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20242026
most citedEddington Ratios of Dust-obscured Quasars at : Evidence Supporting Dust-obscured Quasars as Young Quasars

8 citations · 8 across the 12 of their papers we have counts for

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astro-ph.GA2026

Comparing the Near-infrared Spectral Energy Distributions from Different Stellar Population Synthesis Models with SPHEREx Observations

Jeong Hwan Lee, Minjin Kim, Woong-Seob Jeong +17

While stellar population synthesis (SPS) models have been widely used for spectral analysis in optical wavelengths, their characteristics remain uncertain in the near-infrared (NIR…

astro-ph.GA2026

A UV-to-Near-infrared QSO Composite Spectrum from the SPHEREx All-Sky Survey

Minjin Kim, Yongjung Kim, Woong-Seob Jeong +19

We present a composite spectrum of type 1 SDSS QSOs (median ), constructed using SPHEREx spectrophotometric data and covering a rest-frame wavelength…

astro-ph.GA2026

Black Hole Properties of Type-1 Active Galactic Nuclei in the North Ecliptic Pole Wide Field: I. Mid-infrared Sources with Optical Counterparts

Dohyeong Kim, Myungshin Im, Hyunjin Shim +11

We present measurements of black hole (BH) properties of 861 Type-1 active galactic nuclei (AGNs) in the North Ecliptic Pole (NEP)-Wide field. These AGNs are detected in both optic…

astro-ph.GA2026

Galaxy-Galaxy Blending in SPHEREx Survey Data

Kim Dachan, Hyunmi Song, Yigon Kim +8

The Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) will provide all-sky spectral survey data covering optical to mid-infrared…

astro-ph.GA2025

The Redshifts from 122 Bands: Comparative Redshift Forecast for Low-Resolution Spectra from SPHEREx and 7-Dimensional Sky Survey (7DS)

Jangho Bae, Bomee Lee, Myungshin Im +21

The recently initiated SPHEREx and 7DS surveys will deliver low-resolution spectra () for hundreds of millions of galaxies over the optical to near-infrared range…

astro-ph.GA2025

Possibility of using 3.3m PAH luminosity as a molecular gas mass estimator

Hyunjin Shim, Junhyun Baek, Dohyeong Kim +12

We present CO(1-0) observations of 50 star-forming galaxies at 0.01<z<0.35, for which 3.3m PAH emission flux or its upper limit is available. A scaling relation between 3.3$\,…

astro-ph.GA2025

Resolved Stellar Mass Estimation of Nearby Late-type Galaxies for the SPHEREx Era: Dependence on Stellar Population Synthesis Models

Jeong Hwan Lee, Minjin Kim, Taehyun Kim +7

The upcoming all-sky infrared spectrophotometric SPHEREx mission is set to provide spatially resolved stellar mass maps of nearby galaxies, offering more detailed insights than int…

astro-ph.GA2024

Accuracy of Stellar Mass-to-light Ratios of Nearby Galaxies in the Near-Infrared

Taehyun Kim, Minjin Kim, Luis C. Ho +12

Future satellite missions are expected to perform all-sky surveys, thus providing the entire sky near-infrared spectral data and consequently opening a new window to investigate th…

astro-ph.GA2024

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…

astro-ph.GA2024

Exploring Unobscured QSOs in the Southern Hemisphere with KS4

Yongjung Kim, Minjin Kim, Myungshin Im +7

We present a catalog of unobscured QSO candidates in the southern hemisphere from the early interim data of the KMTNet Synoptic Survey of Southern Sky (KS4). The KS4 data covers $\…

astro-ph.GA2024

Red Type-1 Quasars after Cosmic Noon and Impact on -related Quasar Statistics

Yongjung Kim, Dohyeong Kim, Myungshin Im +1

Over the past decades, nearly a million quasars have been explored to shed light on the evolution of supermassive black holes and galaxies. The ultraviolet-to-optical spectra of ty…

astro-ph.GA2024★ 8 cited

Eddington Ratios of Dust-obscured Quasars at : Evidence Supporting Dust-obscured Quasars as Young Quasars

Dohyeong Kim, Yongjung Kim, Myungshin Im +4

Dust-obscured quasars have been suspected as the intermediate stage galaxies between merger-driven star-forming galaxies and unobscured quasars. This merger-driven galaxy evolution…