Leader - Christian Hummel
European Southern Observatory
Phone: +49 89 3200 6151
Fax: +49 89 3200 4868
Among the tasks of the working group are the coordination of the work on interferometric calibrator data bases carried out within individual interferometer projects, and the overview of resources and tools for observers looking for suitable calibrators.
Calibrators are rarely unresolved, and if bright ones are needed, they tend to be big enough to require good estimates of their angular diameter. These are extracted from their photometry, assuming they are described by a single photosphere of a non-rotating star.
Thus, we have two issues in this business: first, to define suitable selection rules based on astrophysical insight, and second, to share data on calibrators especially if they turn out to be unsuitable for any reason.
|Running projects||Responsible||Status||Last update/iteration||Deadline/comments|
|External data base format||All||open||2005-04-26||Format proposal by W. Jaffe|
|Revival of bad calibrator page||CHU||closed||2009-04-24||See Merand et al. 2007, ApJ 664, 1093, for another bad calibrator candidate|
|Presentation in Marseille||CHU||closed||2010-05-20||2008-06-30|
Here we compile a list of resources to aid in the selection of calibrators. Clicking a link will open the resource in a new window.
Papers related to the topic
Ongoing projects to improve the data bases
Areas of concern, comments, issues...