Required file format
Required format
The uploaded file must contain a line for each photometric point.
Each line must contain 8 columns:
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| object | RA | DEC | dis | Av | filter | flux | error |
| ... | ... | ... | ... | ...| ... | ... | ... |
| ... | ... | ... | ... | ...| ... | ... | ... |
- 1: a one word text label, without spaces or special characters, that describes the object name.
- 2: the RA, in deg, corresponding to the object in J2000 equinox (1).
- 3: the DEC, in deg, corresponding to the object in J2000 equinox (1).
- 4: the distance to the object in parsec (2).
- 5: the AV parameter defining the extinction. (3).
- 6: a label corresponding to the name of the filter. It must be in the list of available filters
- 7: the flux in erg/cm2/s/A units or magnitude.
- 8: the observed error in the flux (in erg/cm2/s/A) or magnitude.
- The only mandatory value is the object name (you can use the real one or some label of your like). The other columns can be writen as '---' (please, don't let them blank) if you don't know the right value or don't want to specify it.
- (1) Coordinates (as accurate as possible) are necessary to obtain photometry from VO catalogues.
If unknown, you can write RA and DEC as '---'. In that case, if you have given the right object name in the first column, you can use the Coordinates section to find the coordinates for the object using Sesame.
- (2) The distance to the object is necessary to compute the Bolometric Luminosity.
If you don't know the distance, write it as '---' and an assumed distance of 10pc will be used in the calculations.
- (3) The value of visual extinction and the Indebetouw et al. (2005, ApJ 619, 931) are used to deredden the user and VO photometry in a standard way. No reddening correction is applied if Av is set to '---' or zero.
- If your input file containes magnitudes instead of fluxes, please, be careful to mark the corresponding checkbox when uploading the file. If not, we will understand the values as fluxes (in erg/cm2/s/A)
Please, check in advance that your file conforms to these requirements. Next, after uploading it, you can try to see the analyzed contents of the file in "Upload files → Show". If what you see does not correspond to what you expect it will probably mean that there is something wrong in your data file. Delete it from the system, try to correct the mistake and upload it again.
Examples of valid files
1.- A complete file
Obj1 19.5 23.2 80 1.2 DENIS_I 5.374863e-16 4.950433e-19
Obj1 19.5 23.2 80 1.2 Omega2000_Ks 2.121015e-16 1.953527e-19
Obj1 19.5 23.2 80 1.2 MIPS_M1 6.861148e-15 1.390352e-16
Obj2 18.1 -13.2 80 1.2 INGRID_H 1.082924e-14 2.194453e-16
Obj2 18.1 -13.2 80 1.2 2MASS_J 2.483698e-17 2.287603e-19
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In this file we have two different objects, their positions (RA and DEC), the distance to the objects, the AV parameter and some values of the photometry (three for Obj1 and two for Obj2).
2.-Only object names
BD+292091 --- --- --- --- --- --- ---
HD000693 --- --- --- --- --- --- ---
HD001835 --- --- --- --- --- --- ---
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This file is also correct, and although we have little information in it, VOSA can try to find some more data about these objects so that the analysis can be performed. Assuming that the names for the three objects are the real ones, we can try to find these objects coordinates. Then, using these coordinates, some observed photometry could be retrieved from VO catalogues, and so on.
2.-A mixed case
BD+292091 --- --- --- --- 2MASS_J 7.14724167946E-14 5.14601400921E-16
BD+292091 --- --- --- --- 2MASS_H 3.69142119547E-14 2.3625095651E-16
Obj2 18.1 -13.2 80 1.2 INGRID_H 1.082924e-14 2.194453e-16
Obj2 18.1 -13.2 80 1.2 2MASS_J 2.483698e-17 2.287603e-19
HD000693 2.8160722 -15.4679775 --- --- --- --- ---
HD001835 --- --- --- 1.4 --- --- ---
Obj3 19.5 23.2 80 1.2 Omega2000_Ks 2.121015e-16 1.953527e-19
Obj3 19.5 23.2 80 1.2 MIPS_M1 6.861148e-15 1.390352e-16
HD003567 --- --- --- --- --- ---
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You can combine in the same file objects with different type of information. Just keep in mind that each line must have 8 columns and, when you want to leave a data blank, you must write it as '---'.
And remember that the different columns can be separated by blanks or tabs or any combination of them. For instance, this next example would be completely equivalent to the previous one:
BD+292091 --- --- --- --- 2MASS_J 7.14724167946E-14 5.14601400921E-16
BD+292091 --- --- --- --- 2MASS_H 3.69142119547E-14 2.3625095651E-16
Obj2 18.1 -13.2 80 1.2 INGRID_H 1.082924e-14 2.194453e-16
Obj2 18.1 -13.2 80 1.2 2MASS_J 2.483698e-17 2.287603e-19
HD000693 2.8160722 -15.4679775 --- --- --- --- ---
HD001835 --- --- --- 1.4 --- --- ---
Obj3 19.5 23.2 80 1.2 Omega2000_Ks 2.121015e-16 1.953527e-19
Obj3 19.5 23.2 80 1.2 MIPS_M1 6.861148e-15 1.390352e-16
HD003567 --- --- --- --- --- --- ---
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