| Title: |
A first glimpse at the MeerKAT DEEP2 field at S-band. |
| Authors: |
Ranchod, S; Wagenveld, J D; Klöckner, H -R; Wucknitz, O; Deane, R P; Sridhar, S S; Barr, E; Buchner, S; Camilo, F; Damas-Segovia, A; Kasemann, C; Kramer, M; Legodi, L S; Mao, S A; Menten, K; Rammala, I; Rugel, M R; Wieching, G |
| Source: |
Monthly Notices of the Royal Astronomical Society; Feb2025, Vol. 536 Issue 4, p3647-3662, 16p |
| Subject Terms: |
MEERKAT; LITERARY sources; ANTENNAS (Electronics); CATALOGS |
| Abstract: |
We present the first wide-field extragalactic continuum catalogue with the MeerKAT S -band (2.5 GHz), of the radio-selected DEEP2 field. The combined image over the S 1 (1.96–2.84 GHz) and S 4 (2.62–3.50 GHz) sub-bands has an angular resolution of 6.8 arcsec |$\times$| 3.6 arcsec (4.0 arcsec |$\times$| 2.4 arcsec) at a robust weighting of |$R = 0.3$| (|$R=-0.5$|) and a sensitivity of 4.7 (7.5) µJy beam |$^{-1}$| with an on-source integration time of 70 min and a minimum of 52 of the 64 antennas, for respective observations. We present the differential source counts for this field, as well as a morphological comparison of resolved sources between S -band and archival MeerKAT L -band images. We find consistent source counts with the literature and provide spectral indices fitted over a combined frequency range of 1.8 GHz. These observations provide an important first demonstration of the capabilities of MeerKAT S -band imaging with relatively short integration times, as well as a comparison with existing S -band surveys, highlighting the rich scientific potential with future MeerKAT S -band surveys. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |