SIMBAD references

2025MNRAS.536.3647R - Mon. Not. R. Astron. Soc., 536, 3647-3662 (2025/February-1)

A first glimpse at the MeerKAT DEEP2 field at S-band.

RANCHOD S., WAGENVELD J.D., KLOCKNER 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. and WIECHING G.

Abstract (from CDS):

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 S1 (1.96-2.84 GHz) and S4 (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 Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): catalogues - radio continuum: general

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 3

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