29 citations · 54 across the 10 of their papers we have counts for
10 papers · 1 filter
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…
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…
Conditions for Bar Formation in Bulgeless Disk Galaxies
Dajeong Jang, Woong-Tae Kim, Yun Hee Lee
While bars are commonly observed in disk galaxies, the precise conditions governing their formation remain incompletely understood. To investigate these conditions, we perform a su…
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…
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…
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…
The Origin of Star Formation in Early-type Galaxies Inferred from Spatially Resolved Spectroscopy
Yun Hee Lee, Ho Seong Hwang, Narae Hwang +2
We investigate the origin of star formation activity in early-type galaxies with current star formation using spatially resolved spectroscopic data from the Mapping Nearby Galaxies…
Properties of Fast and Slow Bars Classified by Epicyclic Frequency Curves from Photometry of Barred Galaxies
Yun Hee Lee, Myeong-Gu Park, Ho Seong Hwang +3
We test the idea that bar pattern speeds decrease with time owing to angular momentum exchange with a dark matter halo. If this process actually occurs, then the locations of the c…
Cosmic Evolution of Barred Galaxies up to z ~ 0.84
Taehyun Kim, E. Athanassoula, Kartik Sheth +4
We explore the cosmic evolution of the bar length, strength, and light deficit around the bar for 379 barred galaxies at 0.2 < z 0.835 using F814W images from the COSMOS sur…