DOI: 10.5281/zenodo.14961018
title: Data for: FRB Line-of-sight Ionization Measurement From Lightcone AAOmega Mapping Survey: the First Data Release

description: The FLIMFLAM Survey is a spectroscopic survey that targets at foreground galaxies of 10 localized Fast Radio Bursts (FRBs) with z<0.4. Each FRB field has a folder, which includes a CSV database file containing galaxies within 1 degree from the FRB and a folder of selection function. These galaxies are collected from the public available image surveys catalogs which are described in Table 2 of the FLIMFLAM DR1 paper. The selection function folder contains a HDF5 file of angular selection function and a TXT file of radial selection function. The description of the columns in the database, angular selection function and radial selection function files are as follows:

Database

File Name



[N]_FRB[xxx]/FRB[xxx]_DB.csv


where [N] = [0, 1, …, 8] and [xxx] = FRB name

Data Specification






Column Name



Unit



Default Value



Data Type



Description





[ImageSurvey]_objid



dimensionless



NA



Integer



Object ID from [ImageSurvey]





[ImageSurvey]_[Band]



AB magnitudes



NA



Float



[Band] band Kron (1980) magnitude from [ImageSurvey]





[ImageSurvey]_[Band]_err



AB magnitudes



NA



Float



Error in [Band] band Kron (1980) magnitude from [ImageSurvey]





FLIMFLAM_ID



dimensionless



NA



Integer



Unique object ID





AAOmega_survey



dimensionless



NA



String



Target for Wide or Narrow survey





AAOmega_ID



dimensionless



NA



Integer



Object ID used in AAOmega observation





AAOmega_rmag



AB magnitudes



NA



Float



Dereddened r band magnitude used in AAOmega observation





AAOmega_target



dimensionless



NA



Bool



Whether it is an AAOmega target





AAOmega_observed



dimensionless



NA



Bool



Whether it has been observed with AAOmega 





[NARROW-8m]_ID



dimensionless



NA



Integer



Object ID used in [NARROW-8m] observation





[NARROW-8m]_rmag



AB magnitudes



NA



Float



Dereddened r band magnitude used in [NARROW-8m] observation





[NARROW-8m]_target



dimensionless



NA



Bool



Whether it is a [NARROW-8m] target





[NARROW-8m]_observed



dimensionless



NA



Bool



Whether it has been observed with [NARROW-8m] 





ra



degrees



NA



Float



Right Ascension





dec



degrees



NA



Float



Declination





z



dimensionless



NA



Float



Redshift





ZQ



dimensionless



NA



Integer



Redshift Quality. 1 to 4 represent redshifts from low to high confidence.





z_source



dimensionless



NA



String



Redshift source





Note:



[ImageSurvey]: The Image Survey where the photometry data is collected. [ImageSurvey] = SDSS, 6dF, 2MASS, DES, Pan-STARRS or DECam (DECam actually refer to DELVE, but since it uses DECam photometric bands, we use the camera name instead of the survey name)

[Band]: The corresponding band of the magnitude (or error)

[NARROW-8m]: The NARROW-8m spectrograph used in this field. [NARROW-8m] = DEIMOS, GMOS or LRIS


Angular Selection Function (ASF)

Table Name



[N]_FRB[xxx]/Selection Functions/FRB[xxx]_ASF_[SurveyName].hd5


where [N] = [0, 1, …, 8], [xxx] = FRB name and[SurveyName] = [‘SDSS’, ‘6dF’, ‘FF’]

Table Description

Angular Selection Function (ASF) is the completeness of a given spectroscopic survey as a function of the spherical coordinates RA & Dec. The ASF is computed separately for every spectroscopic survey, which data is used in a given FRB field.

Data Specification

Group 1: SKY_RADEC






Column Name



Unit



Default Value



Data Type



Description





RA



degrees



NA



Float



Right Ascension





DEC



degrees



NA



Float



Declination





RA_rotated



degrees



NA



Float



Right Ascension after rotation





DEC_rotated



degrees



NA



Float



Declination after rotation





Weight



dimensionless



NA



Float



Angular selection function (Completeness)





Group 2: ARGO_XYZ






Column Name



Unit



Default Value



Data Type



Description





X



Mpc/h



NA



Float



Cartesian X coordinate in ARGO box





Y



Mpc/h



NA



Float



Cartesian Y coordinate in ARGO box





Z



Mpc/h



NA



Float



Cartesian Z coordinate in ARGO box





Weight



dimensionless



NA



Float



Angular selection function (Completeness)





Note:



The FRB is rotated to RA=0, DEC=0 after the rotation mentioned in Group 1.

More details (including the resolutions and ARGO box parameters) refer to “readme_ASF.txt” in each FRB selection function folder.


The ASF and RSF only calculated for FRB fields used for baryon distribution analysis, hence are not calculated for 20190520B and 20210117A.

Radial Selection Function (RSF)

Table Name



[N]_FRB[xxx]/Selection Functions/FRB[xxx]_RSF_[SurveyName].txt


where [N] = [0, 1, …, 8], [xxx] = FRB name and [SurveyName] = [‘SDSS’, ‘6dF’, ‘FF’]

Data Specification






Column Name



Unit



Default Value



Data Type



Description





Dist



Mpc/h



NA



Float



Comoving distance from the observer





fr



dimensionless



NA



Float



Radial selection function