455 citations
- Seoul National UniversityKR86 papers
- Korea Astronomy and Space Science InstituteKR24 papers
- Institute for Basic ScienceKR16 papers
- Princeton UniversityUS11 papers
- Korea Institute for Advanced StudyKR8 papers
- Center for Theoretical PhysicsPL7 papers
- University of California, IrvineUS7 papers
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- Institute of Astronomy and Astrophysics, Academia SinicaTW6 papers
- Institute of Space and Astronautical ScienceJP5 papers
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- Jet Propulsion LaboratoryUS5 papers
15 papers · 1 filter
Comparison of The UV and Optical Fe II Emission in Type 1 AGNs
Huynh Anh N. Le, Jong-Hak Woo
We present the kinematical properties of the UV and optical \FeII\ emission gas based on the velocity shift and line width measurements of a sample of 223 Type 1 active galactic nu…
Medium-band Photometry Reverberation Mapping of Nearby Active Galactic Nuclei
Joonho Kim, Myungshin Im, Changsu Choi +1
Reverberation mapping (RM) is one of the most efficient ways to investigate the broad-line region around the central supermassive black holes of active galactic nuclei (AGNs). A co…
Evolution of the Deterministic Collapse Barrier of the Field Clusters as a Probe of Cosmology
Suho Ryu, Jounghun Lee
The collapse barrier, , of the field clusters located in the low-density environment is deterministic rather than diffusive, unlike that of the wall counterparts located in…
The Observational Evidence for the Internal Excitation of Sunspot Oscillations Inferred from the Fe I 5435 A Line
Kyuhyoun Cho, Jongchul Chae, Eun-kyung Lim +1
The umbral oscillations of velocity are commonly observed in the chromosphere of a sunspot. Their sources are considered to be either the external p-mode driving or the internal ex…
High Star Formation Rates of Low Eddington Ratio Quasars at
Yongjung Kim, Myungshin Im
Recent simulation studies suggest that the supermassive black hole (SMBH) growth in the early universe may precede the prolonged intense star formation within its host galaxy, inst…
The Physical Nature of Spiral Wave Patterns in Sunspots
Juhyung Kang, Jongchul Chae, Valery M. Nakariakov +3
Recently, spiral wave patterns (SWPs) have been detected in 3 minute oscillations of sunspot umbrae, but the nature of this phenomenon has remained elusive. We present a theoretica…