Professor Leah Morabito's Outputs (5)

MIGHTEE: Are giant radio galaxies more common than we thought? (2020)
Journal Article
Delhaize, J., Heywood, I., Prescott, M., Jarvis, M., Delvecchio, I., Whittam, I., White, S., Hardcastle, M., Hale, C., Afonso, J., Ao, Y., Brienza, M., Brüggen, M., Collier, J., Daddi, E., Glowacki, M., Maddox, N., Morabito, L., Prandoni, I., Randriamanakoto, Z., …Vaccari, M. (2021). MIGHTEE: Are giant radio galaxies more common than we thought?. Monthly Notices of the Royal Astronomical Society, 501(3), 3833-3845. https://doi.org/10.1093/mnras/staa3837

We report the discovery of two new giant radio galaxies (GRGs) using the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey. Both GRGs were found within a ∼1 deg2 region inside the COSMOS field. They have redshifts of z = 0.1... Read More about MIGHTEE: Are giant radio galaxies more common than we thought?.

Reaching small scales with low-frequency imaging: applications to the Dark Ages (2020)
Journal Article
Morabito, L., & Silk, J. (2021). Reaching small scales with low-frequency imaging: applications to the Dark Ages. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379(2188), Article 20190571. https://doi.org/10.1098/rsta.2019.0571

The initial conditions for the density perturbations in the early Universe, which dictate the large-scale structure and distribution of galaxies we see today, are set during inflation. Measurements of primordial non-Gaussianity are crucial for distin... Read More about Reaching small scales with low-frequency imaging: applications to the Dark Ages.

Decoherence in LOFAR-VLBI beamforming (2020)
Journal Article
Bonnassieux, E., Edge, A., Morabito, L., & Bonafede, A. (2020). Decoherence in LOFAR-VLBI beamforming. Astronomy & Astrophysics, 637, Article A51. https://doi.org/10.1051/0004-6361/202037486

We show that the use of a superstation (a phased array created using multiple stations of an interferometric array) created in post-processing for LOFAR-VLBI observations introduces a direction-dependent loss of signal in the image. We show this effe... Read More about Decoherence in LOFAR-VLBI beamforming.

Fundamental differences in the radio properties of red and blue quasars: enhanced compact AGN emission in red quasars (2020)
Journal Article
Fawcett, V., Alexander, D., Rosario, D., Klindt, L., Fotopoulou, S., Lusso, E., Morabito, L., & Calistro Rivera, G. (2020). Fundamental differences in the radio properties of red and blue quasars: enhanced compact AGN emission in red quasars. Monthly Notices of the Royal Astronomical Society, 494(4), 4802-4818. https://doi.org/10.1093/mnras/staa954

We have recently used the Faint Images of the Radio Sky at Twenty-centimeters (FIRST) survey to show that red quasars have fundamentally different radio properties to typical blue quasars: a significant (factor ≈3) enhancement in the radio-detection... Read More about Fundamental differences in the radio properties of red and blue quasars: enhanced compact AGN emission in red quasars.

Fundamental differences in the radio properties of red and blue quasars: Insight from the LOFAR Two-metre Sky Survey (LoTSS) (2020)
Journal Article
Rosario, D., Fawcett, V., Klindt, L., Alexander, D., Morabito, L., Fotopoulou, S., Lusso, E., & Rivera, G. C. (2020). Fundamental differences in the radio properties of red and blue quasars: Insight from the LOFAR Two-metre Sky Survey (LoTSS). Monthly Notices of the Royal Astronomical Society, 494(3), 3061-3079. https://doi.org/10.1093/mnras/staa866

Red quasi-stellar objects (QSOs) are a subset of the luminous end of the cosmic population of active galactic nuclei (AGN), most of which are reddened by intervening dust along the line-of-sight towards their central engines. In recent work from our... Read More about Fundamental differences in the radio properties of red and blue quasars: Insight from the LOFAR Two-metre Sky Survey (LoTSS).