A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources
Approximately one-third of existing γ -ray sources identified by the Fermi Gamma-Ray Space Telescope are considered to be unassociated, with no known counterpart at other frequencies/wavelengths. These sources have been the subject of intense scrutiny and observational effort during the observatory’...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/acaa33 |
| _version_ | 1797695835890253824 |
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| author | S. Bruzewski F. K. Schinzel G. B. Taylor |
| author_facet | S. Bruzewski F. K. Schinzel G. B. Taylor |
| author_sort | S. Bruzewski |
| collection | DOAJ |
| description | Approximately one-third of existing γ -ray sources identified by the Fermi Gamma-Ray Space Telescope are considered to be unassociated, with no known counterpart at other frequencies/wavelengths. These sources have been the subject of intense scrutiny and observational effort during the observatory’s mission lifetime, and here we present a method of leveraging existing radio catalogs to examine these sources without the need for specific dedicated observations, which can be costly and complex. Via the inclusion of many sensitive low-frequency catalogs we specifically target steep-spectrum sources such as pulsars. This work has found steep-spectrum radio sources contained inside 591 Fermi unassociated fields, with at least 21 of them being notable for having pulsar-like γ -ray properties as well. We also identify a number of other fields of interest based on various radio and γ -ray selections. |
| first_indexed | 2024-03-12T03:16:57Z |
| format | Article |
| id | doaj.art-62d9ff41636e42cda98631ab1d7690d8 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T03:16:57Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-62d9ff41636e42cda98631ab1d7690d82023-09-03T14:08:24ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0194315110.3847/1538-4357/acaa33A Combined Radio Multi-Survey Catalog of Fermi Unassociated SourcesS. Bruzewski0https://orcid.org/0000-0001-7887-1912F. K. Schinzel1https://orcid.org/0000-0001-6672-128XG. B. Taylor2https://orcid.org/0000-0001-6495-7731Department of Physics and Astronomy, University of New Mexico , Albuquerque, NM 87131, USA ; bruzewskis@unm.eduNational Radio Astronomy Observatory , P.O. Box O, Socorro, NM 87801, USADepartment of Physics and Astronomy, University of New Mexico , Albuquerque, NM 87131, USA ; bruzewskis@unm.eduApproximately one-third of existing γ -ray sources identified by the Fermi Gamma-Ray Space Telescope are considered to be unassociated, with no known counterpart at other frequencies/wavelengths. These sources have been the subject of intense scrutiny and observational effort during the observatory’s mission lifetime, and here we present a method of leveraging existing radio catalogs to examine these sources without the need for specific dedicated observations, which can be costly and complex. Via the inclusion of many sensitive low-frequency catalogs we specifically target steep-spectrum sources such as pulsars. This work has found steep-spectrum radio sources contained inside 591 Fermi unassociated fields, with at least 21 of them being notable for having pulsar-like γ -ray properties as well. We also identify a number of other fields of interest based on various radio and γ -ray selections.https://doi.org/10.3847/1538-4357/acaa33High energy astrophysicsSurveysRadio source catalogsSpectral indexRadio astronomyActive galaxies |
| spellingShingle | S. Bruzewski F. K. Schinzel G. B. Taylor A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources The Astrophysical Journal High energy astrophysics Surveys Radio source catalogs Spectral index Radio astronomy Active galaxies |
| title | A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources |
| title_full | A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources |
| title_fullStr | A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources |
| title_full_unstemmed | A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources |
| title_short | A Combined Radio Multi-Survey Catalog of Fermi Unassociated Sources |
| title_sort | combined radio multi survey catalog of fermi unassociated sources |
| topic | High energy astrophysics Surveys Radio source catalogs Spectral index Radio astronomy Active galaxies |
| url | https://doi.org/10.3847/1538-4357/acaa33 |
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