Background
Dekel, Avishai was born on January 13, 1951 in Jerusalem, Israel. Son of Yehuda and Nehama Dekel.
astrophysicist cosmologist educator physicist
Dekel, Avishai was born on January 13, 1951 in Jerusalem, Israel. Son of Yehuda and Nehama Dekel.
Professor Dekel got his Doctor of Philosophy from the Hebrew University in 1980, and was a research fellow at Caltech and an assistant professor at Yale University before joining the faculty of The Hebrew University in 1986.
He is performing research in astrophysics and cosmology. He served as the Head of The Racah Institute of Physics (1997–2001), the Dean of the Authority for the Community and Youth at The Hebrew University (2005–2011), and the President of the Israel Physical Society (2008-2011). Dekel is a frequent visitor to the University of California, Santa Cruz, as well as to other leading universities in the United States and Europe.
Among other professional honors, he has been awarded a Miller professorship at University of California Berkeley, a Blaise Pascal International Chair of Research by the École Normale Supérieure in Paris (2004-2006), and a Lagrange fellowship in International Association of Prosecutors Paris (2015-2016).
Dekel is known for his contributions to research in cosmology, especially the study of the formation of galaxies and large-scale structure in the Universe, which is dominated by dark energy and dark matter. He is most well known for the understanding of dwarf galaxies and supernova feedback (1986, 2003), for the analysis of large-scale cosmic flows and the early estimates of fundamental cosmological parameters (1989-2001), for the studies of the structure of dark-matter galactic halos (2000–2003), and for his contributions to central issues in the theory of galaxy formation (2003–2012).
His recent research focuses on galaxy formation in its most active phase at the early universe, using analytic models and state-of-the-art computer simulations. He is studying how continuous streams of cold gas and merging galaxies from the cosmic web lead to star-forming disks and drive violent gravitational disk instability, and how this instability leads to the formation of compact spheroidal galactic components with central massive black holes.
He headed the university computing committee, was a member of the executive committee of the board of trustees and a member of the standing committee of The Hebrew University.
Married Zippora Dekel, 1971. Children: Ofer, Amir.