Simbad and Astroquery returns same Gaia IDs for objects having different IDs

[A-Vani]

Code:

Simbad.add_votable_fields('id(Gaia DR3)')
Simbad.add_votable_fields('id(Gaia DR2)')

 Simbad.query_object("2MASS*")

Astroquery returns the same Gaia IDs for DR2 and DR3, even when Simbad shows that it has different IDs.

[keflavich]

@A-Vani I can't reproduce your issue exactly. Could you give more details, and perhaps show a more specific query?

If I try what you showed, I get an error message:

 Simbad.add_votable_fields('id(Gaia DR3)')
Traceback (most recent call last):
  Cell In[180], line 1
    Simbad.add_votable_fields('id(Gaia DR3)')
  File ~/repos/astroquery/astroquery/simbad/core.py:467 in add_votable_fields
    _catch_deprecated_fields_with_arguments(votable_field)
  File ~/repos/astroquery/astroquery/simbad/utils.py:35 in _catch_deprecated_fields_with_arguments
    raise ValueError("Catalog Ids are no longer supported as an output option. "
ValueError: Catalog Ids are no longer supported as an output option. A good replacement can be `~astroquery.simbad.SimbadClass.query_cat`

so it may be that what you've attempted is a deprecated approach as of #2954

[A-Vani]

I am using astroquery version 0.4.7 with python 3.10.9

For example, this is a minimum working example:

Simbad.add_votable_fields('id(CNS5)')
Simbad.add_votable_fields('id(Gaia DR3)')
Simbad.add_votable_fields('id(Gaia DR2)')
result_table = Simbad.query_object("cns5 1013", wildcard=True)
print(result_table)

This gives me the following entry:

[keflavich]

As far as I can tell, we stopped supporting the catalog ID votable fields as of about 7 months ago. You should update your astroquery version. My guess is that problems like what you've identified were part of the motivation, though I am not sure of this.

@ManonMarchand is there a way we could support queries like this, though? Perhaps the votable field to add is a different one?

[ManonMarchand]

Yes, it was removed as this never worked for years and no one complained. Would:

from astroquery.simbad import Simbad
Simbad.query_objectids("cns5 1013")

<Table length=7>
             id            
           object          
---------------------------
                  CNS5 1013
Gaia DR3 495091536028866560
              LP   31-302 A
               ** LDS 1589B
               ** LEP  123A
           WDS J04058+7117B
Gaia DR2 495091536024631040

that you can also filter with criteria="id like 'Gaia%'" to get:

from astroquery.simbad import Simbad
Simbad.query_objectids("cns5 1013", criteria="ident.id like 'Gaia%'")

<Table length=2>
             id            
           object          
---------------------------
Gaia DR3 495091536028866560
Gaia DR2 495091536024631040

fit your need?

Otherwise I can start thinking about how to make it work ^^

[A-Vani]

Yes, that should suffice! Thanks a ton!