The MeerKAT 1.3 GHz survey of the Large Magellanic Cloud: Point Source Catalogue
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| author | Rajabpour, N. Filipović, M. D. Cotton, W. D. Smeaton, Z. J. Bradley, A. C. Crawford, E. J. Ghavam, M. Khattab, O. K. van Loon, J. Th. |
| author_facet | Rajabpour, N. Filipović, M. D. Cotton, W. D. Smeaton, Z. J. Bradley, A. C. Crawford, E. J. Ghavam, M. Khattab, O. K. van Loon, J. Th. |
| contents | We present a point source catalogue of the Large Magellanic Cloud (LMC) using observations from the MeerKAT radio telescope across a broad frequency band centred at 1295 MHz (L-band) with 12 sub-bands and an angular resolution of 8 arcsec x 8 arcsec. We investigate the source flux density distribution and spectral indices and compare these results with previous radio catalogues, such as surveys conducted with the Australian Square Kilometre Array Pathfinder (ASKAP) at 888 MHz.
This new MeerKAT survey reaches a lower average noise level of 11 microJy beam^-1, compared with the previous ASKAP level of 58 microJy beam^-1. The higher sensitivity and resolution enable the detection of a significantly larger number of faint sources. The catalogue contains 339,128 point sources, representing a substantial increase compared with the 54,612 sources detected in the ASKAP survey. This catalogue provides improved insight into the source population distribution, spectral properties, positional accuracy, and the overall improvement in source recovery and survey depth in the LMC region. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_05966 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The MeerKAT 1.3 GHz survey of the Large Magellanic Cloud: Point Source Catalogue Rajabpour, N. Filipović, M. D. Cotton, W. D. Smeaton, Z. J. Bradley, A. C. Crawford, E. J. Ghavam, M. Khattab, O. K. van Loon, J. Th. Astrophysics of Galaxies We present a point source catalogue of the Large Magellanic Cloud (LMC) using observations from the MeerKAT radio telescope across a broad frequency band centred at 1295 MHz (L-band) with 12 sub-bands and an angular resolution of 8 arcsec x 8 arcsec. We investigate the source flux density distribution and spectral indices and compare these results with previous radio catalogues, such as surveys conducted with the Australian Square Kilometre Array Pathfinder (ASKAP) at 888 MHz. This new MeerKAT survey reaches a lower average noise level of 11 microJy beam^-1, compared with the previous ASKAP level of 58 microJy beam^-1. The higher sensitivity and resolution enable the detection of a significantly larger number of faint sources. The catalogue contains 339,128 point sources, representing a substantial increase compared with the 54,612 sources detected in the ASKAP survey. This catalogue provides improved insight into the source population distribution, spectral properties, positional accuracy, and the overall improvement in source recovery and survey depth in the LMC region. |
| title | The MeerKAT 1.3 GHz survey of the Large Magellanic Cloud: Point Source Catalogue |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2603.05966 |