M
Marios Karouzos
Researcher at Seoul National University
Publications - 85
Citations - 2148
Marios Karouzos is an academic researcher from Seoul National University. The author has contributed to research in topics: Active galactic nucleus & Galaxy. The author has an hindex of 25, co-authored 85 publications receiving 1888 citations. Previous affiliations of Marios Karouzos include Max Planck Society & Springer Science+Business Media.
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Journal ArticleDOI
A swirling jet in the quasar 1308+326
Silke Britzen,Shan-Jie Qian,Wolfgang Steffen,Emma Kun,Marios Karouzos,Marios Karouzos,László Á. Gergely,J. Schmidt,M. F. Aller,Hugh D. Aller,Marita Krause,Christian Fendt,Markus Böttcher,A. Witzel,Andreas Eckart,Andreas Eckart,Lydia Moser,Lydia Moser,Lydia Moser +18 more
TL;DR: In this article, the authors investigated the very long baseline interferomety (VLBI) morphology and kinematics of the jet of the quasar 1308+326 to understand the physical nature of this jet and jets in general, the role of magnetic fields, and the causal connection between jet features and the launching process.
Journal ArticleDOI
The Infrared Medium-deep Survey. VIII. Quasar Luminosity Function at z ~ 5
Yongjung Kim,Yongjung Kim,Myungshin Im,Yiseul Jeon,Minjin Kim,Soojong Pak,Minhee Hyun,Yoon Chan Taak,Suhyun Shin,Gu Lim,Gregory S. H. Paek,Insu Paek,Linhua Jiang,Changsu Choi,Jueun Hong,Tae Geun Ji,Tae Geun Ji,Hyunsung David Jun,Marios Karouzos,Dohyeong Kim,Dohyeong Kim,Dohyeong Kim,D.-J. Kim,Jae-Woo Kim,Ji-Hoon Kim,Hye In Lee,Hye In Lee,Seong Kook Lee,Won Kee Park,Yongmin Yoon,Seoyeon Byeon,Seoyeon Byeon,Sungyong Hwang,Joonho Kim,S. B. Kim,Woojin Park,Woojin Park +36 more
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Evolution of mid-infrared galaxy luminosity functions from the entire AKARI NEP deep field with new CFHT photometry
Tomotsugu Goto,Nagisa Oi,Youichi Ohyama,Matthew A. Malkan,Hideo Matsuhara,Takehiko Wada,Marios Karouzos,Myungshin Im,Takao Nakagawa,V. Buat,Denis Burgarella,Chris Sedgwick,Yoshiki Toba,Woong-Seob Jeong,Lucia Marchetti,Katarzyna Małek,Ekaterina Koptelova,Dani Chao,Yi Han Wu,Chris Pearson,Chris Pearson,Chris Pearson,Toshinobu Takagi,Hyung Mok Lee,Stephen Serjeant,Tsutomu T. Takeuchi,Seong-Jin Kim +26 more
TL;DR: In this paper, infrared luminosity functions (LFs) in the AKARI NEP deep field were obtained using recently-obtained, wider Canada-France-Hawaii Telescope (CFHT) optical/near-IR images.
Journal ArticleDOI
Calibration and LIMITATIONS of the Mg II line-based BLACK HOLE MASSES
Jong-Hak Woo,Huynh Anh N. Le,Marios Karouzos,Dawoo Park,Daeseong Park,Matthew A. Malkan,Tommaso Treu,Vardha N. Bennert +7 more
TL;DR: In this article, the authors presented the single-epoch black hole mass (M$_{\rm BH}$) calibrations based on the rest-frame UV and optical measurements of Mg II 2798\AA and H$\beta$ 4861\AA lines and AGN continuum, using a sample of 52 moderate-luminosity AGNs at z$\sim$0.4 and z$ \sim$ 0.6 with high-quality Keck spectra.
Journal ArticleDOI
The Infrared Medium-deep Survey. IV. Low Eddington Ratio of A Faint Quasar at $z\sim6$: Not Every Supermassive Black Hole is Growing Fast in the Early Universe
Yongjung Kim,Myungshin Im,Yiseul Jeon,Minjin Kim,Minhee Hyun,Dohyeong Kim,Jae-Woo Kim,Yoon Chan Taak,Yongmin Yoon,Changsu Choi,Jueun Hong,Hyunsung David Jun,Marios Karouzos,Duho Kim,Ji-Hoon Kim,Seong-Kook Lee,Soojong Pak,Won-Kee Park +17 more
TL;DR: In this article, the authors obtained a deep near-infrared (NIR) spectrum of a quasar, IMS J2204+0112, which is one of the faintest quasars that have been identified at $z\sim6$ from the redshifted C IV emission line in the NIR spectrum.