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Professor Leah Morabito's Outputs (10)

MIGHTEE: multi-wavelength counterparts in the COSMOS field (2023)
Journal Article
Whittam, I., Prescott, M., Hale, C., Jarvis, M. .., Heywood, I., An, F., …White, S. (2024). MIGHTEE: multi-wavelength counterparts in the COSMOS field. Monthly Notices of the Royal Astronomical Society, 527(2), 3231-3245. https://doi.org/10.1093/mnras/stad3307

In this paper we combine the Early Science radio continuum data from the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey, with optical and near-infrared data and release the cross-matched catalogues. The radio data used in... Read More about MIGHTEE: multi-wavelength counterparts in the COSMOS field.

Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope (2023)
Journal Article
Venkattu, D., Lundqvist, P., Torres, M. P., Morabito, L., Moldón, J., Conway, J., …Tasse, C. (2023). Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope. Astrophysical Journal, 953(2), Article 157. https://doi.org/10.3847/1538-4357/ace2c1

We present an International LOFAR Telescope (ILT) subarcsecond-resolution image of the nearby galaxy M51 with a beam size of 0farcs436 × 0farcs366 and rms of 46 μJy. We compare this image with a European VLBI Network study of M51 and discuss the supe... Read More about Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope.

A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey (2023)
Journal Article
Gordon, Y. A., Rudnick, L., Andernach, H., Morabito, L. K., O’Dea, C. P., Achong, K., …Vantyghem, A. N. (2023). A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey. Astrophysical Journal Supplement, 267(2), Article 37. https://doi.org/10.3847/1538-4365/acda30

Active galactic nuclei (AGNs) can often be identified in radio images as two lobes, sometimes connected to a core by a radio jet. This multicomponent morphology unfortunately creates difficulties for source finders, leading to components that are (a)... Read More about A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey.

VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope (2023)
Journal Article
Cordun, C. M., Timmerman, R., Miley, G. K., van Weeren, R. J., Sweijen, F., Morabito, L. K., & Röttgering, H. J. A. (2023). VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope. Astronomy & Astrophysics, 676, Article A29. https://doi.org/10.1051/0004-6361/202346320

It is generally known that luminous, ultra-steep spectrum radio sources are preferentially associated with massive galaxies at high redshifts. In this paper, we describe a pilot project directed at such objects to demonstrate the feasibility and impo... Read More about VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope.

The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties (2023)
Journal Article
Best, P., Kondapally, R., Williams, W., Cochrane, R., Duncan, K., Hale, C., Haskell, P., Małek, K., McCheyne, I., Smith, D., Wang, L., Botteon, A., Bonato, M., Bondi, M., Rivera, G. C., Gao, F., Gürkan, G., Hardcastle, M., Jarvis, M., Mingo, B., …van Weeren, R. (2023). The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties. Monthly Notices of the Royal Astronomical Society, 523(2), 1729–1755. https://doi.org/10.1093/mnras/stad1308

Source classifications, stellar masses and star formation rates are presented for ≈80,000 radio sources from the first data release of the Low Frequency Array Two-metre Sky Survey (LoTSS) Deep Fields, which represents the widest deep radio survey eve... Read More about The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties.

Identifying Active Galactic Nuclei at z ∼ 3 from the HETDEX Survey Using Machine Learning (2023)
Journal Article
Tardugno Poleo, V., Finkelstein, S. L., Leung, G., Mentuch Cooper, E., Gebhardt, K., Farrow, D. J., Gawiser, E., Zeimann, G., Schneider, D. P., Morabito, L., Mock, D., & Liu, C. (2023). Identifying Active Galactic Nuclei at z ∼ 3 from the HETDEX Survey Using Machine Learning. Astronomical Journal, 165(4), Article 153. https://doi.org/10.3847/1538-3881/acba92

We used data from the Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) to study the incidence of AGN in continuum-selected galaxies at z ∼ 3. From optical and infrared imaging in the 24 deg2 Spitzer HETDEX Exploratory Large Area survey, we cons... Read More about Identifying Active Galactic Nuclei at z ∼ 3 from the HETDEX Survey Using Machine Learning.

Piercing the dusty veil of hyper-luminous infrared galaxies: Sub-arcsecond 144 MHz ILT observations of HLIRGs in the Lockman Hole (2023)
Journal Article
Sweijen, F., Lyu, Y., Wang, L., Gao, F., Röttgering, H., van Weeren, R., Morabito, L., Best, P., Małek, K., Williams, W., Prandoni, I., Bonato, M., & Bondi, M. (2023). Piercing the dusty veil of hyper-luminous infrared galaxies: Sub-arcsecond 144 MHz ILT observations of HLIRGs in the Lockman Hole. Astronomy & Astrophysics, 671, Article A85. https://doi.org/10.1051/0004-6361/202244378

Context. Hyper-luminous infrared galaxies (HLIRGs) are among the most extreme systems in the Universe. With infrared (IR) luminosities of LIR > 1013 L⊙ they can have IR-derived star formation rates (SFRs) exceeding 103 M⊙ yr−1. Theoretical models hav... Read More about Piercing the dusty veil of hyper-luminous infrared galaxies: Sub-arcsecond 144 MHz ILT observations of HLIRGs in the Lockman Hole.

V-LoTSS: The circularly polarised LOFAR Two-metre Sky Survey (2023)
Journal Article
Callingham, J., Shimwell, T., Vedantham, H., Bassa, C., O’Sullivan, S., Yiu, T., Bloot, S., Best, P., Hardcastle, M., Haverkorn, M., Kavanagh, R., Lamy, L., Pope, B., Röttgering, H., Schwarz, D., Tasse, C., van Weeren, R., White, G., Zarka, P., Bomans, D., …Zheng, J. (2023). V-LoTSS: The circularly polarised LOFAR Two-metre Sky Survey. Astronomy & Astrophysics, 670, Article A124. https://doi.org/10.1051/0004-6361/202245567

We present the detection of 68 sources from the most sensitive radio survey in circular polarisation conducted to date. We used the second data release of the 144 MHz LOFAR Two-metre Sky Survey to produce circularly polarised maps with a median noise... Read More about V-LoTSS: The circularly polarised LOFAR Two-metre Sky Survey.

A low-frequency sub-arcsecond view of powerful radio galaxies in rich-cluster environments: 3C 34 and 3C 320 (2023)
Journal Article
Mahatma, V., Basu, A., Hardcastle, M., Morabito, L., & van Weeren, R. (2023). A low-frequency sub-arcsecond view of powerful radio galaxies in rich-cluster environments: 3C 34 and 3C 320. Monthly Notices of the Royal Astronomical Society, 520(3), 4427-4442. https://doi.org/10.1093/mnras/stad395

Models of radio galaxy physics have been primarily based on high frequency (≥1 GHz) observations of their jets, hotspots, and lobes. Without highly resolved low-frequency observations, which provide information on older plasma, our understanding of t... Read More about A low-frequency sub-arcsecond view of powerful radio galaxies in rich-cluster environments: 3C 34 and 3C 320.