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Wise Observatory

Welcome to the

Star Destroyers
Research Group

Studying supernovae, tidal disruption events, neutron-star mergers, and other energetic transients through multi-wavelength observations at Tel Aviv University
 

Team

The Team

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Iair ("ya-eer") Arcavi

PI

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Rachel Bruch

Postdoc

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Ido Keinan

MSc Student

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Tom Ben-Ami

Research Assistant

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Noi Shitrit

PhD Student

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Yael Dgany

MSc Student

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Sondos Mohsen

PhD Student

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Tomer Katz

MSc Student

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Sara Faris

PhD Student

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Shahar Bracha

Research Assistant

Research

The Research

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Massive Stars & Their Supernovae

We study the evolution of massive stars and their explosive deaths as supernovae. We do this by obtaining very early observations of supernovae (hours to days after explosion), finding and studying rare events, developing a framework to model their light curves, developing a method to perform asteroseismology of massive stars from the ground, and creating MESA models that can be compared to observations.

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Tidal Disruption Events

 

We study stars that get torn apart by supermassive black holes in the centers of galaxies. We do this by searching the transient alert streams for events in galaxy centers, systematically classifying them, and following and studying those that that turn out to be real tidal disruption events. We compare our observations to models to try and map the diversity of the population and to constrain their emission physics.

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Kilonovae & Peculiar Transients

We study the electromagnetic counterparts to gravitational-wave events (namely, binary neutron-star mergers, and hopefully soon, mergers of neutron stars with black holes by rapidly following their alerts in real time, and by searching for rapidly-evolving (and other peculiar) transients in optical surveys. We are also developing tools to help the community coordinate their search for gravitational-wave counterparts. 

Feature Name

Feature Name

Feature Name

Tools

The Tools

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Las Cumbres Observatory

Las Cumbres Observatory is a unique global network of robotic telescope ideal for real-time dynamically-scheduled observations. It allows us to trigger followup of transient events instantly, to conitnue monitoring them regularly in the long term, to observe events continuously as the earth rotates, and to do all of this programmatically.

More information

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BlackGEM

 

BlackGEM is a novel transient survey at La Silla Observatory in Chile, designed for high-cadence observations of transients and for gravitational-wave followup. It consists of three 65cm telescopes, each with a 2.7 square degree field of view. The project is led by NOVA (the Netherlands Research School for Astronomy), Radboud University in the Netherlands, and KU Leuven in Belgium.

More information

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SoXS

Son of X-Shooter (SoXS) is a medium-resolution high‐efficiency spectrograph for the ESO New Technology Telescope at the La Silla Observatory in Chile. It will have simultaneous wavelength coverage from the 3500 Angstrom to 2 microns, and the majority of its time will be dedicated to classifying and characterizing transient events. The project is led by INAF in Italy.

More information

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ULTRASAT

 

The Ultraviolet Transient Astronomy Satellite (ULTRASAT) will be a 200 square-degree field of view ultraviolet imager. It will detect supernova shock breakout, the early emission from neutron-star mergers, tidal disruption events and more. The project is led by the Weizmann Institute in Israel.

More information

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LS4

The La Silla Schmidt Southern Survey (LS4) is a transient survey at La Silla Observatory in Chile designed to systematically search the southern skies for transients of all types. It is being led by the Lawrence Berkely National Laboratory in California.

More information

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The Gravitaional-Wave Treasure Map

The gravitaional-wave Treasure Map is a web-based tool to help the community coordinate followup of gravitational-wave events in real time. It allows anyone to share their telescope pointings, view the pointings reported by others, and visualize the search on an interactive map.

More information

Former Group Members

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Cristina Barbarino

Former Postdoc

Moved to the private sector

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Lydia Makrygianni

Former Postdoc

Moved to Lancaster University

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Ayelet Hasson

Former Undergraduate Research Assistant

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Marco Lam
Former Postdoc

Moved to the University of Edinburgh

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Avishai Gilkis

Former Postdoc

Moved to the University of Cambridge

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Yuval Beth-Din

Former Undergraduate Research Assistant

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Wenxiong Li
Former Postdoc

Moved to the Chinese National Astronomical Observatories

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Danielle Gov

Former Undergraduate Research Assistant

Moved to the Weizmann Institute

Former Group Members

Contact

arcavi @ tauex . tau . ac . il

Contact
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