86 citations · 757 across the 45 of their papers we have counts for
11 papers · 1 filter
X-Ray Emission from Planetary Nebulae Calculated by 1D Spherical Numerical Simulations
Muhammad Akashi, Noam Soker, Ehud Behar +1
We calculate the X-ray emission from both constant and time evolving shocked fast winds blown by the central stars of planetary nebulae (PNs) and compare with observations. Using s…
Magnetic Activity in Stellar Merger Products
Noam Soker, Romuald Tylenda
We study the expected X-ray luminosity of stellar merger products several years after merger. The X-ray emission is assumed to result from magnetic activity. The extended envelope…
Bubbles in Planetary Nebulae and Clusters of Galaxies: Slowly Precessing Jets
Noam Soker
I derive the condition for narrow jets with varying axis, e.g., precessing jets, to inflate more or less spherical (fat) bubbles in planetary nebulae and clusters of galaxies. This…
Modelling V838 Monocerotis as a Mergeburst Object
Noam Soker, Romuald Tylenda
We discuss the main observational facts on the eruption of V838 Monocerotis in terms of possible outburst mechanisms. We conclude that the stellar merger scenario is the only one,…
Violent Stellar Merger Model for Transient Events
Noam Soker, Romuald Tylenda
We derive the constraints on the mass ratio for a binary system to merge in a violent process. We find that the secondary to primary stellar mass ratio should be ~0.003 < (M_2/M_1)…
A hot transient outflow from eta Carinae
Ehud Behar, Raanan Nordon, Eyal Ben-Bassat +1
eta Carinae is a stellar binary system with a period of 5.54 years. It harbors one of the brightest and most massive stars in our galaxy. This paper presents spectroscopic evidence…