Page History
...
The data published in the VO can also be accessed using a web browser at https://vo.astron.nl. This web interface provides a page on which all the collections present in the registry are listed, including the published LoTSS DR2 data sets:
| Service name | Service Description | Type | Link to column descriptions |
|---|---|---|---|
LoTSS-DR2 Gaussian catalog cone search | info | ||
| LoTSS-DR2 Source catalog cone search | |||
| LoTSS-DR2 mosaics |
Selecting a data collection allows the user to perform a cone search through a webform (Fig. 40). The result is either a source or Gaussian list, or a table of data products of that given class overlapping a given pointing. The size of the continuum images as well as the cubes extend beyond the 10% primary beam level for cleaning the secondary lobes of bright offset sources. To ensure that the search is done in the area of maximum sensitivity the search is performed on a maxim radius of 0.75 degrees from the center (this represents the average value of where the sensitivity drops). This value can be modified using the Max distance from center. A different output with respect to the default can be customized using More output fields selection button.
...
Table names to be used in the ADQL query.
Table name | obscore type | obscore subtype |
|---|---|---|
gauss_cone | table (not an obscore type) | |
src_cone | table (not an obscore type) | |
lotss_dr2_mosaic | image | total intensity map |
Access via TOPCAT
The Apertif DR1 data collection tables can be accessed using TOPCAT, an interactive graphical viewer and editor for tabular data. The data can be sent from vo.astron.nl to TOPCAT using one of the two protocols: SAMP or TAP. The two subsections below provide a description on how to access the tabular data using either SAMP(link to Send via SAMP subsection) or TAP(link to VO Table Access Protocol (TAP) subsection).
...
Overview
Content Tools
Tasks