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The Spanish began the conquest of the Inca Empire in 1532 and by 1572, the last Inca state was fully conquered. From 1438 to 1533, the Incas incorporated a large portion of western South America, centered on the Andean Mountains, using conquest and peaceful assimilation, among other methods.
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When did SN 1572 disappear?
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- Evolution
- Constraints from Nucleosynthesis Products
- Particle Acceleration
- Toward An Integrated Model of Tycho’s Snr Through 3D Simulations
The evolution of young SNRs, traced by its expansion parameter, depends mostly on the hydrodynamic structure in terms of pressure, velocity, and density of the interaction region (bounded by the forward and reverse shocks). It depends on a few key parameters, related to the ambient medium density and structure (interstellar medium, stellar wind fro...
The ejecta X-ray line emission (intensity, energy, and line ratios) provides constraints on the supernova yields and on the emitting conditions, which are related to the properties of the supernova and its subsequent evolution as a remnant. It can thus provide constraints on the explosion mechanism. The global X-ray spectrum of Tycho’s SNR (see Fig...
Tycho’s SNR has been at the forefront of discoveries regarding particle acceleration in supernova remnants. First, Chandra observations (Hwang et al. 2002) revealed the presence all along the forward shock of a thin high-energy filament, spectrally featureless. It resolved, with its high-spatial resolution, the morphology of the high-energy rim sho...
Tycho’s supernova remnant is one of the few young galactic Ia remnants, still dominated by the ejecta emission, as the same time as experiencing efficient particle acceleration at its forward shock. As shown previously, the acceleration of particles at the forward shock impacts the shock properties and the overall hydrodynamical structure of the sh...
- Anne Decourchelle
- anne.decourchelle@cea.fr
The 450th anniversary of the discovery of the SN 1572 supernova event was celebrated in 2022. A closer look at the historical development of the field of supernova astronomy reveals the scientific importance of Tycho Brahe’s 1572 observations of this “new star.”
This category has the following 14 subcategories, out of 14 total. 1572 by continent (6 C) 1572 by country (29 C, 2 P)
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