Kozlovsky, Ben Zion
Prof. Rennan Barkana
Theoretical modeling of the formation and evolution of the first
generation of galaxies.
Theoretical modeling of the reionization of the universe, and
analysis of related observations.
Analysis of observational probes of the properties of dark matter,
including high-redshift galaxies, low-redshift dwarf galaxies, and
gravitational lensing studies.
Prof. Sara Beck
- Star formation:
study the ways stars are formed and how young stars behave and evolve. In
particular the birth of stars in other galaxies, where conditions may be
very different from what we see locally and where star formation may work
extremely rapidly. This study requires observations at wavelengths from
the radio, through the infrared to the optical and sometimes the
ultra-violet, which are carried out at observatories in Israel and abroad.
- Theoretical calculations to derive the astronomical conditions from the
observed data on star-forming galaxies.
- Infrared and radio observations of galaxies that have large numbers of
Wolf-Rayet stars, which are a particularly violent and short-lived stage of
- Star formation in galaxies.
- The nature of UV sources, using data from space missions in
conjunction with ground-based observations.
- The nature of dust particles in other galaxies as a component of
interstellar matter and material for star forming processes.
- Small bodies in the Solar System (meteors, comets and asteroids.
- Astronomical instrumentation for ground and space-based observatories.
Dr. Nuria Castello Mor
Active Galactic Nuclei including:
- Supermassive black hole with high accretion rates modeling
- Studies of the AGN's nature using observations with ground based
and space-based telescope (IR, Optical, UV, and X-ray)
- High resolution X-ray spectroscopy
Dr. Marcella Contini
- Theoretical study of AGNs: Calculate the spectrum of
Seyfert galaxies, Liners, and Starburst galaxies,
by a special computational code,
which consistently accounts for both the photoionizing flux
and the shock.
- The calculation and interpretation of the spectrum of novae and symbiotic stars using SUMA.
- Symbiotic stars: Examination of the light variation
at quiescence and at outburst. The spectral behaviour is studied using
optical data from the Wise and ultraviolet data from
IUE space observations.
The emission lines spectrum is fitted with a model which takes into account
both photoionization and shock processes.
- Preparation for TAUVEX:
Identification of far UV-sources which have been spectroscopically
observed by the CCD at the Florence and George
Dr. Itzhak Goldman
- Astrophysical testing of gravity theories, in particular by means
of pulsar timing data.
- Neutron stars and supernovae.
- Astrophysical turbulence including:
- Accretion Disks models.
- Tidal interaction leading to circularization of close binaries.
- Turbulence in clusters of galaxies.
- Primordial cosmic turbulence.
- Astroparticles: using astrophysical observations to constrain
candidates for dark matter.
Dr. Christopher Irwin
- Supernova and Gamma-Ray Burst Theory
Dr. Shai Kaspi
Studying the nature of AGNs using observations with ground based and
space-based telescope (UV, Optical, and X-ray)
Measuring the black hole mass in Active Galactic Nuclei.
Study of the broad line region in Active Galactic Nuclei.
X-ray study of the quasars at red-shift greater than 4.
High resolution X-ray spectroscopy of Active Galactic Nuclei.
Formation and evolution of galaxies
- Studies of the Nova phenomenon
- The influence of element diffusion on globular clusters
Dr. Alexandra Kozyreva
- Supernova physics
- Stellar evolution
- Study of Gamma Ray radiation from Solar Flares and the implications
to Abundances determination and Acceleration mechanisms.
- Study of Gamma Ray Lines from the Interstellar Medium and the
implications to the Cosmic Rays Physics and the structure of
- Study of Gamma Ray Lines from various 'exotic' objects (e.g.
the center of the Galaxy, Super Nova 1987A, Nova Muscae)
- Study of various problems in Nuclear Astrophysics (e.g
production of light elements by Spallation mechanism and the
relation to Gamma Ray observation)
- Study of the light curve of old classical novae: The long term
photometric behaviour of all known classical novae (in collaboration with
German, American and Chilean collaborators).
- Photometry with high temporal resolution of novae near maximum light.
- Investigation of the nature of Symbiotic stars: Optical and UV photometry
and spectroscopy of Symbiotic stars.
- The WET project:
The Wise Observatory is taking an active part
in the international network of optical observatories entitled the
Whole Earth Telescope. A group of observatories, extending over 6 continents,
are observing together for about 10 or more days one and the same astronomical
object. The distribution of the observing station around Earth, enables a
continuous photometric monitoring of the target object for the entire duration
of such a long period of time. The "temporal spectroscopy" of variable stars
provides observational data on masses and on the
internal structure of stars that have no parallel in any other mode of
High-Energy Astrophysics including:
Studies of the structure and emission of relativistic jets in
galactic and extragalactic black holes, and the application to
gamma ray emission from blazars and X ray transients.
Modeling of gamma-ray bursts.
Studies of the origin of ultra-high energy cosmic rays.
- Astrophysical plasmas: particle acceleration, heat flux
and other instubilities, nonlinear effects in high-radio-brightness
- Molecule formation in astrophysical grains.
- The nature of quasars and active galaxies, using observations with
ground based and space-based telescopes.
- Observational and theoretical study of gravitational lensing
and its use for probing the mass content of the Universe.
- Distant supernovae as tracers of star formation
and element enrichment history. Observational study with the
HST and ground-based telescopes.
High-energy astrophysics including:
- Gamma-ray bursts
- Soft-gamma repeaters
- Relativistic collisionless-shocks
- Particle acceleration and high-energy cosmic rays
- Binary stars:
- Spectroscopic binaries
- Eclipsing binaries
- Mass-ratio distribution of close binaries
- Extra-solar planets
- Photometric search for transiting planets
Prof. Emer. Hagai Netzer
- Spectroscopy of active galaxies and quasars: UV, Optical, X-ray and IR
- Active galaxies and quasars modeling: photoionized gas, accretion disks
and mass outflow
- Mass, metalicity and accretion rate in active galaxies: following the
cosmic evolution and the starburst connection
- Infrared properties of active and Ultra Luminous Infrared Galaxies
- X-ray properties of active and Ultra Luminous Infrared Galaxies (Chandra,
TAUVEX: Study of the ultraviolet universe (an Israel-Indian collaboration)
- Observation and study of supernovae of the different kinds, thermonuclear
or core-collapse, nearby or far away, known or predicted.
- The use of supernovae as cosmological probes and as tracers of stellar
Harnessing modern computational capabilities to extract knowledge in the
nascent field of synoptic transient surveys.
Study of cosmic dust and
the interstellar medium via analysis of massive spectroscopic data.
- Study of CMB anisotropy induced by gas in clusters of galaxies.
- Theory of the Sunyaev-Zeldovich effect.
- Non-thermal phenomena in clusters of galaxies.
- Mass distributions in clusters of galaxies.
- X-ray emission from starburst galaxies.
Dr. Sharon Sadeh
- Cosmic microwave background
- Cosmic microwave background and cosmological parameter estimation
- The Sunyaev-Zeldovich effect and its cosmological applications
- Beam systematics and their impact on CMB observations
Dr. Chandra B. Singh
- Black hole accretion-ejection phenomena:
simulations, relativistic fluid hydrodynamics and magnetohydrodynamics,
dynamics of relativistic jets
- The Interstellar Medium.
- Molecular Astrophysics.
- Star Formation.
- Active Galaxies.
- Galaxy Formation.
- Millimeter-wave through IR spectroscopy.