SimbadClass¶

class astroquery.simbad.SimbadClass[source]¶

Bases: SimbadBaseQuery

The class for querying the Simbad web service.

Note that SIMBAD suggests submitting no more than 6 queries per second; if you submit more than that, your IP may be temporarily blacklisted (http://simbad.u-strasbg.fr/simbad/sim-help?Page=sim-url)

Attributes Summary

`ROW_LIMIT`
`SIMBAD_URL`
`TIMEOUT`
`WILDCARDS`

Methods Summary

`add_votable_fields`(*args)	Sets fields to be fetched in the VOTable.
`get_field_description`(field_name)	Displays a description of the VOTable field.
`get_votable_fields`()	Display votable fields
`list_votable_fields`()	Lists all the fields that can be fetched for a VOTable.
`list_wildcards`()	Displays the available wildcards that may be used in Simbad queries and their usage.
`query_bibcode`(bibcode[, wildcard, verbose, ...])	Queries the references corresponding to a given bibcode, and returns the results in a `Table`.
`query_bibcode_async`(bibcode[, wildcard, ...])	Serves the same function as `query_bibcode`, but only collects the response from the Simbad server and returns.
`query_bibobj`(bibcode[, verbose, ...])	Query all the objects that are contained in the article specified by the bibcode, and return results as a `Table`.
`query_bibobj_async`(bibcode[, cache, ...])	Serves the same function as `query_bibobj`, but only collects the response from the Simbad server and returns.
`query_catalog`(catalog[, verbose, cache, ...])	Queries a whole catalog.
`query_catalog_async`(catalog[, cache, ...])	Serves the same function as `query_catalog`, but only collects the response from the Simbad server and returns.
`query_criteria`(args, *kwargs)	Query SIMBAD based on any criteria.
`query_criteria_async`(args, *kwargs)	Query SIMBAD based on any criteria.
`query_object`(object_name[, wildcard, ...])	Queries Simbad for the given object and returns the result as a `Table`.
`query_object_async`(object_name[, wildcard, ...])	Serves the same function as `query_object`, but only collects the response from the Simbad server and returns.
`query_objectids`(object_name[, verbose, ...])	Query Simbad with an object name, and return a table of all names associated with that object in a `Table`.
`query_objectids_async`(object_name[, cache, ...])	Serves the same function as `query_objectids`, but only collects the response from the Simbad server and returns.
`query_objects`(object_names[, wildcard, ...])	Queries Simbad for the specified list of objects and returns the results as a `Table`.
`query_objects_async`(object_names[, ...])	Same as `query_objects`, but only collects the response from the Simbad server and returns.
`query_region`(args, *kwargs)	Queries the service and returns a table object.
`query_region_async`(coordinates[, radius, ...])	Serves the same function as `query_region`, but only collects the response from the Simbad server and returns.
`remove_votable_fields`(args, *kwargs)	Removes the specified field names from `SimbadClass._VOTABLE_FIELDS`
`reset_votable_fields`()	resets VOTABLE_FIELDS to defaults

Attributes Documentation

ROW_LIMIT = 0¶

SIMBAD_URL = 'http://simbad.u-strasbg.fr/simbad/sim-script'¶

TIMEOUT = 60¶

WILDCARDS = {'*': 'Any string of characters (including an empty one)', '?': 'Any character (exactly one character)', '[^0-9]': 'Any (one) character not in the list.', '[abc]': 'Exactly one character taken in the list. Can also be defined by a range of characters: [A-Z]'}¶

Methods Documentation

add_votable_fields(*args)[source]¶

Sets fields to be fetched in the VOTable. Must be one of those listed by list_votable_fields.

Parameters:

list of field_names

get_field_description(field_name)[source]¶

Displays a description of the VOTable field.

Parameters:

field_namestr: the name of the field to describe. Must be one of those listed by list_votable_fields.

Examples

>>> from astroquery.simbad import Simbad
>>> Simbad.get_field_description('main_id')
main identifier of an astronomical object. It is the same as id(1)
>>> Simbad.get_field_description('bibcodelist(y1-y2)')
number of references. The parameter is optional and limit the count to
the references between the years y1 and y2

get_votable_fields()[source]¶

Display votable fields

Examples

>>> from astroquery.simbad import Simbad
>>> Simbad.get_votable_fields()
['main_id', 'coordinates']

list_votable_fields()[source]¶

Lists all the fields that can be fetched for a VOTable.

Examples

>>> from astroquery.simbad import Simbad
>>> Simbad.list_votable_fields()
--NOTES--...

list_wildcards()[source]¶

Displays the available wildcards that may be used in Simbad queries and their usage.

Examples

>>> from astroquery.simbad import Simbad
>>> Simbad.list_wildcards()
* : Any string of characters (including an empty one)...

[^0-9] : Any (one) character not in the list.

? : Any character (exactly one character)

[abc]Exactly one character taken in the list.: Can also be defined by a range of characters: [A-Z]

query_bibcode(bibcode, wildcard=False, verbose=False, cache=True, get_query_payload=False)[source]¶

Queries the references corresponding to a given bibcode, and returns the results in a Table. Wildcards may be used to specify bibcodes.

Parameters:

bibcodestr: the bibcode of the article
wildcardboolean, optional: When it is set to True it implies that the object is specified with wildcards. Defaults to False.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

tableTable: Query results table

query_bibcode_async(bibcode, wildcard=False, cache=True, get_query_payload=False)[source]¶

Serves the same function as query_bibcode, but only collects the response from the Simbad server and returns.

Parameters:

bibcodestr: the bibcode of the article
wildcardboolean, optional: When it is set to True it implies that the object is specified with wildcards. Defaults to False.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

responserequests.Response: Response of the query from the server.

query_bibobj(bibcode, verbose=False, get_query_payload=False)[source]¶

Query all the objects that are contained in the article specified by the bibcode, and return results as a Table.

Parameters:

bibcodestr: the bibcode of the article
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

tableTable: Query results table

query_bibobj_async(bibcode, cache=True, get_query_payload=False)[source]¶

Serves the same function as query_bibobj, but only collects the response from the Simbad server and returns.

Parameters:

bibcodestr: the bibcode of the article
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

responserequests.Response: Response of the query from the server.

query_catalog(catalog, verbose=False, cache=True, get_query_payload=False)[source]¶

Queries a whole catalog.

Results may be very large -number of rows should be controlled by configuring SimbadClass.ROW_LIMIT.

Parameters:

catalogstr: the name of the catalog.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

tableTable: Query results table

query_catalog_async(catalog, cache=True, get_query_payload=False)[source]¶

Serves the same function as query_catalog, but only collects the response from the Simbad server and returns.

Parameters:

catalogstr: the name of the catalog.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

responserequests.Response: Response of the query from the server.

query_criteria(*args, **kwargs)[source]¶

Query SIMBAD based on any criteria.

Parameters:

args:: String arguments passed directly to SIMBAD’s script (e.g., ‘region(box, GAL, 10.5 -10.5, 0.5d 0.5d)’)
kwargs:: Keyword / value pairs passed to SIMBAD’s script engine (e.g., {‘otype’:’SNR’} will be rendered as otype=SNR)

Returns:

tableTable: Query results table

query_criteria_async(*args, **kwargs)[source]¶

Query SIMBAD based on any criteria.

Parameters:

args:: String arguments passed directly to SIMBAD’s script (e.g., ‘region(box, GAL, 10.5 -10.5, 0.5d 0.5d)’)
kwargs:: Keyword / value pairs passed to SIMBAD’s script engine (e.g., {‘otype’:’SNR’} will be rendered as otype=SNR)
cachebool: Cache the query?

Returns:

responserequests.Response: Response of the query from the server

query_object(object_name, wildcard=False, verbose=False, get_query_payload=False)[source]¶

Queries Simbad for the given object and returns the result as a Table. Object names may also be specified with wildcard. See examples below.

Parameters:

object_namestr: name of object to be queried
wildcardboolean, optional: When it is set to True it implies that the object is specified with wildcards. Defaults to False.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

tableTable: Query results table

query_object_async(object_name, wildcard=False, cache=True, get_query_payload=False)[source]¶

Serves the same function as query_object, but only collects the response from the Simbad server and returns.

Parameters:

object_namestr: name of object to be queried
wildcardboolean, optional: When it is set to True it implies that the object is specified with wildcards. Defaults to False.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

responserequests.Response: Response of the query from the server

query_objectids(object_name, verbose=False, cache=True, get_query_payload=False)[source]¶

Query Simbad with an object name, and return a table of all names associated with that object in a Table.

Parameters:

object_namestr: name of object to be queried
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

tableTable: Query results table

query_objectids_async(object_name, cache=True, get_query_payload=False)[source]¶

Serves the same function as query_objectids, but only collects the response from the Simbad server and returns.

Parameters:

object_namestr: name of object to be queried

Returns:

responserequests.Response: Response of the query from the server.

query_objects(object_names, wildcard=False, verbose=False, get_query_payload=False)[source]¶

Queries Simbad for the specified list of objects and returns the results as a Table. Object names may be specified with wildcards if desired.

Parameters:

object_namessequence of strs: names of objects to be queried
wildcardboolean, optional: When True, the names may have wildcards in them. Defaults to False.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

tableTable: Query results table

query_objects_async(object_names, wildcard=False, cache=True, get_query_payload=False)[source]¶

Same as query_objects, but only collects the response from the Simbad server and returns.

Parameters:

object_namessequence of strs: names of objects to be queried
wildcardboolean, optional: When True, the names may have wildcards in them. Defaults to False.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

responserequests.Response: Response of the query from the server

query_region(*args, **kwargs)¶

Queries the service and returns a table object.

Serves the same function as query_region, but only collects the response from the Simbad server and returns.

Parameters:

coordinatesstr or astropy.coordinates object: the identifier or coordinates around which to query.
radiusstr or Quantity, optional: the radius of the region. If missing, set to default value of 2 arcmin.
equinoxfloat, optional: the equinox of the coordinates. If missing set to default 2000.0.
epochstr, optional: the epoch of the input coordinates. Must be specified as [J|B] <epoch>. If missing, set to default J2000.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

tableA Table object.

query_region_async(coordinates, radius=<Quantity 2. arcmin>, equinox=2000.0, epoch='J2000', cache=True, get_query_payload=False)[source]¶

Serves the same function as query_region, but only collects the response from the Simbad server and returns.

Parameters:

coordinatesstr or astropy.coordinates object: the identifier or coordinates around which to query.
radiusstr or Quantity, optional: the radius of the region. If missing, set to default value of 2 arcmin.
equinoxfloat, optional: the equinox of the coordinates. If missing set to default 2000.0.
epochstr, optional: the epoch of the input coordinates. Must be specified as [J|B] <epoch>. If missing, set to default J2000.
get_query_payloadbool, optional: When set to True the method returns the HTTP request parameters. Defaults to False.

Returns:

responserequests.Response: Response of the query from the server.

remove_votable_fields(*args, **kwargs)[source]¶

Removes the specified field names from SimbadClass._VOTABLE_FIELDS

Parameters:

list of field_names to be removed
strip_params: bool: If true, strip the specified keywords before removing them: e.g., ra(foo) would remove ra(bar) if this is True

reset_votable_fields()[source]¶: resets VOTABLE_FIELDS to defaults

Navigation

SimbadClass¶