activity
20222025
most citedSource counts at 7.7 to 21 m in CEERS field with James Webb Space Telescope

20 citations · 71 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.HE2025

Do they repeat? Monitoring 36 non-repeating FRBs with FAST

Yuri Uno, Tetsuya Hashimoto, Tomotsugu Goto +12

The origin of fast radio bursts (FRBs), highly energetic, millisecond-duration radio pulses originating from beyond our galaxy, remains unknown. Observationally, FRBs are classifie…

astro-ph.CO2025

Decoding the cosmological baryonic fluctuations using localized fast radio bursts

Tzu-Yin Hsu, Tetsuya Hashimoto, Tsung-Ching Yang +7

Aims: The enigma of the missing baryons poses a prominent and unresolved problem in astronomy. Dispersion measures (DM) serve as a distinctive observable of fast radio bursts (FRBs…

astro-ph.SR2025★ 4 cited

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…

astro-ph.GA2024

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…

astro-ph.GA2024

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.…

astro-ph.GA2024

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…

astro-ph.CO2023

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…

astro-ph.SR2023★ 12 cited

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…

astro-ph.HE2023★ 16 cited

Future Constraints on Dark Matter with Gravitationally Lensed Fast Radio Bursts Detected by BURSTT

Simon C. -C. Ho, Tetsuya Hashimoto, Tomotsugu Goto +4

Understanding dark matter is one of the most urgent questions in modern physics. A very interesting candidate is primordial black holes (PBHs; Carr2016). For the mass ranges of $<…

astro-ph.GA2022★ 18 cited

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…

astro-ph.CO2022★ 1 cited

Constraining the Hubble constant and its lower limit from the proper motion of extragalactic radio jets

Tiger Yu-Yang Hsiao, Tomotsugu Goto, Tetsuya Hashimoto +11

The Hubble constant () is a measurement to describe the expansion rate of the Universe in the current era. However, there is a discrepancy between the measurements fr…

astro-ph.GA2022★ 20 cited

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…