249 citations · 599 across the 25 of their papers we have counts for
24 papers · 1 filter
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…
The evolution of obscured AGN across cosmic time -- A large quasar survey for the 2040s
Tanya Urrutia, Darshan Kakkad, Paula Sánchez-Sáez +21
We propose a large quasar demographic optical multi-object spectroscopic (MOS) survey targeting over 50 million AGN candidates up to the highest redshifts possible in the optical (…
Archaeological investigation of galaxies' evolutionary history in the cosmic middle ages
Anna R. Gallazzi, Stefano Zibetti, Mark Sargent +14
The cosmic Middle Ages, spanning the last 8-10 Gyr of the Universe, is a critical period in which massive early-formed systems coexist with global star formation quenching in less…
Connecting galaxies with their haloes -- from parsec to Mpc scales
K. Fahrion, J. van de Sande, K. R. Akhil +12
Galaxy evolution is driven by processes occurring across a wide range of scales, from star formation within giant molecular clouds (parsec scales) to outflows and secular evolution…
Hydrodynamic simulations of the Disc of Gas Around Supermassive black holes (HDGAS) -II; The transition from neutral atomic to molecular gas phases
Mojtaba Raouf, Serena Viti, Reihaneh Karimi +1
We use HDGAS hydrodynamic simulations to study the impact of active galactic nucleus (AGN) feedback on the conversion of atomic-gas to molecular-gas within the circumnuclear-disc (…
Impact of AGN feedback on the dynamics of gas; A Review across Diverse Environments
Mojtaba Raouf, Mohammad Hossein Purabbas, Fatemeh Fazel Hesar
This review examines the relationship between black hole activity and kinematic gas-star misalignment in brightest group galaxies (BGGs) with different merger rates. The formation…
Reconciling the magnetic field in central disc galaxies with the dynamical mass using the cosmological simulations
Mohammad Hosseinirad, Fatemeh Tabatabaei, Mojtaba Raouf +1
The Universe is pervaded by magnetic fields in different scales, although for simplicity, they are ignored in most cosmological simulations. In this paper, we use the TNG50, which…
Hydrodynamic simulations of the Disk of Gas Around Supermassive black holes (HDGAS) -I; Molecular Gas Dynamics
Mojtaba Raouf, Serena Viti, S. García-Burillo +9
We present hydrodynamic simulations of the interstellar medium (ISM) within the circumnuclear disk (CND) of a typical AGN-dominated galaxy influenced by mechanical feedback from an…
Cosmic evolution of radio-AGN feedback: confronting models with data
R. Kondapally, P. N. Best, M. Raouf +11
Radio-mode feedback is a key ingredient in galaxy formation and evolution models, required to reproduce the observed properties of massive galaxies in the local Universe. We study…
The First Fall is the Hardest: The Importance of Peculiar Galaxy Dynamics at Infall Time for Tidal Stripping Acting at the Centers of Groups and Clusters
Rory Smith, Paula Calderon-Castillo, Jihye Shin +2
Using dark matter only N-body cosmological simulations, we measure the pericentre distance of dark matter halos on their first infall into group and cluster halos. We find that the…
Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions
Simon P. Driver, Sabine Bellstedt, Aaron S. G. Robotham +67
In Galaxy And Mass Assembly Data Release 4 (GAMA DR4), we make available our full spectroscopic redshift sample. This includes 248682 galaxy spectra, and, in combination with earli…
The Isaac Newton Telescope monitoring survey of Local Group dwarf galaxies -- IV. The star formation history of Andromeda VII derived from long period variable stars
Mahdieh Navabi, Elham Saremi, Atefeh Javadi +10
We have examined the star formation history (SFH) of Andromeda VII (And VII), the brightest and most massive dwarf spheroidal (dSph) satellite of the Andromeda galaxy (M 31). Altho…
The SAMI Galaxy Survey: Kinematics of stars and gas in brightest group galaxies; the role of group dynamics
Mojtaba Raouf, Rory Smith, Habib G. Khosroshahi +17
We study the stellar and gas kinematics of the brightest group galaxies (BGGs) in dynamically relaxed and unrelaxed galaxy groups for a sample of 154 galaxies in the SAMI galaxy su…
On the reliability of photometric and spectroscopic tracers of halo relaxation
Mohammad H. Zhoolideh Haghighi, Mojtaba Raouf, Habib. G. Khosroshahi +2
We characterize the relaxation state of galaxy systems by providing an assessment of the reliability of the photometric and spectroscopic probe via the semi-analytic galaxy evoluti…
The Isaac Newton Telescope monitoring survey of Local Group dwarf galaxies. I. Survey overview and first results for Andromeda I
Elham Saremi, Atefeh Javadi, Jacco Th. van Loon +10
An optical monitoring survey in the nearby dwarf galaxies was carried out with the 2.5-m Isaac Newton Telescope (INT). 55 dwarf galaxies and four isolated globular clusters in the…
The Gas Accretion History of Low Mass Halos within the Cosmic Web from Cosmological Simulations
Kyungwon Chun, Rory Smith, Jihye Shin +2
Using high resolution hydrodynamical cosmological simulations, we study the gas accretion history of low mass halos located in a field-like, low density environment. We track their…
The impact of the dynamical state of galaxy groups on the stellar populations of central galaxies
Mojtaba Raouf, Rory Smith, Habib G. Khosroshahi +4
We study the stellar populations of the brightest group galaxies (BGGs) in groups with different dynamical states, using GAMA survey data. We use two independent, luminosity depend…
Feedback by supermassive black holes in galaxy evolution: impacts of accretion and outflows on the star formation rate
Mojtaba Raouf, Joseph Silk, Stanislav S. Shabala +4
We describe a physical model of the outflows produced as a result of gas accretion onto a black hole, and the resultant changes to star formation rates and efficiencies in galaxies…
The number of dwarf satellites of disk galaxies versus their bulge mass in the standard model of cosmology
B. Javanmardi, M. Raouf, H. G. Khosroshahi +3
There is a correlation between bulge mass of the three main galaxies of the Local Group (LG), i.e. M31, Milky Way (MW), and M33, and the number of their dwarf spheroidal galaxies.…
Merger history of central galaxies in Semi-Analytic Models of galaxy formation
Mojtaba Raouf, Habib G. Khosroshahi, Gary A. Mamon +3
We investigate the dynamical evolution of galaxies in groups with different formation epochs. Galaxy groups have been selected to be in different dynamical states, namely dynamical…
The many lives of active galactic nuclei-II: The formation and evolution of radio jets and their impact on galaxy evolution
Mojtaba Raouf, Stanislav S. Shabala, Darren J. Croton +2
We describe new efforts to model radio active galactic nuclei (AGN) in a cosmological context using the SAGE semi-analytic galaxy model. Our new method tracks the physical properti…
Evolution of compact and fossil groups of galaxies from semi-analytical models of galaxy formation
Amin Farhang, Habib G. Khosroshahi, Gary A. Mamon +2
We compare the mean mass assembly histories of compact and fossil galaxy groups in the Millennium dark matter simulation and an associated semi-analytic galaxy formation model. Tra…
Galaxy And Mass Assembly (GAMA): 'No Smoking' zone for giant elliptical galaxies?
Habib G. Khosroshahi, Mojtaba Raouf, Halime Miraghaei +8
We study the radio emission of the most massive galaxies in a sample of dynamically relaxed and un-relaxed galaxy groups from Galaxy and Mass Assembly (GAMA). The dynamical state o…
Evolution of galaxy groups in the Illustris simulation
Mojtaba Raouf, Habib G. Khosroshahi, Ali A. Dariush
We present the first study of evolution of galaxy groups in the Illustris simulation. We focus on dynamically relaxed and unrelaxed galaxy groups representing dynamically evolved a…