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View article: The thermalization of <i>γ</i>-rays in radioactive expanding ejecta: a simple model and its application for Kilonovae and Ia SNe
The thermalization of <i>γ</i>-rays in radioactive expanding ejecta: a simple model and its application for Kilonovae and Ia SNe Open
A semi-analytic approximation is derived for the time-dependent fraction $f_\gamma (t)$ of the energy deposited by radioactive decay $\gamma$-rays in a homologously expanding plasma of general structure. An analytic approximation is given …
View article: An analytic description of electron thermalization in kilonovae ejecta
An analytic description of electron thermalization in kilonovae ejecta Open
A simple analytic description is provided of the rate of energy deposition by β-decay electrons in the homologously expanding radioactive plasma ejected in neutron star mergers, valid for a wide range of ejecta parameters – initial entropy…
View article: The thermalization of $γ$-rays in radioactive expanding ejecta: A simple model and its application for Kilonovae and Ia SNe
The thermalization of $γ$-rays in radioactive expanding ejecta: A simple model and its application for Kilonovae and Ia SNe Open
A semi-analytic approximation is derived for the time-dependent fraction $f_γ(t)$ of the energy deposited by radioactive decay $γ$-rays in a homologously expanding plasma of general structure. An analytic approximation is given for spheric…
View article: An Analytic Description of Electron Thermalization in Kilonovae Ejecta
An Analytic Description of Electron Thermalization in Kilonovae Ejecta Open
A simple analytic description is provided of the rate of energy deposition by $β$-decay electrons in the homologously expanding radioactive plasma ejected in neutron star mergers, valid for a wide range of ejecta parameters -- initial entr…
View article: The scientific payload of the Ultraviolet Transient Astronomy Satellite (ULTRASAT)
The scientific payload of the Ultraviolet Transient Astronomy Satellite (ULTRASAT) Open
The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is a space-borne near UV telescope with an unprecedented large field of view (200 sq. deg.). The mission, led by the Weizmann Institute of Science and the Israel Space Agency in coll…
View article: Non-thermal emission from mildly relativistic dynamical ejecta of neutron star mergers
Non-thermal emission from mildly relativistic dynamical ejecta of neutron star mergers Open
Binary neutron star mergers are expected to produce fast dynamical ejecta, with mildly relativistic velocities extending to $β=v/c>0.6$. We consider the radio to X-ray synchrotron emission produced by collisionless shocks driven by such fa…
View article: Quantiles as robust probes of non-Gaussianity in 21-cm images
Quantiles as robust probes of non-Gaussianity in 21-cm images Open
The epoch in which the first stars and galaxies formed is among the most exciting unexplored eras of the Universe. A major research effort is focused on probing this era with the 21-cm spectral line of hydrogen. While most research works f…