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CHIME/FRBPublic data

Outrigger Catalog 1
Bursts traced to their galaxies.

The first catalog from CHIME/FRB Outriggers: 83 bursts localized to about 2″ × 60″ with CHIME and the KKO Outrigger, each with its most probable host galaxies from PATH, spectroscopic redshifts for the secure hosts, and limits on persistent radio emission.

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Catalog data83 bursts

How to use this table

Each row is one burst detected by CHIME. A burst made of several parts, called sub-bursts, has a row for each part.

  • Sort the table

    Click a column name to sort by it. Click it again to reverse the order. The arrow beside the name shows the current order.

  • Find out what a column means

    Point at or tap the information button beside a column name. Every column is also explained in the glossary.

  • See one burst in detail

    Click a burst name to open its own page, with all of its measurements and plots.

  • Search

    Type a burst name, such as FRB 20231229A, or the name of a repeating source, then press Search. To see every burst again, clear the box and press Search.

  • Choose which columns to show

    Click Columns, tick the ones you want, then press Apply. “Back to the default columns” restores the original set.

  • Move around

    Scroll sideways to see more columns; the burst name stays in place. Use the page numbers below the table to see more rows.

  • Dashes and limits

    A dash (—) means there is no value for that burst. A “<” before a number means the true value is below it.

  • Use the data yourself

    The table shows the published catalog. Download the full catalog to work with it in a spreadsheet or your own code.

Choose columns

Tick the columns you want in the table, then press Apply. The burst name is always shown.

Identification
Localization
Dispersion
Flux
Most probable host
Second most probable host
Persistent radio emission
Notes

Click a column name to sort. Click a burst name to see its details and plots.

Burst name
 
RA
degrees
Dec
degrees
Major err.
arcmin
DM
pc cm⁻³
Host
 
P(O|x)
 
Host z
 
FRB 20231118A312.3918737.923520.343473.1—0.000—
FRB 20231118B213.6797872.350210.280317.4Silver0.877—
FRB 20231123A82.623254.475540.271302.1Gold0.9560.0729
FRB 20231123C4.0894820.029330.227304.5—0.332—
FRB 20231126A21.8160389.288940.985673.3—0.122—
FRB 20231127A36.8351758.908700.238412.5—0.666—
FRB 20231128A199.5782042.992710.498331.6Gold0.9850.1079
FRB 20231201A54.5892926.817670.338169.4Gold0.9110.119
FRB 20231202A65.0303938.633280.220437.7Gold0.988—
FRB 20231203A113.7260352.734161.026335.2—0.250—
FRB 20231204A207.9990348.116000.436221.0Gold0.9760.0644
FRB 20231206A112.4428456.256270.462457.7Gold0.9890.0659
FRB 20231209A180.9095150.078790.3651232.1—0.505—
FRB 20231210A13.1326416.301050.828482.4—0.509—
FRB 20231210B59.6679227.027460.378505.9—0.653—
FRB 20231214A143.546116.368810.219243.8—0.774—
FRB 20231219A284.7418389.203940.620603.7—0.011—
FRB 20231223A206.9735216.329400.344866.6—0.608—
FRB 20231223B78.6995148.754651.403499.4—0.260—
FRB 20231223C259.5446529.497940.189165.8Gold0.9530.1059
FRB 20231223D144.0072882.106840.705729.0—0.2080.1606
FRB 20231224A131.4598672.912790.377683.0—0.0820.08
FRB 20231224B172.9701682.872720.289373.2—0.607—
FRB 20231225A135.6029733.918570.792646.6—0.478—
FRB 20231225B54.87781-3.066191.242227.7—0.813—
FRB 20231225C211.7214474.449131.830515.6—0.217—
FRB 20231225D330.3371933.950850.411473.1—0.777—
FRB 20231229A26.4678335.112920.190198.5Gold0.9980.019
FRB 20231230A72.797612.393981.719131.4Gold0.9180.02981
FRB 20231230B355.7728278.089190.275476.8—0.827—
FRB 20231231A342.4018716.426780.1891247.5—0.373—
FRB 20240210B222.5218681.563150.290630.4—0.552—
FRB 20240210C325.604942.365461.197380.9—0.5030.3658

51–83 of 83 rows

Downloads

Download Outrigger Catalog 1

The complete catalog, with every burst and every column (version 2502.11217v2).

Catalog files

Citation

How to cite

This data is provided by the CHIME/FRB Collaboration. When using this data, please cite the paper listed here.

Tutorials

Working with the data

Query Outrigger Catalog 1 from your own code, read its files, or find guides to plotting the data.

Glossary

What each field means

Every field in Outrigger Catalog 1, grouped by topic, with its unit and a short description. The smaller grey names are the field names used in the downloaded files.

40 columns in 8 groups

Identification3

ColumnUnitDescription
Burst nametns_nameNo unitTransient Name Server name of the burst.
Repeater namerepeater_nameNo unitFor a repeat burst, the TNS name of its repeating source. Two bursts in the catalog are repeat bursts.
Event IDevent_idNo unitCHIME/FRB event ID.

Localization7

ColumnUnitDescription
Right ascensionradegreesRight ascension of the burst (ICRS), from the CHIME and KKO localization.
DeclinationdecdegreesDeclination of the burst (ICRS), from the CHIME and KKO localization.
Uncertainty, major axisa_errarcmin1σ uncertainty along the major axis of the localization ellipse, from the CHIME baseband localization.
Uncertainty, minor axisb_errarcmin1σ uncertainty along the minor axis of the localization ellipse, from VLBI between CHIME and KKO. It is conservatively set to 2″ for every burst.
Ellipse anglethetadegreesOrientation of the localization ellipse, in degrees east of north.
Galactic longitudegldegreesGalactic longitude.
Galactic latitudegbdegreesGalactic latitude.

Dispersion3

ColumnUnitDescription
Dispersion measuredmpc cm⁻³Dispersion measure of the burst, as in the paper's tables. Its uncertainty is negligible.
Milky Way disk DM (NE2001)dm_ne2001pc cm⁻³Milky Way disk (ISM) contribution to the dispersion measure along the line of sight, from the NE2001 model.
Milky Way halo DM (YT20)dm_halo_yt20pc cm⁻³Milky Way halo contribution to the dispersion measure, from the Yamasaki & Totani (2020) model.

Flux4

ColumnUnitDescription
Peak fluxfluxJyPeak flux density of the burst, after dedispersing to the structure-maximizing DM found by DM-phase. Quoted to 10% accuracy.
Peak flux uncertaintyflux_errJyUncertainty of the flux.
FluencefluenceJy msFluence of the burst. Quoted to 10% accuracy.
Fluence uncertaintyfluence_errJy msUncertainty of the fluence.

Most probable host11

ColumnUnitDescription
Host associationhost_classNo unitHow securely the burst is associated with a host galaxy, as defined in the paper. Gold: the most probable candidate has P(O|x) > 0.9. Silver: the two most probable candidates together have P(O|x) > 0.9.
Host probability P(O|x)host_p_oxNo unitPosterior probability P(O|x), from PATH, that the candidate is the burst's host galaxy. Above 0.9 is a secure association.
Host candidatehost_idNo unitCatalog ID of the most probable host galaxy candidate, in DECaLS or Pan-STARRS.
Right ascensionhost_radegreesRight ascension of the most probable host candidate.
Declinationhost_decdegreesDeclination of the most probable host candidate.
r-band magnitudehost_magmagCatalogued r-band magnitude of the candidate.
Spectroscopic redshifthost_z_specNo unitSpectroscopic redshift of the candidate, from the paper's follow-up or the literature. For a candidate that isn't a secure association, it isn't the burst's redshift.
Redshift sourcehost_z_spec_sourceNo unitWhere the spectroscopic redshift comes from: an observing program of the paper (Lick, Keck or Gemini), a VizieR catalog (V/147/sdss12 is SDSS DR12) or a paper's ADS bibcode.
Photometric redshifthost_z_photNo unitMedian photometric redshift of the candidate.
Photometric redshift, 95% lower boundhost_z_phot_l95No unitLower end of the photometric redshift's 95% interval.
Photometric redshift, 95% upper boundhost_z_phot_u95No unitUpper end of the photometric redshift's 95% interval.

Second most probable host9

ColumnUnitDescription
Host probability P(O|x)second_p_oxNo unitPosterior probability P(O|x), from PATH, that the second candidate is the burst's host galaxy.
Second candidatesecond_idNo unitCatalog ID of the second most probable host galaxy candidate, in DECaLS or Pan-STARRS.
Right ascensionsecond_radegreesRight ascension of the second candidate.
Declinationsecond_decdegreesDeclination of the second candidate.
r-band magnitudesecond_magmagCatalogued r-band magnitude of the second candidate.
Spectroscopic redshiftsecond_z_specNo unitSpectroscopic redshift of the second candidate.
Photometric redshiftsecond_z_photNo unitMedian photometric redshift of the second candidate.
Photometric redshift, 95% lower boundsecond_z_phot_l95No unitLower end of the second candidate's photometric redshift 95% interval.
Photometric redshift, 95% upper boundsecond_z_phot_u95No unitUpper end of the second candidate's photometric redshift 95% interval.

Persistent radio emission1

ColumnUnitDescription
Persistent radio luminosityprs_lumerg s⁻¹ Hz⁻¹Specific luminosity of persistent radio emission at the burst's position, or an upper limit (<), from VLASS at 3 GHz. For FRB 20231128A it's from FIRST at 1.4 GHz. Given for the bursts in the paper's Table 1.

Notes2

ColumnUnitDescription
Host follow-up noteshost_notesNo unitNotes on the host galaxy follow-up.
Persistent radio source notesprs_notesNo unitNotes on persistent radio emission.