VOSA. Help and Documentation

Version 7.5, July 2022

1. Introduction
2. Input files
2.1. Upload files
2.2. VOSA file format
2.3. Single object
2.4. Manage files
2.5. Archiving
2.6. Filters
3. Objects
3.1. Coordinates
3.2. Distances
3.3. Extinction
4. Build SEDs
4.1. VO photometry
4.2. SED
4.3. Excess
5. Analysis
5.1. Model Fit
5.2. Bayes analysis
5.3. Template Fit
5.4. Templates Bayes
5.5. Binary Fit
5.6. HR diagram
5.7. Upper Limits
5.8. Statistics
6. Save results
6.1. Download
6.2. SAMP
6.3. References
6.4. Log file
6.5. Plots
7. VOSA Architecture
8. Phys. Constants
9. FAQ
10. Use Case
11. Quality
11.1. Stellar libraries
11.2. VO photometry
11.3. Binary Fit Quality
12. Credits
12.1. VOSA
12.2. Th. Spectra
12.3. Templates
12.4. Isochrones
12.5. VO Photometry
12.6. Coordinates
12.7. Distances
12.8. Dereddening
12.9. Extinction
13. Helpdesk
14. About
. Excess calculation
. Total flux calculation
. VOphot quality info

Input files

There are two main ways to start working with VOSA:

  • Uploading a VOSA-format input file with your data (or selecting a previously uploaded one).

    VOSA is mainly designed to work with several objects at the same time so that the same or equivalent operations are performed on all the objects. The information about these objects (and optionally, user photometry data for them) must be uploaded by the user in an input ascii file with an special format.

    Please, read carefully how to write an input file in VOSA-format.

  • Making a simple search for a single object giving its coordinates.

    Using these coordinates VOSA builds an input file and uploads it automatically to the application.

And, at any time, you can select a previously uploaded file and continue with it in the same point where you left the work. Below you can see details about these three options.