All research areas

photo AGN

Active Galactic Nuclei

Active Galactic Nuclei (AGNs) are the manifestation of accretion of material onto the supermassive black-holes (from several millions to several billions times the mass of the Sun) found in the centers of galaxies. The result of this accretion is the production of intense radiation over the whole electromagnetic spectrum and often the ejection…

image for Extrasolar Planetary Systems

Extrasolar Planetary Systems

Several thousand planetary systems around other stars have been discovered and characterized around pre-main-sequence and main-sequence stars, encompassing many sub-disciplines such as planet formation, circumstellar disks, dynamics, atmospheric chemistry, demographics, astrobiology, and even the search for techosignatures.  Our focus is on…

NGC 5257 AND NGC 5258

Galaxies

Galaxies are the places where stars form and live their lives. They exhibit a wide variety of morphologies and colours which in general terms reflect their past history. Hence studies of galaxies provide information on the formation of stars over the history of the Universe and the growth of the super-massive black holes residing in their…

Polarimetry

Polarimetry

The Institute of  Astrophysics hosts a world-class center for polarimetric studies of point sources in the optical, featuring cutting-edge, innovative instruments, international collaborations with world-leading groups in Instrumentation, Observations, and Theory, and a wide variety of applications, including studies of extragalactic jets, the…

Medusa SN remnant / IC443

Supernova remnants

Supernova remnants are the end-points of stellar evolution. Their study can reveal information about the latest stages of stellar evolution, nucleosyntesis, physics of shock-waves and the properties of the interstellar medium. Members of our group lead optical studies of individual supernova remnants in our Galaxy, as well as multiwavelength…

HMXRB

X-ray-Binaries

X-ray binaries are stellar systems consisting of a star and a stellar remmant such as black-hole, neutron star or a white dwarf. When material from the star (or donor) is falling onto the stellar remnant (or compact object) it is heated to temperatures of several million degrees and produces copious X-ray emission. In this process we may also…