scholarly journals X‐Ray Emission from Planetary Nebulae. I. Spherically Symmetric Numerical Simulations

2006 ◽  
Vol 651 (2) ◽  
pp. 882-897 ◽  
Author(s):  
Matthias Stute ◽  
Raghvendra Sahai
Keyword(s):  
Numerical Simulations ◽  
Planetary Nebulae ◽  
Spherically Symmetric ◽  
X Ray

scholarly journals Simulations of the Formation and X-ray Emission from Hot Bubbles in Planetary Nebulae

Galaxies ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 80
Author(s):  
Jesus Toalá ◽  
S. Arthur
Keyword(s):  
Numerical Simulations ◽  
Turbulent Mixing ◽  
Mixing Layer ◽  
Planetary Nebulae ◽  
Magellanic Clouds ◽  
Small Range ◽  
High Quality ◽  
Turbulent Mixing Layer ◽  
X Ray ◽  
Material Form

High-quality X-ray observations of planetary nebulae (PNe) have demonstrated that the X-ray-emitting gas in their hot bubbles have temperatures in the small range TX = (1 − 3) × 106 K. However, according to theoretical expectations, adiabatically-shocked wind-blown bubbles should have temperatures up to two orders of magnitude higher. Numerical simulations show that instabilities at the interface between the hot bubble and the nebular material form clumps and filaments that generate an intermediate-temperature turbulent mixing layer. We describe the X-ray properties resulting from simulations of PNe in our Galaxy and the Magellanic Clouds.

scholarly journals ON THE ORIGIN OF COOL CORE GALAXY CLUSTERS: COMPARING X-RAY OBSERVATIONS WITH NUMERICAL SIMULATIONS

2009 ◽  
Vol 697 (2) ◽  
pp. 1597-1620 ◽  
Author(s):  
Jason W. Henning ◽  
Brennan Gantner ◽  
Jack O. Burns ◽  
Eric J. Hallman
Keyword(s):  
Numerical Simulations ◽  
Galaxy Clusters ◽  
X Ray

Abundance Anomalies in the X‐Ray Spectra of Planetary Nebulae NGC 7027 and BD +30o3639

2003 ◽  
Vol 589 (1) ◽  
pp. 439-443 ◽  
Author(s):  
Holly L. Maness ◽  
Saeqa D. Vrtilek ◽  
Joel H. Kastner ◽  
Noam Soker
Keyword(s):  
Planetary Nebulae ◽  
X Ray ◽  
Ngc 7027 ◽  
Abundance Anomalies

Numerical simulations of X-ray rocking curves in multiple-crystal arrangements

2005 ◽  
Vol 401 (1-2) ◽  
pp. 212-216 ◽  
Author(s):  
J. Borowski ◽  
J. Gronkowski ◽  
R. Salamonik
Keyword(s):  
Numerical Simulations ◽  
X Ray

scholarly journals The modelling of the X-ray emission of planetary nebulae

2006 ◽  
Vol 2 (S234) ◽  
pp. 161 ◽  
Author(s):  
D. Schönberner ◽  
M. Steffen ◽  
A. Warmuth
Keyword(s):  
Planetary Nebulae ◽  
X Ray

Recollimation shocks in relativistic jets

2018 ◽  
Vol 27 (10) ◽  
pp. 1844011 ◽  
Author(s):  
José M. Martí ◽  
Manel Perucho ◽  
José L. Gómez ◽  
Antonio Fuentes
Keyword(s):  
Magnetic Fields ◽  
Numerical Simulations ◽  
Theoretical Background ◽  
Synchrotron Emission ◽  
Relativistic Jets ◽  
Dominant Type ◽  
X Ray ◽  
Extragalactic Jets ◽  
X Ray Binaries ◽  
Selection Of

Recollimation shocks (RS) appear associated with relativistic flows propagating through pressure mismatched atmospheres. Astrophysical scenarios invoking the presence of such shocks include jets from AGNs and X-ray binaries and GRBs. We shall start reviewing the theoretical background behind the structure of RS in overpressured jets. Next, basing on numerical simulations, we will focus on the properties of RS in relativistic steady jets threaded by helical magnetic fields depending on the dominant type of energy. Synthetic radio maps from the simulation of the synchrotron emission for a selection of models in the context of parsec-scale extragalactic jets will also be discussed.

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