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Diverse Rotation Curves of Galaxies in a Simulated Universe: the Observed Dependence on Stellar Mass and Morphology Reproduced
Daeun Jeong, Ho Seong Hwang, Haeun Chung +1
We use the IllustrisTNG cosmological hydrodynamical simulation to study the rotation curves of galaxies in the local universe. To do that, we first select the galaxies with 9.4 …
Shell-type Tidal Features Are More Frequently Detected in Slowly Rotating Early-type Galaxies than Stream- and Tail-type Features
Yongmin Yoon, Jongwan Ko, Haeun Chung +2
To enhance our understanding of the impact of galaxy mergers on the kinematics of early-type galaxies (ETGs), we examine differences in specific stellar angular momentum within the…
Circumgalactic Ly Nebulae in Overdense Quasar Pair Regions Observed with the Palomar Cosmic Web Imager
Jessica S. Li, Carlos J. Vargas, Donal O'Sullivan +8
The recent discovery of enormous Ly nebulae (ELANe), characterized by physical extents kpc and Ly luminosities erg s, provide a unique opportunity to…
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
Abdurro'uf, Katherine Accetta, Conny Aerts +337
This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete…
Evidence for Impact of Galaxy Mergers on Stellar Kinematics of Early-type Galaxies
Yongmin Yoon, Changbom Park, Haeun Chung +1
We provide observational evidence that galaxy mergers significantly affect stellar kinematics of early-type galaxies (ETGs) such as specific stellar angular momentum within the hal…
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…
Rotation Curves of Galaxies and Their Dependence on Morphology and Stellar Mass
Yongmin Yoon, Changbom Park, Haeun Chung +1
We study how stellar rotation curves (RCs) of galaxies are correlated on average with morphology and stellar mass () using the final release of Sloan Digital Sky S…
Evolution of the spin of late-type galaxies caused by galaxy-galaxy interactions
Jeong-Sun Hwang, Changbom Park, Soo-hyeon Nam +1
We use N-body/hydrodynamic simulations to study the evolution of the spin of a Milky Way-like galaxy through interactions. We perform a controlled experiment of co-planner galaxy-g…
Revisiting FUSE O VI Emission in Galaxy Halos
Haeun Chung, Carlos J. Vargas, Erika Hamden
A significant fraction of baryons in galaxies are in the form of diffuse gas of the circumgalactic medium (CGM). One critical component of the multi-phases of CGM, the so-called "c…
PSF Deconvolution of the IFU Data and Restoration of Galaxy Stellar Kinematics
Haeun Chung, Changbom Park, Yong-Sun Park
We present a performance test of the Point Spread Function deconvolution algorithm applied to astronomical Integral Field Unit (IFU) Spectroscopy data for restoration of galaxy kin…
Star formation activity of barred spiral galaxies
Eunbin Kim, Ho Seong Hwang, Haeun Chung +4
We study the star formation activity of nearby galaxies with bars using a sample of late-type galaxies at 0.02 0.05489 and from the Sloan Digital Sky Surv…
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
Bela Abolfathi, D. S. Aguado, Gabriela Aguilar +344
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourtee…
Stellar Populations of Early-type Galaxies with Mid-Infrared Excess Emission
Jongwan Ko, Haeun Chung, Ho Seong Hwang +1
We present a stellar population analysis of quiescent (without H emission) and bright ( 21.5) early-type galaxies (ETGs) with recent star formation. The ETGs are s…