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Yoshiki Toba

0000-0002-3531-7863
astro-ph.GAastro-ph.COastro-ph.HEastro-ph.IMastro-ph.SRastro-ph.EP

On Valency

published · living versions
W_unu28bt7·v1 · currentpublished
Why a Multi-Cycle Treasury Program is Essential to Maximize JWST's Scientific Contributions to Galaxy Formation
with Genesis Community, Alice Shapley, Steven L. Finkelstein, Rachel S. Somerville +416
1 version

Preprints & journals

165 papers in the corpus · 2011–2026
SHELLQs. Black Hole Mass and Eddington Ratio Distributions of Intermediate-Luminosity Quasars at 6<z<72609.09266v1 · Masafusa Onoue, John D. Silverman, Yoshiki Matsuoka et al.2026 · 0 citationsarXiv
Diversity of Ionized Gas Structures in Nearby Metal-poor Dwarf Galaxies2608.19667v1 · Yuki Takagishi, Takuya Hashimoto, Kazuya Matsubayashi et al.2026 · 0 citationsarXiv
Discovery of four Narrow-line Type-1 Quasars at z = 2.54 -- 6.06 with Subaru 'Onohi'ula PFS-SSP2608.10074v1 · Ayumi Takahashi, Yoshiki Matsuoka, Yoshiki Toba et al.2026 · 0 citationsarXiv
Euclid: Discovery of 31 new quasars at 6.6<z<7.86.6 < z < 7.82607.03432v1 · D. Yang, J. F. Hennawi, F. Guarneri et al.2026 · 2 citationsA&A, 711, A104 (2026)
Decoupled Kinematics and Excitation in the Compton-thick AGN NGC 6552: Spatially Resolved KOOLS-IFU Observations2606.17144v2 · Kyuseok Oh, Yoshihiro Ueda, Kanta Fujiwara et al.2026 · 0 citationsarXiv
GREX-PLUS Science Book v22606.05237v3 · GREX-PLUS Science Team: Shunsuke Baba, Sirio Belli, Pietro Benotto et al.2026 · 0 citationsarXiv
Dense Ionized Outflow with Five Narrow Components in a Dust-obscured Galaxy2604.16822v1 · Taketo Yoshida, Tohru Nagao, Yoshiki Toba et al.2026 · 0 citationsarXiv
A Wide and Deep Exploration of Radio-detected Active Galactic Nuclei with Subaru HSC (WERGS). XII. Final Optical Identification of VLASS Radio Sources from the Subaru/HSC-SSP Wide Survey Over 1200 deg2^22603.27953v2 · Hisakazu Uchiyama, Kohei Ichikawa, Youwen Kong et al.2026 · 0 citationsarXiv
Blackbody Quasar and Radio Source (BBQSORS): A Candidate of Transitional Little Red Dots with a T∼104 KT\sim10^4\ K Blackbody Spectrum2603.13736v2 · Yuxing Zhong, Xiaoyang Chen, Kohei Ichikawa et al.2026 · 0 citationsarXiv
Black Hole Properties of Type-1 Active Galactic Nuclei in the North Ecliptic Pole Wide Field: I. Mid-infrared Sources with Optical Counterparts2603.09976v1 · Dohyeong Kim, Myungshin Im, Hyunjin Shim et al.2026 · 0 citationsarXiv
Bulk and turbulent gas motions in the interacting galaxy cluster Abell 3395 South observed with XRISM2602.21580v2 · Naomi Ota, Angie Veronica, Jakob Dietl et al.2026 · 1 citationarXiv
Subaru High-zz Exploration of Low-Luminosity Quasars (SHELLQs). XXV. Large-scale environments of low-luminosity quasars at z∼6z\sim6 traced by Lyα\alpha emitters2602.11736v2 · Junya Arita, Nobunari Kashikawa, Yoshiki Matsuoka et al.2026 · 0 citationsarXiv
XMM-Newton observations of ten high-redshift CAMIRA clusters of galaxies2601.16386v2 · Naomi Ota, Ikuyuki Mitsuishi, Nobuhiro Okabe et al.2026 · 0 citationsarXiv
Catalogs of optically-selected clusters and photometric luminous red galaxies from the Hyper Suprime-Cam Subaru Strategic Program final year dataset2512.13954v1 · Masamune Oguri, Yen-Ting Lin, Nobuhiro Okabe et al.2025 · 0 citationsarXiv
Euclid Quick Data Release (Q1): Euclid spectroscopy of quasars. 1. Identification and redshift determination of 3500 bright quasars2512.08803v2 · Y. Fu, R. Bouwens, K. I. Caputi et al.2025 · 0 citationsA&A, 711, A285 (2026)
Euclid: Quick Data Release (Q1)- The connection between galaxy close encounters and radio activity2511.02970v1 · M. Magliocchetti, A. La Marca, L. Bisigello et al.2025 · 0 citationsarXiv
SHELLQs-JWST: Revealing the Spectra of Extended Emission in 12 z > 6 Quasar Host Galaxies using the JWST NIRSpec Fixed Slit2510.22403v1 · Camryn L. Phillips, Michael A. Strauss, Masafusa Onoue et al.2025 · 4 citationsarXiv
A Possible Shutting-Down Event of Mass Accretion in An Active Galactic Nucleus at z~1.82510.12122v1 · Tomoki Morokuma, Malte Schramm, Toshihiro Kawaguchi et al.2025 · 1 citationarXiv
A z ~ 0.4 Galaxy Reflecting the high-redshift Little Red Dots: An Extended Starburst with an Overmassive Black Hole2510.02801v2 · Xiaoyang Chen, Kohei Ichikawa, Masayuki Akiyama et al.2025 · 5 citationsarXiv
Merger fraction in galaxy groups and clusters at z < 0.2: A non-parametric morphological study with Subaru Hyper Suprime-Cam2508.21507v1 · Anri Yanagawa, Yoshiki Toba, Naomi Ota et al.2025 · 1 citationarXiv
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XXIV. 54 New Quasars and Candidate Obscured Quasars at 5.71≤z≤7.025.71 \le z \le 7.022508.21229v2 · Yoshiki Matsuoka, Kazushi Iwasawa, Masafusa Onoue et al.2025 · 0 citationsApJS 280, 68 (2025)
SHELLQs-JWST perspective on the intrinsic mass relation between supermassive black holes and their host galaxies at z > 62507.23066v2 · John Silverman, Junyao Li, Xuheng Ding et al.2025 · 15 citationsarXiv
UNIONS Optical Identifications for VLASS Radio Sources in the Euclid Sky (UNVEIL) I. A Catalog of ~146,000 Radio Galaxies up to z~52507.08604v2 · Yuxing Zhong, Kohei Ichikawa, Hendrik Hildebrandt et al.2025 · 4 citationsarXiv
Environment of SDSS quasars at z=0.4z=0.4−-1.01.0 explored by Subaru HSC2505.04259v1 · Kohei Shibata, Tohru Nagao, Hisakazu Uchiyama et al.2025 · 3 citationsarXiv
SHELLQs. Bridging the Gap: JWST Unveils Obscured Quasars in the Most Luminous Galaxies at z > 62505.04825v3 · Yoshiki Matsuoka, Masafusa Onoue, Kazushi Iwasawa et al.2025 · 13 citationsApJ 988, 57 (2025)
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) XXII. Chandra observations of narrow-line quasar candidates at z>62505.04826v3 · K. Iwasawa, R. Gilli, F. Vito et al.2025 · 1 citationarXiv
SHELLQs-JWST Unveils the Host Galaxies of 12 Quasars at z>62505.03876v2 · Xuheng Ding, Masafusa Onoue, John D. Silverman et al.2025 · 11 citations2025ApJ, 993, 91D
Dust-obscured Galaxies with Broken Power-law Spectral Energy Distributions Discovered by UNIONS2504.15023v2 · Taketo Yoshida, Tohru Nagao, Yoshiki Toba et al.2025 · 2 citationsarXiv
The X-ray statistical properties of dust-obscured galaxies detected by eROSITA2504.09180v1 · Akatoki Noboriguchi, Kohei Ichikawa, Yoshiki Toba et al.2025 · 0 citationsA&A 702, A34 (2025)
Subaru High-zz Exploration of Low-Luminosity Quasars (SHELLQs). XXIII. The powering mechanisms of the Lyα\alpha haloes around high-zz quasars probed by slit spectroscopy2504.05984v1 · Hiroki Hoshi, Rikako Ishimoto, Nobunari Kashikawa et al.2025 · 0 citationsarXiv
XXL-HSC: Host properties of X-ray detected AGNs in XXL clusters2504.03422v2 · E. Drigga, E. Koulouridis, E. Pouliasis et al.2025 · 6 citationsA&A 697, A234 (2025)
AGN outflows and their properties in Mrk 766 as revealed by KOOLS-IFU on the Seimei Telescope2504.02936v1 · Kyuseok Oh, Yoshihiro Ueda, Satoshi Yamada et al.2025 · 4 citationsarXiv
Euclid Quick Data Release (Q1). First Euclid statistical study of galaxy mergers and their connection to active galactic nuclei2503.15317v2 · A. La Marca, L. Wang, B. Margalef-Bentabol et al.2025 · 8 citationsarXiv
Euclid Quick Data Release (Q1) First study of red quasars selection2503.15319v1 · F. Tarsitano, S. Fotopoulou, M. Banerji et al.2025 · 0 citationsarXiv
Euclid Quick Data Release (Q1). Extending the quest for little red dots to z<42503.15323v2 · L. Bisigello, G. Rodighiero, S. Fotopoulou et al.2025 · 11 citationsarXiv
UNIONS: The Ultraviolet Near-Infrared Optical Northern Survey2503.13783v1 · Stephen Gwyn, Alan W. McConnachie, Jean-Charles Cuillandre et al.2025 · 24 citationsarXiv
No Galaxy-Scale [CII] Fast Outflow in the z=6.72 Red Quasar HSC J1205$-$00002502.16858v1 · Mahoshi Sawamura, Takuma Izumi, Kouichiro Nakanishi et al.2025 · 4 citationsarXiv
The Halo Occupation Distribution Modeling of the X-ray-selected AGNs at 0.6 < z < 2.6 in the COSMOS field2502.10944v1 · Hiroyuki Ikeda, Takamitsu Miyaji, Taira Oogi et al.2025 · 0 citationsarXiv
The possible long-term periodic variability of the extremely luminous quasar WISE J090924.01+000211.12412.19573v1 · Takashi Horiuchi, Yoshiki Toba, Toru Misawa et al.2024 · 0 citationsarXiv
A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). X. The Massive and Passive Nature of Radio Galaxies at z∼4z \sim 42411.19009v1 · Yuta Yamamoto, Tohru Nagao, Takuji Yamashita et al.2024 · 0 citationsarXiv
Implication of a galaxy-scale negative feedback by one of the most powerful multi-phase outflows in a hyper-luminous infrared galaxy at the intermediate redshift2410.20842v3 · Xiaoyang Chen, Masayuki Akiyama, Kohei Ichikawa et al.2024 · 0 citationsarXiv
Cross-correlation of Luminous Red Galaxies with ML-selected AGN in HSC-SSP: Unobscured AGN residing in more massive halos2409.08314v1 · Rodrigo C'ordova Rosado, Andy D. Goulding, Jenny E. Greene et al.2024 · 2 citationsarXiv
A Post-Starburst Pathway for the Formation of Massive Galaxies and Black Holes at z>62409.07113v2 · Masafusa Onoue, Xuheng Ding, John D. Silverman et al.2024 · 25 citationsarXiv
Discovery of a hyperluminous quasar at z = 1.62 with Eddington ratio > 3 in the eFEDS field confirmed by KOOLS-IFU on Seimei Telescope2408.08498v1 · Yoshiki Toba, Keito Masu, Naomi Ota et al.2024 · 2 citationsarXiv
Environments around quasars at $z\sim$3 revealed by wide-field imaging with Subaru HSC and CFHT2407.20401v1 · Yuta Suzuki, Hisakazu Uchiyama, Yoshiki Matsuoka et al.2024 · 5 citationsarXiv
Ongoing and fossil large-scale outflows detected in a high-redshift radio galaxy: [C II] observations of TN J0924$-$2201 at z=5.174z=5.1742407.00977v1 · Kianhong Lee, Masayuki Akiyama, Kotaro Kohno et al.2024 · 3 citationsarXiv
SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). V. Confusion-limited Submillimeter Galaxy Number Counts at 450 μ\mum and Data Release for the COSMOS Field2405.20616v1 · Zhen-Kai Gao, Chen-Fatt Lim, Wei-Hao Wang et al.2024 · 7 citationsarXiv
Euclid. I. Overview of the Euclid mission2405.13491v2 · Y. Mellier, Abdurro'uf, J. A. Acevedo Barroso et al.2024 · 622 citationsA&A 697, A1 (2025)
Discovery of merging twin quasars at z = 6.052405.02465v1 · Yoshiki Matsuoka, Takuma Izumi, Masafusa Onoue et al.2024 · 19 citationsThe Astrophysical Journal Letters, Volume 965, Issue 1, id.L4, 8 pp (2024)
Merging gas-rich galaxies that harbor low-luminosity twin quasars at z = 6.05: a promising progenitor of the most luminous quasars2405.02468v2 · Takuma Izumi, Yoshiki Matsuoka, Masafusa Onoue et al.2024 · 9 citationsarXiv
Career total: 292 works. 165 are in this corpus.Showing the 50 most recent.

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