HH 896.

We used Virtual Observatory (VO) tools to calculate proper motions in the bipolar outflow object, HH 896. One good example of an e-science application is the VO. The primary goal of the VO is to collect observed data from many telescopes and instruments and to construct a software system for managing heterogeneous data. The other is to allow transparency and to provide the ability to access data distributed throughout the world. Astrometry-oriented projects are currently developed and have been greatly enriched because of the prototype of a VO system. Astrometry is essential to calculate positional variations by using multiple observations of the same object. We used an Aladin sky atlas system of the Strasbourg astronomical Data Center (CDS) for retrieving data. The Aladin sky atlas system is the best candidate of a VO architecture system and can make searches for various kinds of data available. The bipolar outflow objects in star-forming regions are useful targets for astrometric studies. We obtained two images of HH 896 and calculated the proper motions of the bow-shocks observed in the bipolar outflow. Based on our observation and the proper motion calculation, we confirmed the energy source of the bipolar outflow of HH 896.