Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Synchrotron Emissions: Basics & Applications

Description

This lecture covers the fundamentals of synchrotron emissions, including synchrotron lifetime, polarisation, self-absorption, and inverse Compton scattering. It explores the properties of electron energy, magnetic fields, and their impact on emission processes in the Radio Universe.

In MOOC

The Radio Sky I: Science and Observations

Official source

Related concepts (32)

Universe

The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang theory is the prevailing cosmological description of the development of the universe. According to this theory, space and time emerged together 13.787billion years ago, and the universe has been expanding ever since the Big Bang. While the spatial size of the entire universe is unknown, it is possible to measure the size of the observable universe, which is approximately 93 billion light-years in diameter at the present day.

Chronology of the universe

The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level. For the purposes of this summary, it is convenient to divide the chronology of the universe since it originated, into five parts.

Observable universe

The observable universe is a ball-shaped region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time; the electromagnetic radiation from these objects has had time to reach the Solar System and Earth since the beginning of the cosmological expansion. Initially, it was estimated that there may be 2 trillion galaxies in the observable universe, although that number was reduced in 2021 to only several hundred billion based on data from New Horizons.

Age of the universe

In physical cosmology, the age of the universe is the time elapsed since the Big Bang. Astronomers have derived two different measurements of the age of the universe: a measurement based on direct observations of an early state of the universe, which indicate an age of 13.787 billion years as interpreted with the Lambda-CDM concordance model as of 2021; and a measurement based on the observations of the local, modern universe, which suggest a younger age.

Synchrotron light source

A synchrotron light source is a source of electromagnetic radiation (EM) usually produced by a storage ring, for scientific and technical purposes. First observed in synchrotrons, synchrotron light is now produced by storage rings and other specialized particle accelerators, typically accelerating electrons. Once the high-energy electron beam has been generated, it is directed into auxiliary components such as bending magnets and insertion devices (undulators or wigglers) in storage rings and free electron lasers.

Related lectures (30)

Continuum Emissions: Magnetobremsstrahlung and Synchrotron Radiation MOOC: The Radio Sky I: Science and Observations

Explores magnetobremsstrahlung emission and synchrotron radiation in continuum emissions in the Radio Universe.

Cosmic Magnetic Fields: Generation and Backreaction

Covers the generation of primordial magnetic fields and their backreaction effects in cosmology.

Galaxy Clusters: Components and Discoveries MOOC: The Radio Sky I: Science and Observations

Explores galaxy cluster components, historical discoveries, X-ray and radio emissions, and gravitational lensing effects.

Untitled

Calorimeter Model and Milky Way MOOC: The Radio Sky I: Science and Observations