Pack: Luminosity Profiles Research Object

Description:

This workflow creates galfit configuration files using data from a votable, it runs galfit, its results is added to the votable, it creates new config files for galfit using the previous results, it runs galfit a second time considering galaxies that have and do not have bars in order to adjust the objective parameters and it finally includes the results into the votable. It requires the specification of the columns that contain file names (these files should be accesibles from taverna). If the configuration files contain references to other files, they must be accesible from taverna. Configuration files are created (one for every row in the votable) using a template whose keys are replaced by data from a votable. Keys must appear also in the vocabulary file and match column names in the votable. It uses astrotaverna plugin (http://wf4ever.github.com/astrotaverna/) and it has a dependency on stil library (http://www.star.bris.ac.uk/~mbt/stil/).

Description:

This workflow creates configuration files for sextractor, it runs sextractor using this configuration files, it adds sextractor results to the input votable and adds new calculated columns. This task requires a votable as input, a template, a vocabulary and the specification of the column names that contain some required files (configuration files, image files, ...). These files must be accesible from taverna. Sextractor is called by an bash script as 'sex'. Every row in the votable cotains information for an object i.e a galaxy. The subworkflows have dependencies on astrotaverna plugin (http://wf4ever.github.com/astrotaverna/) and stil library (http://www.star.bris.ac.uk/~mbt/stil/).

Description:

Build plots from galfit and ellipse results (http://www.myexperiment.org/workflows/3068.html, http://www.myexperiment.org/workflows/3052.html).

Description:

This workflow calculates the ellipses that better match a galaxy by doing two iterations. In the first one the center and the outer ellipse are aproximated because there might be bars that affect to the inner ellipses. In the second one, files with the ellipse data are built. It creates ellipse scripts using data from a votable, it runs ellipse, its results are added to the votable, it creates new scripts for ellipse using the previous results, it runs ellipse a second time and it finally includes the results into the votable. It requires the specification of the columns that contain file names (these files should be accesibles from taverna). Scripts are created (one for every row in the votable) using a template whose keys are replaced by data from a votable. Keys must appear also in the vocabulary file and match column names in the votable. It uses, pyraf (ellipse task), astrotaverna plugin (http://wf4ever.github.com/astrotaverna/).

Description:

This document describes the "Luminosity Profiles" Research Object

Description:

This document describes the development of the second Golden Exemplar proposed in Work Package 5: Workflow Astronomy Preservation, and provides discussion about user-driven issues risen in this process and related with general objectives of the Wf4Ever project. The document pertains to the assembly of two Research Objects (RO) packing the digital experiment undertaken for the extraction of a sample of galaxies based on environmental criteria and the calculation of luminosity profiles in several bands for each of the galaxies. The main purpose of deliverable D5.3v2 is to produce the workflows and ROs for the second Golden Exemplar in order to provide feedback based on a user experience for the models and technologies developed in the Wf4Ever project. The workflows and ROs developed may be accessed publicly in the MyExperiment  portal, where the two ROs produced have been uploaded as MyExperiment Packs, as well as in the RODL Wf4Ever Sandbox.

Description:

This workflow joins two main nested workflows:

- "Extract SDSS field information and PSF" workflow, which gathers information from SDSS VO service and from the header image in several VOtable. It also generates the psf files.

- "Joining VOtables with information to execute Sextractor, Galfit and Ellipse" workflow, which joins the VOtables generated by the previous workflow to get only one VOtable with all the information