New ASKAP radio-continuum surveys of the Small Magellanic Cloud
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909900423036928 |
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| author | Khattab, O. K. Filipovic', M. D. Smeaton, Z. J. Alsaberi, R. Z. E. Crawford, E. J. Leahy, D. Dai, S. Rajabpour, N. |
| author_facet | Khattab, O. K. Filipovic', M. D. Smeaton, Z. J. Alsaberi, R. Z. E. Crawford, E. J. Leahy, D. Dai, S. Rajabpour, N. |
| contents | We present two new radio continuum images from the ASKAP POSSUM survey in the direction of the Small Magellanic Cloud. The two new source lists contain 36,571 radio continuum sources detected at 944 MHz and 15,227 sources at 1367 MHz, with beam sizes of approximately 14.5 by 12.2 arcsec and 8.7 by 8.2 arcsec, respectively. We used the Aegean software package to generate these point source catalogues, and together with the previously published MeerKAT catalogue, we estimated spectral indices for the full set of matched radio point sources. By cross-matching our ASKAP catalogues with the MeerKAT data, we identified 21,442 and 12,654 common point sources at 944 MHz and 1367 MHz, respectively, using a 2 arcsec matching radius. These new catalogues improve our understanding of the Small Magellanic Cloud and demonstrate the capability of current radio telescopes such as ASKAP to investigate diverse galactic source populations |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_09954 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | New ASKAP radio-continuum surveys of the Small Magellanic Cloud Khattab, O. K. Filipovic', M. D. Smeaton, Z. J. Alsaberi, R. Z. E. Crawford, E. J. Leahy, D. Dai, S. Rajabpour, N. Astrophysics of Galaxies We present two new radio continuum images from the ASKAP POSSUM survey in the direction of the Small Magellanic Cloud. The two new source lists contain 36,571 radio continuum sources detected at 944 MHz and 15,227 sources at 1367 MHz, with beam sizes of approximately 14.5 by 12.2 arcsec and 8.7 by 8.2 arcsec, respectively. We used the Aegean software package to generate these point source catalogues, and together with the previously published MeerKAT catalogue, we estimated spectral indices for the full set of matched radio point sources. By cross-matching our ASKAP catalogues with the MeerKAT data, we identified 21,442 and 12,654 common point sources at 944 MHz and 1367 MHz, respectively, using a 2 arcsec matching radius. These new catalogues improve our understanding of the Small Magellanic Cloud and demonstrate the capability of current radio telescopes such as ASKAP to investigate diverse galactic source populations |
| title | New ASKAP radio-continuum surveys of the Small Magellanic Cloud |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2511.09954 |