Y.Toba*, “Exploring the brightest: the hunt for the most luminous infrared galaxies in the Universe”, IAA Lunch Talk, ASIAA, Taiwan (August 2024) [Invited]
Y.Toba, A.Hashiguchi, N.Ota, M.Oguri, N.Okabe, Y.Ueda, M.Imanishi, CAMIRA-AGN collaboration, “Emergence of AGN in galaxy clusters: the relationship among AGN, environment, and cluster-cluster mergers”, 10th Galaxy Evolution Workshop, ASIAA, Taiwan (August 2024)
Y.Toba, “AGN properties of ∼1 million member galaxies of galaxy groups/clusters at z < 1.4 based on the Subaru Hyper Suprime-Cam survey”, AGN across Continents, Durham University (July 2024) (I also introduced Subaru PFS as a panelist in the plenary discussion session at the conference)
Y.Toba*, “Insights into AGN activity in galaxy groups/clusters: a statistical study with Subaru HSC survey”, Astro Colloquium, Tohoku University (July 2024) [Invited]
Y.Toba*, “AGN sciences with PRIMA, synergy with Subaru HSC and PFS”, PRIMA Science Workshop, NAOJ (June 2024) [Invited]
Y.Toba*, “Mid-infrared view of optically dark galaxies in the AKARI NEP field”, ALMA workshop 2023A, Nobumoto Ohama Memorial Hall, Ishigaki Island (January 2024)
Y.Toba*, “How does the AGN number fraction in galaxy clusters depend on redshift and distance from the cluster center?”, East-Asia AGN Workshop 2023, Kagoshima University (September 2023)
Y.Toba*, “Dust-obscured AGN viewed with multi-wavelength data”, ASIAA Colloquium, ASIAA (September 2023)
Y.Toba*, “Ionized and molecular gas outflow in dust-obscured AGN”, Mini-workshop on AGN x ALMA, Ehime University (June 2023)
Y.Toba, “Galaxy SED and morphological works based on Subaru Hyper Suprime-Cam towards Euclid”, Euclid Consortium meeting 2023, CPH Conference, Copenhagen (June 2023)
Y.Toba, S.Yamada, K.Matsubayashi, K.Terao, A.Moriya, Y.Ueda, and GOLAS-KOOLS collaboration, “How do galaxy mergers affect the ionized gas kinematics of galaxies? ~KOOLS-IFU/Seimei view of local U/LIRGs~”, 9th Galaxy Evolution Workshop, Kyoto University (February 2023)
Y.Toba, and PFS-GE AGN subWG, “PFS-SSP preparation: AGN sciences with cosmology and galaxy evolution surveys”, Subaru Users Meeting FY2022, NAOJ (January 2023)
Y.Toba*, “A multi-wavelength view of Active Galactic Nuclei selected with eROSITA”, ISAS Astrophysics Colloquia, ISAS/JAXA (November 2022) [Invited]
Y.Toba*, T.Liu, T.Urrutia, M.Salvato, J.Li, Y.Ueda, M.Brusa, N.Yutani, K.Wada, and HSC-eROSITA AGN collaboration, “eROSITA and WISE view of dust-obscured AGN at z < 4”, What drives the growth of black holes: a decade of reflection, Reykjavik, Iceland (September, 2022)
Y.Toba*, “An Introduction of Dust-Obscured AGN Viewed with Multi-Wavelength Data”, 2022 NCHU Astrophysics Symposium, National Chung Hsing University, Online (September, 2022) [Invited]
Y.Toba*, A.Hashiguchi, N.Ota, M.Oguri, N.Okabe, B.-Ch.Hsieh, A.Yanagawa, Y.Ueda, and HSC Projects 364 and 417 members, “Dependence of AGN fraction on cluster redshift and the distance from the cluster center viewed with Subaru Hyper Suprime-Cam”, COSPAR 2022, Athens, Greece (July, 2022)
Y.Toba*, “X-ray properties of WISE selected AGN viewed with eROSITA”, KIAA-DoA seminar, KIAA-PKU, Online (May, 2022) [Invited]
Y.Toba*, “Multi-wavelength view of dust-obscured AGN”, Astronomy Colloquium, Seoul National University, Online (April, 2022) [Invited]
Y.Toba*, “An overview of AGN WG”, The HSC collaboration meeting 2022, Online (February, 2022) [Invited]
Y.Toba*, T.Liu, T.Urrutia, M.Salvato, J.Li, Y.Ueda, M.Brusa, N.Yutani, K.Wada, and HSC-eROSITA AGN collaboration, “eROSITA view of WISE-selected AGN at z ≤ 4”, GALAXY EVOLUTION WORKSHOP 2021, Hybrid (online or NAOJ) (February, 2022)
Y.Toba*, Y.Ueda, P.Gandhi, C.Ricci, D.Burgarella, V.Buat, T.Nagao, S.Oyabu, H.Matsuhara, B.-C.Hsieh, “How does the polar dust affect the dust covering factor of AGNs? ~Application of X-CIGALE to SDSS quasars~”, NEP Conference 2020, ASIAA/Online, Taiwan (November, 2020)
Y.Toba*, T.Goto, N.Oi, T.-W.Wang, S.J.Kim, S.C.-C.Ho, D.Burgarella, T.Hashimoto, B.-C.Hsieh, T.-C.Huang, H.S.Hwang, H.Ikeda, H.K.Kim, S.Kim, D.Lee, M.A.Malkan, H.Matsuhara, T.Miyaji, R.Momose, Y.Ohyama, S.Oyabu, C.Pearson, D.J.D.Santos, H.Shim, T.Takagi, Y.Ueda, Y.Utsumi, T.Wada, “Dust properties of optically dark IR galaxies without counterparts of Subaru HSC in the AKARI NEP field”, DUST2020 in Marseille, Online (October, 2020)
Y.Toba*, “Search for optically `invisible’ galaxies in the AKARI North Ecliptic Pole Field”, ISAS Astrophysics Colloquia, Online (October, 2020) [Invited]
Y.Toba*, “Report on AGN joint HSC-eROSITA science programs”, German eROSITA Virtual Consortium meeting, Online (July, 2020) [Invited]
Y.Toba*, “eROSITA view of dust-obscured AGNs”, The HSC-AGN face-to-face meeting, Kyoto University, Japan (January, 2020)
Y.Toba*, W-H.Wang, T.Nagao, Y.Ueda, J.Ueda, C-F.Lim, Y-Y.Chang, T.Saito, R.Kawabe, “Far-infrared View of an Extremely Luminous Infrared Galaxy at z = 3.7”, Galaxy Formation and Evolution Across Cosmic Time, ASIAA, Taiwan (December, 2019)
Y.Toba*, “Multi-wavelength view of hyper/extremely-luminous infrared galaxies”, Kindai Cosmology Seminar, Kindai University, Japan (November, 2019) [Invited]
Y.Toba, “Possible collaboration between AGN and galaxy cluster sciences with HSC” , The 3rd HSC-X Cluster Workshop, Nagoya University, Japan (September, 2019)
Y.Toba*, “Physical properties of luminous radio galaxies at 0 < z < 1.7 selected with Subaru Hyper Suprime-Cam and VLA FIRST survey”, Supermassive Black Holes: Environment and Evolution, Corfu, Greece (June, 2019)
Y.Toba, “Dusty radio galaxies with high SFR, AGN luminosity, and Eddington ratio discovered by Subaru/HSC and VLA/FIRST”, 6th Galaxy Evolution Workshop, Kavli IPMU, Japan (June, 2019)
Y.Toba*, “Dust-obscured AGNs viewed with eROSITA and HSC”, First HSC-eROSITA-DE joint collaboration meeting, MPE, Germany (May, 2019) [Invited]
Y.Toba*, “Physical properties of optically-faint radio galaxies discovered by HSC and FIRST”, Subaru Users Meeting FY2018, NAOJ, Japan (January, 2019)
Y.Toba*, T.Yamashita, T.Nagao, W-H.Wang, Y.Ueda, K.Ichikawa, T.Kawaguchi, and WERGS team, “Physical properties of radio galaxies selected with Subaru Hyper Suprime-Cam and VLA FIRST surveys”, East-Asia AGN Workshop 2019, ASIAA, Taiwan (January, 2019)
Y.Toba*, “Multi-Wavelength properties of the HSC-FIRST radio galaxies/quasars”, Formation and evolution of SMBHs ~revealed by ‘Wide field’, ‘Multi-wavelength’, and ‘Transient’ surveys with HSC~, Tohoku University., Japan (November, 2018)
Y.Toba, “Infrared properties of optically-faint radio galaxies/quasars discovered by Subaru/HSC and FIRST”, IAU Focus Meeting FM3: Radio Galaxies: Resolving the AGN phenomenon, Austria Center Vienna, Austria (August, 2018)
Y.Toba*, “Discovery of an Extremely Luminous Dust-obscured Galaxy Observed with SDSS, WISE, JCMT, and SMA”, 5th Galaxy Evolution Workshop, Ehime University, Japan (June, 2018)
Y.Toba*, S,Komugi, T.Nagao, T.Yamashita, W-H.Wang, M.Imanishi, A-L.Sun, “No Sign of Strong Molecular Gas Outflow in an Infrared-bright Dust-obscured Galaxy with Strong Ionized-gas Outflow”, 2018 ASROC Annual Meeting, National Quemoy University, Taiwan (May, 2018)
Y.Toba,, S,Komugi, T.Nagao, T.Yamashita, W-H.Wang, M.Imanishi, A-L.Sun, “ALMA Observation of an IR-bright Dust Obscured Galaxy with Strong Ionized Gas Outflow”, ALMA/45m/ASTE Users Meeting 2017, National observatory of Japan, Japan (December, 2017)
Y.Toba*, “An extremely luminous Dust-Obscured Galaxy discovered by the optical to millimeter observations”, TTTT Seminar, NTHU, Taiwan (December, 2017) [Invited]
Y.Toba*, H-J Bae, T.Nagao, J-H Woo, W-H Wang, A Y. Wagner, A-L Sun, Y-Y Chang, “Ionized Gas Outflows in Infrared-bright Dust-obscured Galaxies Selected with WISE and SDSS”, East-Asia AGN Workshop 2017, Kagoshima University, Japan (December, 2017)
Y.Toba*, “Dust-free quasars in the early Universe selected with HSC and MIRI/JWST”, HSC-AGN face-to-face meeting 2017, The University of Tokyo, Japan (December, 2017)
Y.Toba*, “Ionized Gas Outflows in Infrared-bright Dust-obscured Galaxies (DOGs) at 0 < z < 1”, The East Asian Young Astronomers Meeting 2017, Ishigaki Island, Japan (November, 2017)
Y.Toba*, “Search for extremely-luminous infrared galaxies ~follow up observations with SCUBA-2/JCMT and SMA~”, ASIAA lunch talk, ASIAA, Taiwan (July, 2017)
Y.Toba*, T.Nagao, W-H.Wang, H.Matsuhara, M.Akiyama, T.Goto, Y.Koyama, Y. Ohyama, I.Yamamura , “Stellar mass and star formation rate relation of infrared-bright dust-obscured galaxies selected with IRAS and AKARI far-infrared all-sky survey”, 2017 Asian-Pacific Regional IAU Meeting, the International Convention Center (Taipei), Taiwan (July, 2017)
Y.Toba*, “Clustering properties of infrared bright dust-obscured galaxies selected with HSC and WISE”, The 6th Subaru International Conference, Hiroshima, Japan, (December, 2016)
Y.Toba*, “Search for Hyperluminous Infrared Dust-obscured Galaxies Selected with WISE and SDSS”, East-Asia AGN workshop 2016 , SNU, Seoul, (September, 2016)
Y.Toba*, “Dust Obscured Galaxies viewed with Subaru Hyper Suprime-Cam”, ASIAA Colloquium, ASIAA, Taiwan (June, 2016)
Y.Toba*, “Statistical properties of Dust Obscured Galaxies revealed by HSC-SSP data with infrared data”, NTHU Astronomy Colloquium, NTHU, Taiwan (April, 2016) [Invited]
Y.Toba*, “Clustering properties of IR-bright dust-obscured galaxies viewed with HSC and WISE”, HSC collaboration meeting 2016, IPMU, Japan, (August, 2016)
Y.Toba*, “Statistical Properties of Dust Obscured Galaxies discovered by HSC, VIKING, and WISE”, Subaru Users’ Meeting FY2015, Shizuoka, Japan, (January, 2016)
Y.Toba*, T.Nagao, M.Kajisawa, Y.Matsuoka, “Clustering properties of IR-bright DOGs discovered by HSC, VIKING, and WISE”, HSC collaboration meeting 2016, ASIAA, Taiwan (January 2016)
Y.Toba*, “Progress report and future plan of studies on Dust Obscured Galaxies”, HSC/AGN Conference, Kagoshima, Japan, (December, 2015)
Y.Toba*, “IR Luminosity function and luminosity density of the IR bright Dust Obscured Galaxies newly discovered by the Hyper Suprime-Cam on Subaru Telescope”, Demographics and environment of AGN from multi-wavelength surveys, Chania, Greece (September, 2015)
Y.Toba*, T.Nagao, M.A.Strauss,and HSC DOGs team, “Early science result from AGN WG (Hyper-luminous Dust Obscured Galaxies discovered by the Hyper Suprime-Cam on Subaru and WISE)”, HSC collaboration meeting, Princeton, USA (July, 2015)
Y.Toba*, T.Nagao, M. A. Strauss, K.Aoki, T. Goto, M.Imanishi, T.Kawaguchi, Y.Terashima, Y.Ueda, K.Bundy, H.Inami, Y.Komiyama, R H.Lupton, H.Matsuhara, Y.Matsuoka, T.Morokuma, N.Oi, M.Onoue, S.Oyabu, P.Price, “Hyper-luminous Dust Obscured Galaxies discovered by the Hyper Suprime-Cam on Subaru and WISE”, East-Asia AGN Workshop 2015, Changchun, China (July, 2015)
Y.Toba, T.Nagao, M.A Strauss, K.Aoki, T.Goto, M.Imanishi, T.Kawaguchi, Y.Terashima, Y.Ueda, H.Inami, H.Matsuhara, N.Oi, S.Oyabu, “Hyper-luminous Dust Obscured Galaxies discovered by the Hyper Suprime-Cam on Subaru Telescope and WISE”, Unveiling the AGN-galaxy evolution connection, Puerto Varas, Chile, (March, 2015)
Y.Toba*, T.Nagao, M.A Strauss, K.Aoki, T.Goto, M.Imanishi, T.Kawaguchi, Y.Terashima, Y.Ueda, H.Inami, H.Matsuhara, N.Oi, S.Oyabu, “Photometric properties of IR bright Dust Obscured Galaxies”, Evolution of SMBHs with HSC: First results from initial dataset, ASIAA, Taipei, Taiwan (December, 2014)
Y.Toba*, “Luminosity and Redshift Dependence of the Covering Factor of Active Galactic Nuclei viewed with WISE and Sloan Digital Sky Survey”, Friday Lunchtime Astronomy Talks, Durham University, U.K. (July, 2014) [Invited]
Y.Toba, T.Nagao, Y.Terashima, Y.Ueda, S.Oyabu, H.Matsuhara, N.Oi, T.Goto, M.Imanishi, K.Aoki, T.Kawaguchi, H.Inami, M.Strauss, “Search for “growing up BHs” in the Dust Obscured Galaxies at z~2”, Quasar science with HSC: Toward the first results, ASIAA, Taipei (January, 2014)
Y.Toba*, S.Oyabu, H.Matsuhara, M.Malkan, P.Gandhi, T.Nakagawa, N.Isobe, M.Shirahata, N.Oi, Y.Ohyama, S.Takita, C.Yamauchi, K.Yano, “Luminosity and redshift dependence of covering factor of dust torus viewed with WISE and SDSS”, EAST-ASIA AGN WORKSHOP 2013, Hokkaido, Japan (September, 2013)
Y.Toba, “Search for dust-free quasars at z > 6 using SPICA MCS photometry”, SPICA Science Conference 2013 From Exoplanets to Distant Galaxies:SPICA’s New Window on the Cool Universe, Tokyo, Japan (June, 2013)
Y.Toba*, S.Oyabu, D.Ishihara, H.Matsuhara, T.Wada, S.Takita, Y.Ohyama, M.Malkan, “Luminosity and redshift dependence of covering factor of dust torus viewed with AKARI and WISE”, Torus Workshop 2012, University of Texas, San Antonio, USA (December, 2012)
Y.Toba, S.Oyabu, H.matsuhara, M.Malkan, D.Ishihara, T.Wada, Y.Ohyama, S.Takita, C.Yamauchi, “The mid-infrared Luminosity Function of Galaxies with AKARI to WISE”, AGN Workshop 2012 in Jeju, Korea, (September, 2012)
Y.Toba*, S.Oyabu, H.Matsuhara, D.Ishihara, T.Wada, Y.Ohyama, H.Kataza, M.Malkan, S.Takita, “The Mid-Infrared Luminosity Function of Galaxies using AKARI mid-infrared All-Sky Survey Catalogue”, The Second AKARI Conference: A Panoramic View of the Dusty Universe, Jeju, Korea (February, 2012)
Y.Toba, S.Oyabu, H.Matsuhara, M.Malkan, D.Ishihara, T.Wada, H.Kataza, Y.Ohyama, S.Takita, “The Mid-Infrared luminosity function of galaxies using the AKARI mid-infrared All-Sky Survey Catalogue”, IAU Symposium 284 The Spectral Energy Distribution 2011, University of Central Lancashire, Preston, UK (September, 2011)
Y.Toba, S.Oyabu, D.Ishihara, H.Matsuhara, T.Wada, Y.Ohyama, M.Malkan, “The optical spectrum classification of mid-infrared excess sources found by AKARI All-Sky Survey”, The first year of MAXI 4th Work Shop, Aoyama, Tokyo, Japan (December, 2010)
Y.Toba, S.Oyabu, H.Matsuhara, D.Ishihara, T.Wada, Y.Ohyama, H.Kataza, S.Takita, “Search for Active Galactic Nuclei by using AKARI mid-infrared All-Sky Survey Catalogue”, JSPS Summer Program 2010, Kanagawa, Japan (June, 2010)
Yoshiki Toba*, Teng Liu, Tanya Urrutia, Mara Salvato, Junyao Li, Yoshihiro Ueda, and eROSITA–HSC AGN collaboration, “The eROSITA Final Equatorial-Depth Survey (eFEDS): A multiwavelength view of WISE mid-infrared galaxies/active galactic nuclei”、日本天文学会 秋季年会、新潟大学 (2022年9月)
Yoshiki Toba*, Marcella Brusa, Teng Liu, Johannes Buchner, Yuichi Terashima, Tanya Urrutia, Mara Salvato, and eROSITA-HSC AGN collaboration, “eROSITA view of an extremely infrared-luminous AGN at z = 1.87″、日本天文学会 春季年会、zoomによるweb会議 (2022年3月)
Yoshiki Toba*, Yoshihiro Ueda, Poshak Gandhi, Claudio Ricci, Denis Burgarella, Veronique Buat, Tohru Nagao, Shinki Oyabu, Hideo Matsuhara, Bau-Ching Hsieh, “How does the polar dust affect the correlation between dust covering factor and Eddington ratio in type 1 quasars selected from the SDSS DR16?”、日本天文学会 秋季年会、zoomによるweb会議 (2021年9月)
Yoshiki Toba*, Tomotsugu Goto, Nagisa Oi, Ting-Wen Wang Seong Jin Kim, Simon C.-C. Ho, and the AKARI-NEP team, “Search for Optically Dark Infrared Galaxies without Counterparts of Subaru Hyper Suprime-Cam in the AKARI North Ecliptic Pole Wide Survey Field, 日本天文学会 春季年会、zoomによるweb会議 (2021年3月)
Yoshiki Toba*, Takuji Yamashita, Tohru Nagao, Wei-Hao Wang, Yoshihiro Ueda, Kohei Ichikawa, WERGS project, “A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). II. Physical Properties derived from the SED Fitting with Optical, Infrared, and Radio Data”, 日本天文学会 秋季年会、熊本大学 (2019年9月)
Yoshiki Toba*, Tohru Nagao, Wei-Hao Wang, Hideo Matsuhara, Masayuki Akiyama, Tomotsugu Goto, Yusei Koyama, Youich Ohyama, Issei Yamamura, “Stellar mass and star formation rate relation of infrared-bright dust-obscured galaxies selected with AKARI far-infrared all-sky survey”、 日本天文学会 春季年会、九州大学（2017年3月）
Yoshiki Toba*, Tohru Nagao, Masaru Kajisawa, Taira Oogi, Hiroyuki Ikeda, Wei-Hao Wang, Hideo Matsuhara, HSC-DOGs project member, “Two-point angular correlation function of Dust Obscured Galaxies discovered by HSC and WISE”、 日本天文学会 秋季年会、愛媛大学（2016年9月）
鳥羽儀樹*、「Introduction to Infrared-bright dust-obscured galaxies (DOGs) ~Statistical properties revealed by Subaru/HSC and WISE~ 」、速報セミナー、北海道大学（2017年1月）[依頼講演]
鳥羽儀樹*、「HSC-SSP view of Dust Obscured Galaxies」、銀河進化研究会2016、東北大学 (2016年6月)
Y.Toba*, “Luminosity and Redshift Dependence of the Covering Factor of the Dust Torus in Active galactic Nuclei Revealed by Infrared Observations with AKARI and WISE”, LIRA Colloquium, ISAS/JAXA (2014年2月）