Outputs (14)

The LOFAR Two Meter Sky Survey: Deep Fields, I -- Direction-dependent calibration and imaging (2021)
Journal Article
Tasse, C., Shimwell, T., Hardcastle, M., O'Sullivan, S., van Weeren, R., Best, P., Bester, L., Hugo, B., Smirnov, O., Sabater, J., Calistro-Rivera, G., de Gasperin, F., Morabito, L., Röttgering, H., Williams, W., Bonato, M., Bondi, M., Botteon, A., Brüggen, M., Brunetti, G., …Wiaux, Y. (2021). The LOFAR Two Meter Sky Survey: Deep Fields, I -- Direction-dependent calibration and imaging. Astronomy & Astrophysics, 648, Article A1. https://doi.org/10.1051/0004-6361/202038804

The Low Frequency Array (LOFAR) is an ideal instrument to conduct deep extragalactic surveys. It has a large field of view and is sensitive to large-scale and compact emission. It is, however, very challenging to synthesize thermal noise limited maps... Read More about The LOFAR Two Meter Sky Survey: Deep Fields, I -- Direction-dependent calibration and imaging.

Placing LOFAR-detected quasars in C iv emission space: implications for winds, jets and star formation (2021)
Journal Article
Rankine, A. L., Matthews, J. H., Hewett, P. C., Banerji, M., Morabito, L. K., & Richards, G. T. (2021). Placing LOFAR-detected quasars in C iv emission space: implications for winds, jets and star formation. Monthly Notices of the Royal Astronomical Society, 502(3), 4154-4169. https://doi.org/10.1093/mnras/stab302

We present an investigation of the low-frequency radio and ultraviolet properties of a sample of ≃10 500 quasars from the Sloan Digital Sky Survey Data Release 14, observed as part of the first data release of the Low-Frequency-Array Two-metre Sky Su... Read More about Placing LOFAR-detected quasars in C iv emission space: implications for winds, jets and star formation.

Extended X-ray emission around FR II radio galaxies: hotspots, lobes and galaxy clusters (2021)
Journal Article
Jimenez-Gallardo, A., Massaro, F., Paggi, A., D'Abrusco, R., Prieto, M. A., Peña-Herazo, H. A., Berta, V., Ricci, F., Stuardi, C., Wilkes, B. J., O'Dea, C. P., Baum, S. A., Kraft, R. P., Froman, W. R., Jones, C., Mingo, B., Liuzzo, E., Balmaverde, B., Capetti, A., Missaglia, V., …Morabito, L. K. (2021). Extended X-ray emission around FR II radio galaxies: hotspots, lobes and galaxy clusters. Astrophysical Journal Supplement, 252(2), Article 31. https://doi.org/10.3847/1538-4365/abcecd

We present a systematic analysis of the extended X-ray emission discovered around 35 FR II radio galaxies from the revised Third Cambridge catalog (3CR) Chandra Snapshot Survey with redshifts between 0.05 to 0.9. We aimed to (i) test for the presence... Read More about Extended X-ray emission around FR II radio galaxies: hotspots, lobes and galaxy clusters.

Sub-arcsecond imaging with the International LOFAR Telescope I. Foundational calibration strategy and pipeline (2021)
Journal Article
Morabito, L., Jackson, N., Mooney, S., Sweijen, F., Badole, S., Kukreti, P., Venkattu, D., Groeneveld, C., Kappes, A., Bonnassieux, E., Drabent, A., Iacobelli, M., Croston, J., Best, P., Bondi, M., Callingham, J., Conway, J., Deller, A., Hardcastle, M., McKean, J., …Zucca, P. (2021). Sub-arcsecond imaging with the International LOFAR Telescope I. Foundational calibration strategy and pipeline. Astronomy & Astrophysics, 658, Article A1. https://doi.org/10.1051/0004-6361/202140649

The International LOFAR Telescope is an interferometer with stations spread across Europe. With baselines of up to ~2000 km, LOFAR has the unique capability of achieving sub-arcsecond resolution at frequencies below 200 MHz. However, it is technicall... Read More about Sub-arcsecond imaging with the International LOFAR Telescope I. Foundational calibration strategy and pipeline.