The Physical Properties of Luminous Infrared Galaxies
by Prof. Vassilis Charmandaris (University of Crete - Greece)
Prof. Vassilis Charmandaris (University of Crete, Greece) gave a special lecture at SCASS on Feb. 07, 2019. The lecture was about the "Physical Properties of Luminous Infrared Galaxies." Prof. Vassilis explained that luminous infrared galaxies or LIRGs are galaxies with luminosities – the measurement of brightness – above 1011 that of the Sun. They are also referred to as submillimeter galaxies (SMGs) through their normal method of detection. LIRGs are more abundant than starburst galaxies, Seyfert galaxies and quasi-stellar objects at comparable luminosity. Infrared galaxies emit more energy in the infrared than at all other wavelengths combined. A LIRG's luminosity is 100 billion times that of our Sun.
SCASS's research assistants as well as students from the University of Sharjah attended the lecture. Prof. Vassilis also visited the main facilities of SCASS including the Planetarium, Space Exhibitions, and the Research Laboratories. During the visit, both sides had a discussion regarding strengthening collaboration with the University of Crete in the domain of astrophysics.
Dr. Charmandaris completed his undergraduate studies in Physics at the University of Thessaloniki. He continued his graduate studies in the US and obtained his Ph.D. in Astrophysics at Iowa State University. After a postdoctoral fellowship with the ISO/CAM group at the Astrophysics section of CEA/Saclay (France), he was awarded a Marie Curie fellowship at the Millimeter and Infrared Department (DEMIRM) at the Observatoire de Paris, in Paris (France). In 1999, he moved back to the US and spent 6 years at the Astronomy Department of Cornell University. There he worked with the group who developed the Infrared Spectrograph of the Spitzer Space Telescope, which was launched by NASA in August 2003. In February 2005, Dr. Charmandaris joined the faculty of the Department of Physics of the University of Crete, and he is currently a Professor of Observational Astrophysics. In September 2013, he commenced his appointment as the Director of the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing (IAASARS) of the National Observatory of Athens.