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Kozai cycles, tidal friction and the dynamical evolution of binary minor planets
Hagai B. Perets, Smadar Naoz
In recent years many binary minor planets (BMPs) have been discovered in the Solar system. Many models have been suggested for their formation, but these encounter difficulties exp…
Detecting Early Galaxies Through Their 21-cm Signature
Smadar Naoz, Rennan Barkana
New observations over the next few years of the emission of distant objects will help unfold the chapter in cosmic history around the era of the first galaxies. These observations…
An Observational Limit on the Earliest GRBs
Smadar Naoz, Omer Bromberg
We predict the redshift of the first observable (i.e., in our past light cone) Gamma Ray Burst (GRB) and calculate the GRB-rate redshift distribution of the Population III stars at…
The formation and gas content of high redshift galaxies and minihalos
Smadar Naoz, Rennan Barkana
We investigate the suppression of the baryon density fluctuations compared to the dark matter in the linear regime. Previous calculations predict that the suppression occurs up to…
The First Stars in The Universe
Smadar Naoz, Shay Noter, Rennan Barkana
Large telescopes have allowed astronomers to observe galaxies that formed as early as 850 million years after the Big Bang. We predict when the first star that astronomers can obse…
Open Cluster Birth Analysis and Multiple Spiral Arm Sets in the Milky Way
Smadar Naoz, Nir J. Shaviv
The Milky Way spiral arm dynamics is studied using the birth place of open clusters. We separately study the nearby spiral arms, and find evidence for multiple spiral sets. In part…