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Tag: astronomy

Blob D5.3v2 Calculation of Luminosity Profiles for a Samp...

Created: 2013-01-05 16:45:48 | Last updated: 2013-01-05 16:48:45

Credits: User Jose Enrique Ruiz

License: Creative Commons Attribution-Share Alike 3.0 Unported License

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 luminosi...

File type: Adobe PDF

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Pack Luminosity Profiles Research Object


Created: 2013-01-05 16:34:46 | Last updated: 2013-01-05 16:58:18

In order to understand the evolution of galaxies, detailed analysis of images plays a key role. During the last years telescopes working at different wavelengths have been imaging the whole sky. One example of this is the Sloan Digital Sky Survey. The generated images provides a wealth of information, publicly available, and hence allowing them to be used by any interested group in the study of their own samples of objects or generation of new samples. The two main processing of the images ge...

7 items in this pack

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Workflow Environment (2)

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From a previously selected cube of galaxies residing in a remote database, we provide extragalactic environment parameters for all galaxies sample. This workflow takes as input the path of the tabular *.pckl Python pickle dataset created in the previous workflow, as well as the database connection settings and several criteria on how to filter the potential companions of the target galaxies. It provides a file with the SDSS identifiers of each target galaxy of the sample, environmental estim...

Created: 2013-01-04 | Last updated: 2013-01-14

Credits: User Juandesant User Jsm

Workflow Intialize Sample (2)

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This workflow saves a tabular *.pckl Python pickle dataset in the local file system, containing values calculated on physical parameters associated to potential companions of a sample of target galaxies. These original physical parameters are extracted from a postgreSQL database, containing information of all galaxies covered by the SDSS spectroscopic survey. The workflow first access the external database located in the AMIGA server and selects the target galaxies from the sample (those havi...

Created: 2013-01-04 | Last updated: 2013-01-05

Credits: User Juandesant User Jsm

Workflow Detect ellipse failures and get votable wi... (1)

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It detects if ellipse has failed by checking if the resulting data file exists. It adds a column (validellipse) that contains 1 if ellipse didn't fail and 0 if ellipse failed. It returns a votable that contains all the data with the new column and a votable that contains only the rows where ellipse didn't failed. It uses astrotaverna plugin (http://wf4ever.github.com/astrotaverna/).

Created: 2012-09-07

Credits: User Julian Garrido

Workflow Get completion function V / Vm using the a... (1)

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Get completion function V / Vm using the apparent magnitude list of a set of galaxies

Created: 2012-09-03 | Last updated: 2012-09-03

Credits: User Julian Garrido

Workflow Cocatenates several VOTables into one (3)

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Snippet showing how to use AstroTaverna tool for concatenating several VOTables. The input is four VOTables with the same number of columns. The result if using sample values provided will be a four times vertically duplicated VOTable.

Created: 2012-08-30 | Last updated: 2013-04-22

Credits: User Julian Garrido

Workflow Build plots from galfit and ellipse results (2)

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

Created: 2012-08-30 | Last updated: 2012-09-07

Credits: User Julian Garrido

Workflow Add columns to a votable resulting from ex... (1)

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Addcolumns that are needed to run galfit and ellipse. it requires columns coming from sextractor and the astrotaverna plugin.

Created: 2012-08-30

Credits: User Julian Garrido

Workflow Create votable from different galfit param... (2)

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The workflow creates a votable from the results provided by galfit. It returns this table and an aditional table that is joined to the input table. It requires a votable that contains a column with the file name resulting from running galfit and such files must be accesible from taverna. 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/). The galfit files may come from adjusting 'disk, bulb, ba...

Created: 2012-08-21 | Last updated: 2012-09-07

Credits: User Julian Garrido

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