Our research is focused on observational astrophysics:
* Cosmic transients and explosions:
Studying the catastrophic deaths of stars, utilizing the most advanced robotic
wide-field sky surveys, world-wide ground and space-based facilities.
Huge amounts of energy are released within hours in events so bright they are seen from the edge of the
Universe. The resulting extreme physical conditions involve huge densities, pressures and temperatures, strong magnetic
fields, nuclear and high energy particle reactions, and strong relativistic effects (special and general). These topics
are at the forefront of research in high energy particle astrophysics and gravity theories, with diverse implications
from the sources of life to cosmology.
Design and construction of astronomical instruments and
instrumental concepts. Among our instrumental projects: the W-FAST Schmidt telescopes designed to search for and
characterize small bodies in the Kuiper belt and Oort cloud, imaging multiplexer prototypes, high throughput
spectrographs for large facilities and a planned wide-field UV space explorer.
* Astronomical algorithms:
Development of efficient and optimal algorithms for research. Examples include: the fast de-dispersion measure
transform, streak detection using the fast Radon transform, image coaddition and subtraction.
Avishay Gal-Yam, Group Head
Working on cosmic explosions, their origins, physics, and how they shape our Universe, from elements to form planets, to the geometry and final fate of the cosmos.
Studying various types of core-collapse SNe, with emphasis on pair instability candidates
and 'Flash-spectroscopy' events - SNe that are caught and followed up within hours from explosion.
Developing and maintaining the TNS
David Polishook, Scientific Director of the WIS Observatories
Using time variable observations to derive lightcurves, spin and shape parameters of asteroids, with reflectance spectra in visible and near-IR, in order to study asteroids' physical nature, evolution and the mechanisms acting on them.
Working on Baryon Acoustic Oscillations and star/galaxy separation in large galaxy surveys (such as the Dark Energy Survey). Investigating the potential of studying exoplanetary systems with the ULTRASAT mission.
Studying light curve structures of infant Type II SNe and their early spectra, looking for Flash Ionization features.
Working on the optical assembly of SoXs, the next spectrograph of the NTT in Chile.
Studied stripped interacting core collapse SNe (Type Ibn) and worked on relative astrometry.
Yifat Dzigan, Former Post-Doc
Conducted and analyzed the first all-sky high resolution H-alpha survey, with emphasis on measuring the SFR in the local universe.
Assaf Sternberg, Former Post-Doc
Worked on type Ia supernovae, mainly the analysis of high resolution spectra in search for evidence of circumstellar material that might shed some light on the progenitor system of this type of supernova.
Department of Astronomy Faculty of Mathematics University of Belgrade
Adam B. Becker, Visitor
Department of Astronomy University of California Berkeley, CA
Raphael Scheps, Visitor
King's College University of Cambridge
Stefan Andjelkovic, Visitor
Faculty of Physics University of Belgrade
Arazi Pinhas, Visitor
Department of Physics and Astronomy University of Pennsylvania and University of Oxford
Nir Magrafta, Visitor
Atid High School for Science
Pavan Bilgi, Visitor
Department of Astronomy California Institute of Technology
We encourage outstanding students who are interested in observational astrophysics and in participating in
cutting edge projects and international collaborations to contact us and apply for graduate studies.
Post-docs interested in joining our group are clearly most welcome to contact as well.