FRB Line-of-sight Ionization Measurement from Lightcone AAOmega Mapping Survey: The First Data Release
Abstract This paper presents the first public data release (DR1) of the FRB Line-of-sight Ionization Measurement From Lightcone AAOmega Mapping (FLIMFLAM) survey, a wide field spectroscopic survey targeted on the fields of 10 precisely localized fast radio bursts (FRBs). DR1 encompasses spectroscopic data for 10,468 galaxy redshifts across 10 FRB fields with z < 0.4, covering approximately 26 deg 2 of the sky in total. FLIMFLAM is composed of several layers, encompassing the “wide” (covering ∼degree or >10 Mpc scales), “narrow” (several arcminutes or ∼Mpc), and integral field unit (“IFU”; ∼arcminute or ∼100 kpc) components. The bulk of the data comprises spectroscopy from the Two Degree Field-AAOmega instrument on the 3.9 m Anglo-Australian Telescope, while most of the narrow and IFU data was achieved using an ensemble of 8–10 m class telescopes. We summarize the information on our selected FRB fields, the criteria for target selection, methodologies employed for data reduction, spectral analysis processes, and an overview of our data products. An evaluation of our data reveals an average spectroscopic completeness of 48.43%, with over 80% of the observed targets having secure redshifts. Additionally, we describe our approach to generating angular masks and calculating the target selection functions, setting the stage for the impending reconstruction of the matter density field.
Authors
- Nicolás Tejos (ORCID: https://orcid.org/0000-0002-1883-4252)
- Khee‐Gan Lee (ORCID: https://orcid.org/0000-0001-9299-5719)
- R. M. Shannon (ORCID: https://orcid.org/0000-0002-7285-6348)
- K. W. Bannister (ORCID: https://orcid.org/0000-0003-2149-0363)
- Jason Xavier Prochaska (ORCID: https://orcid.org/0000-0002-7738-6875)
- Marcin Glowacki (ORCID: https://orcid.org/0000-0002-5067-8894)
- Yuxin Huang (ORCID: https://orcid.org/0000-0002-0298-8898)
- Jeff Cooke (ORCID: https://orcid.org/0000-0001-5703-2108)
- Jielai Zhang (ORCID: https://orcid.org/0000-0001-5310-4186)
- Lachlan James Marnoch (ORCID: https://orcid.org/0000-0003-1483-0147)
- John Chisholm (ORCID: https://orcid.org/0000-0002-0302-2577)
- Ilya S. Khrykin (ORCID: https://orcid.org/0000-0003-0574-7421)
- Adam T. Deller (ORCID: https://orcid.org/0000-0001-9434-3837)
- Sunil Simha (ORCID: https://orcid.org/0000-0003-3801-1496)
- J. Barrios
Institutions
- Commonwealth Scientific and Industrial Research Organisation (AU)
- The University of Sydney (AU)
- Australia Telescope National Facility (AU)
- Pontificia Universidad Católica de Valparaíso (CL)
- University of California, Santa Barbara (US)
- University of California, Santa Cruz (US)
- Curtin University (AU)
- Kavli Institute for the Physics and Mathematics of the Universe (JP)
- ARC Centre of Excellence for Gravitational Wave Discovery (AU)
- ARC Centre of Excellence for All-sky Astrophysics (AU)
- National Astronomical Observatory of Japan (JP)
- International Centre for Radio Astronomy Research (AU)
- Swinburne University of Technology (AU)
- The University of Tokyo (JP)
- The University of Texas at Austin (US)
- Macquarie University (AU)
Publication Details
- Journal
- The Astrophysical Journal Supplement Series
- Published
- 2025-04-01
- DOI
- https://doi.org/10.3847/1538-4365/adbc7f
- Citations
- 7
- Primary Topic
- Gamma-ray bursts and supernovae
- Type
- article
- Field-Weighted Citation Impact
- 8.08
Funders
- Australian Government