The quest of measuring star-formation histories to elucidate the first galaxies

Colloquium Astronomy Colloquium (2021 Fall Semester) * Date Oct 21 * Speaker Prof. Sandro Tacchella(UNIST) * Title The quest of measuring star-formation histories to elucidate the first galaxies * Abstract     The last great unknown of the cosmic history is when, why and how the first galaxies formed after the Big Bang. These galaxies […]

Active Galactic Nuclei in the Multi-messenger Era

Colloquium Astronomy Colloquium (2021 Fall Semester) * Date Oct 28 * Speaker Dr. Bindu Rani(KASI) * Title Active Galactic Nuclei in the Multi-messenger Era * Abstract     An exciting discovery made by space- and ground-based high-energy missions is the detection of gamma-rays from over 3,000 Active Galactic Nuclei. Despite their intensive study, the location […]

Origins of Ultra-Diffuse Galaxies

Colloquium Astronomy Colloquium (2021 Fall Semester) * Date Nov 04 * Speaker Dr. Sungsoon Lim(Yonsei University) * Title Origins of Ultra-Diffuse Galaxies * Abstract     Ultra-diffuse galaxies (UDGs) are unusual populations, having luminosities comparable to classical dwarf galaxies but size more like the Milky Way. After the discovery of a sizable UDGs in the […]

Cosmology with high (z>1) redshift galaxy surveys

Colloquium Astronomy Colloquium (2021 Fall Semester) * Date Nov 11 * Speaker Prof. Donghui Jeong(Penn State University) * Title Cosmology with high (z>1) redshift galaxy surveys * Abstract     Thanks to various observation campaigns over the past two decades, we have determined the most concordance Lambda-CDM cosmology parameters to sub-percent precision. The precision, however, […]

Hubble Space Telescope observations of interstellar comet 2I/Borisov

Colloquium Astronomy Colloquium (2021 Fall Semester) * Date Nov 18 * Speaker Dr. Yoonyoung Kim(Technical University Braunschweig (Germany)) * Title Hubble Space Telescope observations of interstellar comet 2I/Borisov * Abstract     Comet 2I/Borisov (2I) is the first known interstellar comet and only the second interstellar object identified in the solar system. It likely originated […]

Ultra high resolution radio observations of supermassive black holes and relativistic jets

Colloquium Astronomy Colloquium (2021 Fall Semester) * Date Nov 25 * Speaker Dr. Kazuhiro Hada(NAOJ) * Title Ultra high resolution radio observations of supermassive black holes and relativistic jets * Abstract     Supermassive black holes (SMBH) at the center of active galactic nuclei (AGN) are the most massive compact objects in the universe. They […]

The Northern Extended Millimeter Array

Colloquium Astronomy Colloquium (2021 Fall Semester) * Date Dec 02 * Speaker Dr. Roberto Neri(IRAM (france)) * Title The Northern Extended Millimeter Array * Abstract     NOEMA is the largest millimeter/submillimeter-wave interferometer project of the northern hemisphere. With twelve 15-meter antennas, 2SB receivers with 8 GHz IF per sideband and polarization, and baselines up […]