17 citations · 30 across the 14 of their papers we have counts for
16 papers · 1 filter
Barflow: Modeling Gas Kinematics of Bar-Driven Flows
Seungwon Baek, Woong-Tae Kim, Taehyun Kim +2
We present self-consistent -body/hydrodynamical simulations of isolated, Milky Way-like galaxies with stellar and gaseous disks. By varying the initial gas fraction, we find tha…
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…
The Changing-look Phenomenon Accompanied by an Accretion Mode Transition in NGC 3786
Suyeon Son, Minjin Kim, Luis C. Ho +2
To reveal the physical origin of the changing-look (CL) phenomenon in NGC 3786, which transitioned from type 1.8/1.9 to type 1, we present an analysis of long-term spectral monitor…
The Identification of Asymmetric Barred Galaxies in Illustris TNG-50
Junwoo Jung, Minjin Kim, Taehyun Kim
Most barred galaxies exhibit symmetric structures. However, recent studies have shown that a subset of barred galaxies exhibit lopsided morphologies. To quantify their occurrence a…
A nuclear disc at Cosmic Noon: evidence of early bar-driven galaxy evolution
Zoe A. Le Conte, Dimitri A. Gadotti, Thomas Harvey +7
Recent studies have revealed that bars can form as early as a few billion years after the Big Bang, already displaying characteristics similar to those of evolved bars in the Local…
The impact of bars on the properties of HII regions in the TIMER survey
Laura Sánchez-Menguiano, Dimitri A. Gadotti, Almudena Zurita +10
In this study we perform a comparative analysis of the properties of the HII regions located in different areas of barred galaxies, with the aim of investigating the impact of bars…
The evolution of the bar fraction and bar lengths in the last 12 billion years
Zoe A. Le Conte, Dimitri A. Gadotti, Leonardo Ferreira +7
We investigate the evolution of the bar fraction and length using an extended JWST NIRCam imaging dataset of galaxies at . We assess the wavelength dependence of t…
Dark gaps and resonances in barred galaxies
Taehyun Kim, Dimitri A. Gadotti, Myeong-gu Park +4
Dark gaps, low surface brightness regions along the bar minor axis, are expected to form as a consequence of secular evolution in barred galaxies. Although several studies have pro…
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…
Dissecting Bar-Induced Stellar Kinematics in Disk Galaxies: The Bisymmetric Model and Rotation Curve Modifications
Seungwon Baek, Woong-Tae Kim, Dajeong Jang +1
We analyze bars formed in -body simulations to investigate two key aspects of stellar kinematic structure of barred galaxies: the angular distributions of the radial and azimuth…
Optimising the analysis of emission lines in galaxies: the case of the MUSE TIMER galaxy NGC 613
Luiz A. Silva-Lima, Dimitri A. Gadotti, Lucimara P. Martins +11
Galaxy evolution is driven by spatially distributed processes with varying timescales. Integral field spectroscopy provides spatially-resolved information about these processes. Ne…
Bar ages derived for the first time in nearby galaxies: Insights on secular evolution from the TIMER sample
Camila de Sá-Freitas, Dimitri A. Gadotti, Francesca Fragkoudi +9
Once galaxies settle their discs and become self-gravitating, stellar bars can form, driving the subsequent evolution of their host galaxy. Determining the ages of bars can therefo…
Do strong bars exhibit strong non-circular motions?
Taehyun Kim, Dimitri A. Gadotti, Yun Hee Lee +4
Galactic bars induce characteristic motions deviating from pure circular rotation, known as non-circular motions. As bars are non-axisymmetric structures, stronger bars are expecte…
Impacts of bar-driven shear and shocks on star formation
Taehyun Kim, Dimitri A. Gadotti, Miguel Querejeta +12
Bars drive gas inflow. As the gas flows inwards, shocks and shear occur along the bar dust lanes. Such shocks and shear can affect the star formation and change the gas properties.…