20 citations · 70 across the 18 of their papers we have counts for
18 papers
Tracing Obscured AGN Contribution and Number Fraction Across 0 < z < 6 with JWST
Angel Rodriguez Barbosa, Tomotsugu Goto, Daryl Joe D. Santos +8
Active galactic nuclei (AGN) are key drivers of galaxy evolution, yet many remain undetected in ultraviolet and optical surveys due to heavy dust obscuration. In these systems, abs…
Mid-IR luminosity functions: inferred dusty cosmic star-formation and black hole accretion histories from the JWST SMILES
Chih-Teng Ling, Tomotsugu Goto, Seong Jin Kim +5
Mid-infrared (mid-IR) observations are crucial for understanding galaxy evolution, tracing star formation, and active galactic nuclei (AGN) activity via dust emission. This work pr…
JWST MIRI color classification of mid-infrared selected galaxies: MIRI color classification toward cosmic noon
Ece Kilerci, Tomotsugu Goto, Matthew A. Malkan +7
We investigated the James Webb Space Telescope photometric color classification of mid-infrared (MIR) selected galaxies at high redshifts, toward cosmic noon. The aim of the presen…
Photometrically Selected Protocluster Candidates at z~9-10 in the JWST COSMOS-Web field
Cossas K. -W. Wu, Chih-Teng Ling, Tomotsugu Goto +8
High-redshift protoclusters are crucial for understanding the formation of galaxy clusters and the evolution of galaxies in dense environments. The James Webb Space Telescope (JWST…
Inferring Obscured Cosmic Black Hole Accretion History from AGN Found by JWST/MIRI CEERS Survey
Cheng-An Hsieh, Tomotsugu Goto, Chih-Teng Ling +4
This study presents the black hole accretion history (BHAH) of obscured active galactic nuclei (AGNs) identified from the JWST CEERS survey by Chien et al. (2024) using mid-infrare…
Brown dwarf number density in the JWST COSMOS-Web field
Amos Y. -A. Chen, Tomotsugu Goto, Cossas K. -W. Wu +9
Brown dwarfs are failed stars with very low mass (13 to 75 ), and an effective temperature lower than 2500 K. Thus, they play a key role in understanding the gap in the mass f…
Constraining the Hubble constant with scattering in host galaxies of fast radio bursts
Tsung-Ching Yang, Tetsuya Hashimoto, Tzu-Yin Hsu +5
Measuring the Hubble constant (H) is one of the most important missions in astronomy. Nevertheless, recent studies exhibit differences between the employed methods. Fast radio…
Revisiting the Mysterious Origin of FRB 20121102A with Machine-learning Classification
Leah Ya-Ling Lin, Tetsuya Hashimoto, Tomotsugu Goto +5
Fast radio bursts (FRBs) are millisecond-duration radio waves from the Universe. Even though more than 50 physical models have been proposed, the origin and physical mechanism of F…
Finding dusty AGNs from the JWST CEERS survey with mid-infrared photometry
Tom C. -C. Chien, Chih-Teng Ling, Tomotsugu Goto +8
The nature of the interaction between active galactic nuclei (AGNs) and their host galaxies remains an unsolved question. Therefore, conducting an AGN census is valuable to AGN res…
Exploring the faintest end of mid-infrared luminosity functions up to with the JWST CEERS survey
Chih-Teng Ling, Tomotsugu Goto, Seong Jin Kim +6
Mid-infrared (MIR) light from galaxies is sensitive to dust-obscured star-formation activities because it traces the characteristic emission of dust heated by young, massive stars.…
Polycyclic aromatic hydrocarbon (PAH) luminous galaxies in JWST CEERS data
Yu-Wei Lin, Cossas K. -W. Wu, Chih-Teng Ling +9
It has been an unanswered question how many dusty galaxies have been undetected from the state-of-the-art observational surveys. JWST enables us to detect faint IR galaxies that ha…
Cosmic star-formation history and black hole accretion history inferred from the JWST mid-infrared source counts
Seong Jin Kim, Tomotsugu Goto, Chih-Teng Ling +7
With the advent of the James Webb Space Telescope (JWST), extra-galactic source count studies were conducted down to sub-microJy in the mid-infrared (MIR), which is several tens of…
The true fraction of repeating fast radio bursts revealed through CHIME source count evolution
Shotaro Yamasaki, Tomotsugu Goto, Chih-Teng Ling +1
Fast Radio Bursts (FRBs) are classified into repeaters and non-repeaters, with only a few percent of the observed FRB population from the Canadian Hydrogen Intensity Mapping Experi…
A T-Dwarf Candidate from JWST Early Release NIRCam data
Po-Ya Wang, Tomotsugu Goto, Simon C. -C. Ho +6
We present a distant Ttype brown dwarf candidate at kpc discovered in the Cosmic Evolution Early Release Science (CEERS) fields by James Webb Space Telescope (JWST…
The molecular gas kinematics in the host galaxy of non-repeating FRB 180924B
Tzu-Yin Hsu, Tetsuya Hashimoto, Bunyo Hatsukade +5
Fast radio bursts (FRBs) are millisecond-duration transients with large dispersion measures. The origin of FRBs is still mysterious. One of the methods to comprehend FRB origin is…
Galaxy source counts at 7.7 m, 10 m and 15 m with the James Webb Space Telescope
Chih-Teng Ling, Seong Jin Kim, Cossas K. -W. Wu +7
We present mid-infrared galaxy number counts based on the Early Release Observations obtained by the James Webb Space Telescope (JWST) at 7.7-, 10- and 15-m (F770W, F1000W and F…
Source counts at 7.7 to 21 m in CEERS field with James Webb Space Telescope
Cossas K. -W. Wu, Chih-Teng Ling, Tomotsugu Goto +8
Source counts -- the number density of sources as a function of flux density -- represent one of the fundamental metrics in observational cosmology due to their straightforward and…
What determines the maximum stellar surface density of galaxies?
Chih-Teng Ling, Tetsuya Hashimoto, Tomotsugu Goto +5
Observationally, it has been reported that the densest stellar system in the Universe does not exceed a maximum stellar surface density, = Mpc…