Lecture

Stellar Evolution: Core Collapse

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In course

PHYS-439: Introduction to astroparticle physics

We provide a comprehensive overview of astroparticle physics, bridging the microworld of cosmic messengers with the large-scale structure and evolution of the Universe. We also explore the detection techniques and technologies that make this investigation ...

Description

This lecture covers the evolution of massive stars, focusing on the core collapse process. Topics include the Chandrasekhar mass, hydrogen and helium fusion, and the formation of neutron stars. The lecture also discusses the role of neutrinos in supernova explosions and the detection of neutrinos from SN 1987A.

Instructors (2)

Andrii Neronov

Chiara Perrina

Teaching & PhD PhD Students Kimberly Sarah Keyser, Irwin Khai Cheng Tay Past EPFL PhD Students as codirector Jennifer Maria FriedenMaster's theses Loîs NiggliParzival NussbaumFlorian Simmenauer (Project carried out at the University of Geneva in the AMS experiment)Kimberly KeyserLéonard LebrunPhysics Research Training Semester Kimberly Keyser

Official source

Ontological neighbourhood

Astronomy

Astrophysics: Stellar astronomy

Physics

Nuclear physics: Topics in nuclear physics

Related concepts (30)

Stellar evolution

Stellar evolution is the process by which a star changes over the course of time. Depending on the mass of the star, its lifetime can range from a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the current age of the universe. The table shows the lifetimes of stars as a function of their masses. All stars are formed from collapsing clouds of gas and dust, often called nebulae or molecular clouds.

Moscow

Moscow (ˈmɒskoʊ , US chiefly ˈmɒskaʊ ; Москва) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million residents within the city limits, over 18.8 million residents in the urban area, and over 21.5 million residents in the metropolitan area. The city covers an area of , while the urban area covers , and the metropolitan area covers over .

Turkmenistan

Turkmenistan (tɜːrkˈmɛnᵻstæn or ˌtɜːrkmɛnᵻˈstɑːn; Türkmenistan, tʏɾkmønʏˈθːɑːn) is a landlocked country in Central Asia bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the south and southwest and the Caspian Sea to the west. Ashgabat is the capital and largest city. It is one of the six independent Turkic states. The population is about seven million (according to the 17 December 2022 Census) and is thus the lowest of the Central Asian republics, and Turkmenistan is one of the most sparsely populated nations in Asia.

Stellar nucleosynthesis

Stellar nucleosynthesis is the creation (nucleosynthesis) of chemical elements by nuclear fusion reactions within stars. Stellar nucleosynthesis has occurred since the original creation of hydrogen, helium and lithium during the Big Bang. As a predictive theory, it yields accurate estimates of the observed abundances of the elements. It explains why the observed abundances of elements change over time and why some elements and their isotopes are much more abundant than others.

Supernova

A supernova (: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely destroyed to form a diffuse nebula. The peak optical luminosity of a supernova can be comparable to that of an entire galaxy before fading over several weeks or months.

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Origin of the Nuclides

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