Galaxy formation and evolution

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GA-NIFS: Dissecting the multiple sub-structures and probing their complex interactions in the \Lyalpha emitter galaxy CR7 at z = 6.6 with JWST/NIRSpec

(2024)

Authors:

C Marconcini, F D'Eugenio, R Maiolino, S Arribas, A Bunker, S Carniani, S Charlot, M Perna, B Rodríguez Del Pino, H Übler, PG Pérez-González, CJ Willott, T Böker, G Cresci, M Curti, I Lamperti, J Scholtz, E Parlanti, G Venturi
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GA-NIFS: ISM properties and metal enrichment in a merger-driven starburst during the Epoch of Reionisation probed with JWST and ALMA

(2024)

Authors:

J Scholtz, M Curti, F D'Eugenio, H Übler, R Maiolino, C Marconcini, R Smit, M Perna, J Witstok, S Arribas, T Böker, AJ Bunker, S Carniani, S Charlot, G Cresci, PG Pérez-González, I Lamperti, B Rodríguez Del Pino, E Parlanti, G Venturi
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A spatially-resolved spectral analysis of giant radio galaxies with MeerKAT

ArXiv 2411.06813 (2024)

Authors:

KKL Charlton, J Delhaize, K Thorat, I Heywood, MJ Jarvis, MJ Hardcastle, Fangxia An, I Delvecchio, CL Hale, IH Whittam, M Brüggen, L Marchetti, L Morabito, Z Randriamanakoto, SV White, AR Taylor
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Ionising properties of galaxies in JADES for a stellar mass complete sample: resolving the cosmic ionising photon budget crisis at the Epoch of Reionisation

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) (2024) stae2537

Authors:

C Simmonds, S Tacchella, K Hainline, BD Johnson, D Puskás, B Robertson, WM Baker, R Bhatawdekar, K Boyett, AJ Bunker, PA Cargile, S Carniani, J Chevallard, M Curti, E Curtis-Lake, Z Ji, GC Jones, N Kumari, I Laseter, R Maiolino, MV Maseda, P Rinaldi, A Stoffers, H Übler, NC Villanueva, CC Williams, C Willott, J Witstok, Y Zhu
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MIGHTEE: the continuum survey Data Release 1

Monthly Notices of the Royal Astronomical Society Oxford University Press 536:3 (2024) 2187-2211

Authors:

Catherine Hale, Ian Heywood, Matthew Jarvis, Imogen Whittam, Philip Best, Fangxia An, Rebecca Bowler, Ian Harrison, Allison Matthews, Dan Smith, Russ Taylor, Mattia Vaccari

Abstract:

The MeerKAT International GHz Tiered Extragalactic Exploration Survey (MIGHTEE) is one of the large survey projects using the MeerKAT telescope, covering four fields that have a wealth of ancillary data available. We present Data Release 1 of the MIGHTEE continuum survey, releasing total intensity images and catalogues over ∼20 deg2, across three fields at ∼1.2-1.3 GHz. This includes 4.2 deg2 over the Cosmic Evolution Survey (COSMOS) field, 14.4 deg2 over the XMM Large-Scale Structure (XMM-LSS) field and deeper imaging over 1.5 deg2 of the Extended Chandra Deep Field South (CDFS). We release images at both a lower resolution (7–9 arcsec) and higher resolution (∼5 arcsec). These images have central rms sensitivities of ∼1.3 −2.7 μJy beam−1 (∼1.2 −3.6 μJy beam−1) in the lower (higher) resolution images respectively. We also release catalogues comprised of ∼144 000 (∼114 000) sources using the lower (higher) resolution images. We compare the astrometry and flux-density calibration with the Early Science data in the COSMOS and XMM-LSS fields and previous radio observations in the CDFS field, finding broad agreement. Furthermore, we extend the source counts at the ∼10 μJy level to these larger areas (∼20 deg2) and, using the areal coverage of MIGHTEE we measure the sample variance for differing areas of sky. We find a typical sample variance of 10-20percnt for 0.3 and 0.5 sq. deg. sub-regions at S1.4 ≤ 200 μJy, which increases at brighter flux densities, given the lower source density and expected higher galaxy bias for these sources.
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