90 citations · 315 across the 28 of their papers we have counts for
28 papers
Evolution of bar-induced dark gaps in galaxy discs: evidence of strong bar-driven effects already at
Susnata Chattopadhyay, Soumavo Ghosh, Dimitri A. Gadotti +5
The properties of stellar bars play a crucial role in determining the bar-driven secular evolution in disc galaxies. However, a systematic observational study of the evolution of s…
The onset of stellar bars at Cosmic Noon. Bar-driven quenching and AGN co-evolution in a mature disc galaxy
Luca Costantin, Lorenzo Morelli, Cristina Cabello +15
Observations with the JWST revealed an unexpected abundance of barred galaxies at Cosmic Noon. However, the physical properties of these early bars are almost unconstrained, as it…
Hierarchical assembly in action: a galaxy tail from a disrupting group in the Virgo cluster outskirts
J. Alfonso L. Aguerri, Stefano Zarattini, Virginia Cuomo +1
Group environments are thought to play a key role in shaping galaxy evolution prior to cluster accretion. However, direct observational evidence linking group--cluster interactions…
Bulgeless Evolution And the Rise of Discs (BEARD) I. Physical drivers of the mass-size relation for Milky Way-like galaxies
C. Marrero-de la Rosa, J. Méndez-Abreu, A. de Lorenzo-Cáceres +20
In the standard cold dark matter (CDM) cosmology, the existence of massive pure-disc galaxies remains challenging within the hierarchical framework and is key to understandi…
Bulgeless Evolution And the Rise of Discs (BEARD) II. The role of mergers in shaping the Milky Way analogues in TNG50
Yetli Rosas-Guevara, Jairo Méndez-Abreu, Adriana de Lorenzo-Cáceres +20
We study the formation and evolution of bulgeless galaxies within the Milky Way-Andromeda analogue sample of the TNG50 simulation. Through kinematic decomposition with Mordor, we i…
The edge of the Milky Way's star-forming disc: Evidence from a 'U-shaped' stellar age profile
Karl Fiteni, Stuart Robert Anderson, Victor. P. Debattista +7
We leveraged reliable age and distance estimates from LAMOST-DR3 and APOGEE-DR17+AstroNN combined with \gaia\ data to perform a detailed analysis of the stellar age distribution in…
Why the Northern Hemisphere Needs a 30-40m Telescope and the Science at Stake: Ultra-Low-Mass Dwarf Galaxies Across the Boreal Cosmic Web
J. Alfonso L. Aguerri, Jesús Falcón-Barroso, María Argudo-Fernández +22
Dwarf galaxies dominate the galaxy population in the nearby Universe and occupy the regime where feedback, reionization, and environment exert their strongest influence on galaxy f…
Properties of Barred Galaxies with the Environment: II. The case of the Cosmic Web around the Virgo cluster
Virginia Cuomo, J. Alfonso L. Aguerri, Lorenzo Morelli +2
Context. Bars are elongated structures developed by a large fraction of disk galaxies in their central few kiloparsecs. However, the bar formation process is still not fully unders…
A bar stability criterion distinguishing between modified gravity and dark matter in galaxies
Tahere Kashfi, Mahmood Roshan, Virginia Cuomo +3
This paper presents a study on the distinguishability of dark matter and Modified Newtonian Dynamics (MOND) at galactic scales based on the stability criterion proposed by Efstathi…
The Tremaine-Weinberg method at high redshifts
Mahmood Roshan, Asiyeh Habibi, J. Alfonso L. Aguerri +11
This paper examines the reliability of the Tremaine-Weinberg (TW) method in measuring the pattern speed of barred galaxies at high redshifts. Measuring pattern speeds at high redsh…
Search for Slow Bars in Two Barred Galaxies with Nuclear Structures: NGC 6951 and NGC 7716
Yun Hee Lee, Ho Seong Hwang, Virginia Cuomo +9
We investigate two barred galaxies with nuclear structures, NGC 6951 and NGC 7716, to examine whether they host slow bars. Using Gemini/GMOS long-slit spectroscopy, we calculate th…
The counter-rotating stellar core of NGC 4494
L. Coccato, L. Morelli, A. Pizzella +2
Context. Kinematically decoupled cores (KDCs) are often found in the centers of early-type galaxies. Aims. We aim to investigate the kinematics, structure, and stellar populations…
The redshift evolution of galactic bar pattern speed in TNG50
Asiyeh Habibi, Mahmood Roshan, Mohammad Hosseinirad +4
In this paper, the redshift evolution of the galactic bar properties, like the bar length, pattern speed, and bar fraction, has been investigated for simulated galaxies at stellar…
The dynamical state of bars in cluster dwarf galaxies: The cases of NGC 4483 and NGC 4516
V. Cuomo, L. Morelli, J. A. L. Aguerri +13
Dwarf barred galaxies are the perfect candidates for hosting slowly-rotating bars. They are common in dense environments and they have a relatively shallow potential well, making t…
Properties of Barred Galaxies with the Environment: I. the case of the Virgo cluster
J. Alfonso L. Aguerri, Virginia Cuomo, Azahara Rojas-Roncero +1
Barred structures are widespread in a considerable fraction of galactic discs, spanning diverse environments and galaxy luminosities. The environment likely exerts a significant in…
The bar rotation rate as a diagnostic of dark matter content in the centre of disc galaxies
C. Buttitta, E. M. Corsini, J. A. L. Aguerri +6
We investigate the link between the bar rotation rate and dark matter content in barred galaxies by concentrating on the cases of the lenticular galaxies NGC4264 and NGC4277. These…
The interplay between accretion, galaxy downsizing and the formation of box/peanut bulges in TNG50
Stuart Robert Anderson, Steven Gough-Kelly, Victor P. Debattista +6
From the TNG50 cosmological simulation we build a sample of 191 well-resolved barred galaxies with a stellar mass at . We search for box/peanut bulges (BPs…
Testing for relics of past strong buckling events in edge-on galaxies: Simulation predictions and data from SG
V. Cuomo, V. P. Debattista, S. Racz +7
The short-lived buckling instability is responsible for the formation of at least some box/peanut (B/P) shaped bulges, which are observed in most massive, , barred galaxies. N…
A slow bar in the lenticular barred galaxy NGC 4277
C. Buttitta, E. M. Corsini, V. Cuomo +9
Aims: We characterised the properties of the bar hosted in lenticular galaxy NGC 4277, which is located behind the Virgo cluster. Methods: We measured the bar length and strength f…
A slow lopsided bar in the interacting dwarf galaxy IC 3167
V. Cuomo, E. M. Corsini, L. Morelli +6
We present surface photometry and stellar kinematics of IC 3167, a dwarf galaxy hosting a lopsided weak bar and infalling into the Virgo cluster. We measured the bar radius and str…
Fast galaxy bars continue to challenge standard cosmology
Mahmood Roshan, Neda Ghafourian, Tahere Kashfi +5
Many observed disc galaxies harbour a central bar. In the standard cosmological paradigm, galactic bars should be slowed down by dynamical friction from the dark matter halo. This…
Bar pattern speeds in CALIFA galaxies III. Solving the puzzle of ultrafast bars
Virginia Cuomo, Yun Hee Lee, Chiara Buttitta +3
More than 10% of the barred galaxies with a direct measurement of the bar pattern speed host an ultrafast bar. These bars extend beyond the corotation radius and challenge our unde…
Relations among structural parameters in barred galaxies with a direct measurement of bar pattern speed
Virginia Cuomo, J. Alfonso L. Aguerri, Enrico Maria Corsini +1
We investigate the relations between the properties of bars and their host galaxies in a sample of 77 nearby barred galaxies, spanning a wide range of morphological types and lumin…
Dynamical structure of small bulges reveals their early formation in ΛCDM paradigm
Luca Costantin, Jairo Méndez-Abreu, Enrico M. Corsini +6
The Λ cold dark matter (ΛCDM) paradigm of galaxy formation predicts that dense spheroidal stellar structures invariably grow at early cosmic time. These primordial spheroids evolve…