Information on Service 'Apertif Time Domain FRB detection cone search (DR2)'

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This is the final, full data release from the Apertif Radio Transient System (ARTS), a supercomputing radio-telescope instrument that performed real-time FRB detection and localisation on the Westerbork Synthesis Radio Telescope (WSRT) interferometer. It reached coherent-addition sensitivity over the entire field of the view of the primary- dish beam. The Apertif FRB survey (ALERT) detected 24 new FRBs, and interferometrically localised each of these to 0.4−10 sq. arcmin. All detections are broad band and very narrow, of order 1 ms duration, with high dispersion measures. Please note that the ARTS DR2 collection includes all data from the DR1 collection.

For a list of all services and tables belonging to this service's resource, see Information on resource 'Apertif Time Domain Data Release'

Overview

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This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Other services provided on the underlying data include:

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
compound_beam Compound Beam N/A N/A N/A
DEC Delta (ICRS) Declination (ICRS decimal) deg pos.eq.dec
hscs_pos Position/Name Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object N/A N/A
hscs_sr Search radius Search radius in arcminutes N/A N/A
MAXREC Match limit Maximum number of records returned. Pass 0 to retrieve service parameters. N/A N/A
RA Alpha (ICRS) Right Ascension (ICRS decimal) deg pos.eq.ra
RESPONSEFORMAT Output Format File format requested for output. N/A meta.code.mime
SR Search Radius Search radius deg N/A
target Target Name Name of the target. Matches also partial input (e.g. T1403+5324 or 1403+5324). N/A N/A
tied_array_beam Tied Array Beam N/A N/A N/A
time_min Observation start time N/A d time.start;obs.exposure
VERB Verbosity Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns. N/A N/A

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
_r Dist. Distance to cone center deg pos.distance
accref PSRFITS file N/A N/A meta.ref.url
compound_beam Compound Beam N/A N/A N/A
dec Declination N/A deg pos.eq.dec;meta.main
detection Detection 1 if an FRB was detected, 0 for a non-detection. N/A N/A
filesize File size N/A kbyte phys.size;meta.file
frb FRB identifier Name of the FRB if detected, linking to the FRB properties. None if non-detection. N/A N/A
obs_title Observation Title N/A N/A meta.id;meta.main
obsid Dataset ID ID of the data set N/A N/A
ra Right ascension N/A deg pos.eq.ra;meta.main
t_exptime Exposure time N/A s time.duration;obs.exposure
target Observation target Name of the observed target N/A N/A
tied_array_beam Tied Array Beam N/A N/A N/A
time_max Observation end time N/A d time.end;obs.exposure
time_min Observation start time N/A d time.start;obs.exposure
time_steps Number of time bins N/A N/A N/A

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
accref PSRFITS file N/A N/A meta.ref.url 1
_r Dist. Distance to cone center deg pos.distance 10
target Observation target Name of the observed target N/A N/A 20
ra Right ascension N/A deg pos.eq.ra;meta.main 20
dec Declination N/A deg pos.eq.dec;meta.main 20
time_min Observation start time N/A d time.start;obs.exposure 20
time_max Observation end time N/A d time.end;obs.exposure 20
detection Detection 1 if an FRB was detected, 0 for a non-detection. N/A N/A 20
frb FRB identifier Name of the FRB if detected, linking to the FRB properties. None if non-detection. N/A N/A 20
obs_title Observation Title N/A N/A meta.id;meta.main 20
obsid Dataset ID ID of the data set N/A N/A 20
compound_beam Compound Beam N/A N/A N/A 20
tied_array_beam Tied Array Beam N/A N/A N/A 20
t_exptime Exposure time N/A s time.duration;obs.exposure 20
time_steps Number of time bins N/A N/A N/A 20
filesize File size N/A kbyte phys.size;meta.file 20

Copyright, License, Acknowledgements

If you use this data, cite van Leeuwen et al. 2023 (2023A&A...672A.117V) and Pastor-Marazuela et al. 2024 (2024arXiv240600482P). Additionally, you can cite the service reference. The ARTS data release is licensed under the Creative Commons Attribution 3.0 License

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VOResource XML (that's something exclusively for VO nerds)