VOSA. Help and Documentation

Version 7.0, July 2021

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
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
 
Appendixes
. Excess calculation
. Total flux calculation
. VOphot quality info

Single object search

In the case that you only want to work with a single object (or you just want to test how VOSA works) you don't need to build a input file.

You only need to specify the RA and DEC (in decimal degrees) of your objects. The object name and description are optional (if you leave any of them blank VOSA will fill them using the information in the other fields).

With those coordinates VOSA builds a very simple input file that is saved in your Default folder and you can then work with it, use VO catalogues to find out information or photometry for that object and then try to fit the observed SED with theoretical models.

Example

You only need to specify the RA and DEC (in decimal degrees) of your objects. The object name and description are optional (if you leave any of them blank VOSA will fill them using the information in the other fields).

With this information VOSA will make a very simple "VOSA input file" and it will be loaded automatically.

From then on, you will work with this file as with any other vosa file.

Just remember that the only information that we have for this object now is its coordinates. You will need, at least, to search for photometric data in VO catalogues using the "VO Phot." tab.