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researcher

Ayumi Takahashi

8 papers hereh-index 7197 citations29 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author2
  • middle author6

Across the 8 of 8 papers where every author was matched, so the position is known.

fields
  • astro-ph.GA8

identity via Semantic Scholar / OpenAlex

activity
20212026
most citedQuasar Luminosity Function at z = 7

64 citations · 77 across the 8 of their papers we have counts for

collaborators
Showing 2025Show all

3 papers · 1 filter

astro-ph.GA2025

Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XXIV. 54 New Quasars and Candidate Obscured Quasars at 5.71≤z≤7.02

Yoshiki Matsuoka, Kazushi Iwasawa, Masafusa Onoue +18

We present spectroscopic identification of 43 quasars and 11 candidate obscured quasars in the epoch of reionization (EoR) at 5.71≤z≤7.02, along with 29 galaxies at simil…

astro-ph.GA2025★ 13 cited

SHELLQs. Bridging the Gap: JWST Unveils Obscured Quasars in the Most Luminous Galaxies at z > 6

Yoshiki Matsuoka, Masafusa Onoue, Kazushi Iwasawa +17

The unprecedented sensitivity of the James Webb Space Telescope (JWST) has uncovered a surprisingly abundant population of mildly obscured, low-luminosity active galactic nuclei (A…

astro-ph.GA2025

Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XXIII. The powering mechanisms of the Lyα haloes around high-z quasars probed by slit spectroscopy

Hiroki Hoshi, Rikako Ishimoto, Nobunari Kashikawa +15

We present the analysis of Lyα haloes around faint quasars at z∼4 and z∼6. We use 20 and 162 quasars at z∼4 and z∼6, taken by slit spectroscopy, and detect Ly…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.