12 citations · 27 across the 9 of their papers we have counts for
9 papers · 1 filter
Nebular continuum in high-redshift galaxies with JWST
Henrique Miranda, Ciro Pappalardo, José Afonso +2
Studying the relevance of accounting for both stellar and nebular continuum emission when performing optical spectral fitting has been mainly limited to galaxies in the local Unive…
The Road to Identifying the Earliest Radio-Powerful AGN with the SKA
Jose Afonso, Stergios Amarantidis, Stas Shabala +20
The Epoch of Reionization (EoR) is one of the most pivotal frontiers in modern astrophysics, marking the emergence of the first galaxies, stars, and supermassive black holes (SMBHs…
Through the fog: a complementary optical galaxy classification scheme for 'intermediate' redshifts
Duarte Muñoz Santos, Cirino Pappalardo, Henrique Miranda +10
Understanding galaxy classification depends on our interpretation of their spectra. To date, the hydrogen Balmer lines remain the most consistent way to classify galaxies, but at '…
EMU/GAMA: A new approach to characterising radio luminosity functions
J. Prathap, A. M. Hopkins, J. Afonso +16
This study characterises the radio luminosity functions (RLFs) for SFGs and AGN using statistical redshift estimation in the absence of comprehensive spectroscopic data. Sensitive…
Unveiling faint X-ray AGN populations in the NewAthena era: Insights from cosmological simulations
Nuno Covas, Israel Matute, Stergios Amarantidis +7
Recent observations expanded our understanding of galaxy formation and evolution, yet key challenges persist in the X-ray regime, crucial for studying Active Galactic Nuclei (AGN).…
MIGHTEE: exploring the relationship between spectral index, redshift and radio luminosity
Siddhant Pinjarkar, Martin J. Hardcastle, Dharam V. Lal +9
It has been known for many years that there is an apparent trend for the spectral index (α) of radio sources to steepen with redshift z, which has led to attempts to select high-re…
Importance of modelling the nebular continuum in galaxy spectra
Henrique Miranda, Ciro Pappalardo, José Afonso +7
The neglect of modelling both stellar and nebular emission significantly affects the derived physical properties of galaxies, particularly those with high star formation rates. Whi…
Tracing obscured galaxy build-up at high redshift using deep radio surveys
Stergios Amarantidis, Jose Afonso, Israel Matute +5
A fundamental question of extra-galactic astronomy that is yet to be fully understood, concerns the evolution of the star formation rate (SFR) and supermassive black hole (SMBH) ac…
Bulgeless galaxies in the COSMOS field: environment and star formation evolution at
M. Grossi, C. A. C. Fernandes, D. Sobral +5
Combining the catalogue of galaxy morphologies in the COSMOS field and the sample of H emitters at redshifts and of the HiZELS survey, we selected 220 st…