VLBI – What can we do at the highest resolutions?

Colloquium Astronomy Colloquium (2016 Fall Semester) * Date Nov. 3 * Speaker Jeffrey Hodgson (KASI) * Title VLBI – What can we do at the highest resolutions? * Abstract   Very Long Baseline Interferomatry is a technique that has long been used to achieve extremely high angular resolution. With telescopes such as the Event Horizon […]

The Birth of High-energy Neutrino Astronomy

Colloquium Astronomy Colloquium (2016 Fall Semester) * Date Nov. 10 * Speaker Carsten Rott (Sungkyunkwan University) * Title The Birth of High-energy Neutrino Astronomy * Abstract   IceCube recently reported the observation of high-energy astrophysical neutrinos, which marks the beginning of the age of neutrino astronomy.Neutrinos open up a new window to the universe, which […]

Young protostellar discs and their role in planet formation and evolution

Colloquium Astronomy Colloquium (2016 Fall Semester) * Date Nov. 17 * Speaker Dimitris Stamatellos (University of Central Lancashire) * Title Young protostellar discs and their role in planet formation and evolution * Abstract   Stars are born with protostellar discs that during the initial stages of their formation are relatively massive, asymmetric and they are […]

Study of galaxies in extensive area of the Virgo cluster

Colloquium Astronomy Colloquium (2016 Fall Semester) * Date Nov. 24 * Speaker Suk Kim (KASI) * Title Study of galaxies in extensive area of the Virgo cluster * Abstract     We present a new catalog of galaxies in the wider region of the Virgo cluster, based on the Sloan Digital Sky Survey (SDSS) Data […]

Statistical analyses of the dynamics of elliptical galaxies from SDSS: dark matter versus modified Newtonian dynamics

Colloquium Astronomy Colloquium (2016 Fall Semester) * Date Dec. 2 * Speaker Kyu-Hyun Chae (Sejong University) * Title Statistical analyses of the dynamics of elliptical galaxies from SDSS: dark matter versus modified Newtonian dynamics * Abstract     Dark matter appears inevitablefor explaining the observed kinematics of galaxies, galaxy clusters, and thewhole Universe. Gravitational (both […]

Formation and Evolution of Circumstellar Disks

Colloquium Astronomy Colloquium (2016 Fall Semester) * Date Dec. 13 * Speaker Kengo Tomida (Osaka University) * Title Formation and Evolution of Circumstellar Disks * Abstract   Angular momentum transport by magneticfields is the key physical process in star and disk formation processes.Non-ideal magnetohydrodynamic effects such as Ohmic dissipation and ambipolardiffusion extract magnetic flux and […]

Herschel and Millimeter Observations of Supernova Remnants

Colloquium Astronomy Colloquium (2016 Fall Semester) * Date Dec. 19 * Speaker Jeonghee Rho (SETI Institute and NASA Ames Research Center) * Title Herschel and Millimeter Observations of Supernova Remnants * Abstract   Supernovae (SNe) are among the mostviolent events in the Universe, ejecting gas on galactic scales and returningmaterial from dense molecular clouds into […]

The ongoing LIGO search for gravitational-waves: BH-BH modeling

Colloquium Astronomy Colloquium (2017 Spring Semester) * Date Mar 02 * Speaker Chris Belczynski (Warsaw University Observatory) * Title The ongoing LIGO search for gravitational-waves: BH-BH modeling * Abstract   Advanced LIGO has so far announced detection of two firm and one candidate of black hole — black hole (BH-BH) mergers. More detections are expected […]

When the Sun’s Coronal Tail Wags Its Photospheric Dog

Colloquium Astronomy Colloquium (2017 Spring Semester) * Date Mar 09 * Speaker Jeongwoo Lee (Institute for Space-Earth Environmental Research, Nagoya University) * Title When the Sun’s Coronal Tail Wags Its Photospheric Dog * Abstract   The Sun’s corona is an electrically conducting fluid embedded in strong magnetic fields. It is a general belief that solar […]