MeerKAT 1.3 GHz Observations toward the Milky Way Bulge
We present a MeerKAT survey of portions of the Milky Way bulge. The survey covers 172.8 square degrees in two contiguous mosaics above and below the Galactic center as well as 32 single pointing fields at higher longitudes. The resolution of the images is ∼8 ^″ at a frequency of 1333 MHz with a typi...
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| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/adcc33 |
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| author | W. D. Cotton P. J. Agnihotri F. Camilo E. Polisensky S. D. Hyman |
| author_facet | W. D. Cotton P. J. Agnihotri F. Camilo E. Polisensky S. D. Hyman |
| author_sort | W. D. Cotton |
| collection | DOAJ |
| description | We present a MeerKAT survey of portions of the Milky Way bulge. The survey covers 172.8 square degrees in two contiguous mosaics above and below the Galactic center as well as 32 single pointing fields at higher longitudes. The resolution of the images is ∼8 ^″ at a frequency of 1333 MHz with a typical Stokes I rms of 20 μ Jy beam ^−1 . Most of the emission seen is from background extragalactic sources, but many compact Galactic objects are identifiable by their polarization properties. Apparent polarized emission resulting from fine-scale Faraday rotation in the interstellar medium is widespread in this region of the Galaxy. The survey is used to search for background giant radio galaxies, >700 kpc in size, identifying 17 such objects. Data products include FITS images of Stokes I , Q , U , and V as well as a Faraday analysis and lists of compact total intensity and polarized sources. |
| format | Article |
| id | doaj-art-52b0208249254d66a73a1ea67cd6fcb5 |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-52b0208249254d66a73a1ea67cd6fcb52025-08-20T03:49:46ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0198519410.3847/1538-4357/adcc33MeerKAT 1.3 GHz Observations toward the Milky Way BulgeW. D. Cotton0https://orcid.org/0000-0001-7363-6489P. J. Agnihotri1https://orcid.org/0009-0000-0057-992XF. Camilo2https://orcid.org/0000-0002-1873-3718E. Polisensky3https://orcid.org/0000-0003-3272-9237S. D. Hyman4https://orcid.org/0009-0006-5070-6329National Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA ; bcotton@nrao.edu; South African Radio Astronomy Observatory , Liesbeek House, River Park, Gloucester Road, Cape Town, 7700, South AfricaNational Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA ; bcotton@nrao.edu; San Francisco State University , San Francisco, CA 94132, USASouth African Radio Astronomy Observatory , Liesbeek House, River Park, Gloucester Road, Cape Town, 7700, South AfricaU.S. Naval Research Laboratory , 4555 Overlook Ave SW, Washington, DC 20375, USADepartment of Engineering and Physics, Sweet Briar College , Sweet Briar, VA 24595, USAWe present a MeerKAT survey of portions of the Milky Way bulge. The survey covers 172.8 square degrees in two contiguous mosaics above and below the Galactic center as well as 32 single pointing fields at higher longitudes. The resolution of the images is ∼8 ^″ at a frequency of 1333 MHz with a typical Stokes I rms of 20 μ Jy beam ^−1 . Most of the emission seen is from background extragalactic sources, but many compact Galactic objects are identifiable by their polarization properties. Apparent polarized emission resulting from fine-scale Faraday rotation in the interstellar medium is widespread in this region of the Galaxy. The survey is used to search for background giant radio galaxies, >700 kpc in size, identifying 17 such objects. Data products include FITS images of Stokes I , Q , U , and V as well as a Faraday analysis and lists of compact total intensity and polarized sources.https://doi.org/10.3847/1538-4357/adcc33Milky Way GalaxyGalactic bulgeGiant radio galaxies |
| spellingShingle | W. D. Cotton P. J. Agnihotri F. Camilo E. Polisensky S. D. Hyman MeerKAT 1.3 GHz Observations toward the Milky Way Bulge The Astrophysical Journal Milky Way Galaxy Galactic bulge Giant radio galaxies |
| title | MeerKAT 1.3 GHz Observations toward the Milky Way Bulge |
| title_full | MeerKAT 1.3 GHz Observations toward the Milky Way Bulge |
| title_fullStr | MeerKAT 1.3 GHz Observations toward the Milky Way Bulge |
| title_full_unstemmed | MeerKAT 1.3 GHz Observations toward the Milky Way Bulge |
| title_short | MeerKAT 1.3 GHz Observations toward the Milky Way Bulge |
| title_sort | meerkat 1 3 ghz observations toward the milky way bulge |
| topic | Milky Way Galaxy Galactic bulge Giant radio galaxies |
| url | https://doi.org/10.3847/1538-4357/adcc33 |
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