author={Honggeun Khim and Jongwon Park and S. W. Seo and Jaehyun Lee and Rory J. E. Smith and Sukyoung K. Yi},
  journal={The Astrophysical Journal Supplement Series},
Isolated galaxies in low-density regions are significant in the sense that they are least affected by the hierarchical pattern of galaxy growth and interactions with perturbers, at least for the last few gigayears. To form a comprehensive picture of the star-formation history of isolated galaxies, we constructed a catalog of isolated galaxies and their comparison sample in relatively denser environments. The galaxies are drawn from the Sloan Digital Sky Survey Data Release 7 in the redshift… 

Galaxy Structure, Stellar Populations, and Star Formation Quenching at 0.6 ≲ z ≲ 1.2

It is found that the presence of a bulge is a necessary but not sufficient requirement for quenching at intermediate redshifts, and bulge-dominated galaxies show positive correlations among the D4000 strength, stellar mass, and the Sérsic index, while late-type disks do not show such strong positive correlations.


Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star formation activity and mass growth. Merger systems have commonly been identified from

KYDISC: Galaxy Morphology, Quenching, and Mergers in the Cluster Environment

We present the KASI-Yonsei Deep Imaging Survey of Clusters targeting 14 clusters at 0.015 ≲ z ≲ 0.144 using the Inamori Magellan Areal Camera and Spectrograph on the 6.5 m Magellan Baade telescope

Early-type galaxies with Recent Star Formation have low metallicities - evidence for star formation triggered by external processes?

On the basis of the Galaxy Evolution Explore (GALEX) ultraviolet (UV) data, many studies have demonstrated that recent star formation (RSF) is common in early-type galaxies. In particular,


We present a new database of our two-dimensional bulge–disk decompositions for 14,233 galaxies drawn from Sloan Digital Sky Survey DR12 in order to examine the properties of bulges residing in the

Classification and evolution of galaxies according to the dynamical state of host clusters and galaxy luminosities

We analyse the dependence of galaxy evolution on cluster dynamical state and galaxy luminosity for a sample of 146 galaxy clusters from the Yang SDSS catalogue. Clusters were split according to

Star–Gas Misalignment in Galaxies. II. Origins Found from the Horizon-AGN Simulation

There have been many studies aiming to reveal the origins of the star–gas misalignment found in galaxies, but there still is a lack of understanding of the contribution from each formation channel

The host galaxy of the short GRB 050709

The host of the short gamma-ray burst (GRB) 050709 is a morphologically disturbed low-luminous galaxy. At a redshift of z = 0.16, it belongs to one of the cosmologically nearest short-GRB hosts

Early-type Galaxy Spin Evolution in the Horizon-AGN Simulation

Using the Horizon-AGN simulation data, we study the relative role of mergers and environmental effects in shaping the spin of early-type galaxies (ETGs) after z ≃ 1. We follow the spin evolution of



Properties of isolated disk galaxies

We present a new sample of northern isolated galaxies, which are defined by the physical criterion that they were not affected by other galaxies in their evolution during the last few Gyr. To find

Early-type galaxies in low-density environments

We describe the construction and study of an objectively defined sample of early-type galaxies in low-density environments. The sample galaxies are selected from a recently completed redshift survey

The Optical and Near-Infrared Morphologies of Isolated Early-Type Galaxies

To study early-type galaxies in their simplest environments, we have constructed a well-defined sample of 30 isolated galaxies. The sample contains all early-type galaxies listed in the Third

The AMIGA sample of isolated galaxies II. Morphological refinement

Received / accepted Abstract. We present a complete refinement of the optical morphologies for galaxies in the Catalog of Isolated Galaxies (Karachentseva 1973) that forms the basis of the AMIGA

Tidally Triggered Star Formation in Close Pairs of Galaxies

We analyze optical spectra of a sample of 502 galaxies in close pairs and N-tuples, separated by ≤50 h-1 kpc. We extracted the sample objectively from the CfA2 redshift survey, without regard to the

The host galaxies of active galactic nuclei

We examine the properties of the host galaxies of 22 623 narrow-line active galactic nuclei (AGN) with 0.02 < z < 0.3 selected from a complete sample of 122 808 galaxies from the Sloan Digital Sky

An H I/Optical Atlas of Isolated Galaxies

We present an H I and optical survey of 41 extremely isolated galaxies in an attempt to search for the gaseous remnants of the galaxy formation process, predicted to exist by hierarchical models of

Bars in Disk-dominated and Bulge-dominated Galaxies at z ~ 0: New Insights from ~3600 SDSS Galaxies

We present a study of large-scale bars in the local universe, based on a large sample of 3692 galaxies, with 18.5 ⩽ Mg < − 22.0 mag and redshift 0.01 ⩽ z < 0.03, drawn from the Sloan Digitized Sky

The Dependence on Environment of the Color-Magnitude Relation of Galaxies

The distribution in color and absolute magnitude is presented for 55,158 galaxies taken from the Sloan Digital Sky Survey in the redshift range 0.08 < z < 0.12, as a function of the galaxy number

Effects of the environment on galaxies in the Catalogue of Isolated Galaxies: physical satellites and large scale structure ?

Context. We present a study of the 3D environment for a sample of 386 galaxies in the Catalogue of Isolated Galaxies (CIG, Karachentseva 1973) using the Ninth Data Release of the Sloan Digital Sky