Slide 1
... production of rare elements. Even light nuclei like carbon and oxygen, which can be produced by low mass stars, would be locked up inside white dwarfs if it wasn't for supernovae. Supernovae enrich the gas between the stars with all kinds of chemical elements that are necessary for the production of ...
... production of rare elements. Even light nuclei like carbon and oxygen, which can be produced by low mass stars, would be locked up inside white dwarfs if it wasn't for supernovae. Supernovae enrich the gas between the stars with all kinds of chemical elements that are necessary for the production of ...
Unit 1
... interiors of stars whenever energy transport away from the core becomes too slow – Radiation carries away energy in regions where the photons are not readily absorbed by stellar gas – Close to the cores of massive stars, there is enough material to impede the flow of energy through radiation ...
... interiors of stars whenever energy transport away from the core becomes too slow – Radiation carries away energy in regions where the photons are not readily absorbed by stellar gas – Close to the cores of massive stars, there is enough material to impede the flow of energy through radiation ...
Class II Supernova
... Stars with anywhere from 3-9 solar masses have hydrogen in their core. When the hydrogen combines with the helium, it produces thermal energy. This is how the star is maintained. When the star runs out or stops producing hydrogen the thermal energy doesn’t maintain the star anymore. ...
... Stars with anywhere from 3-9 solar masses have hydrogen in their core. When the hydrogen combines with the helium, it produces thermal energy. This is how the star is maintained. When the star runs out or stops producing hydrogen the thermal energy doesn’t maintain the star anymore. ...
Supernovae Gamma-Ray Bursts and and some of their uses
... • An accreting white dwarf in a close binary system can also become a supernova when carbon fusion ignites explosively throughout such a degenerate star ...
... • An accreting white dwarf in a close binary system can also become a supernova when carbon fusion ignites explosively throughout such a degenerate star ...
Section 24.1 The study of Light
... When the spectrum of a star is studied, the spectral lines act as “fingerprints.” These lines identify the elements present and thus the star’s chemical ...
... When the spectrum of a star is studied, the spectral lines act as “fingerprints.” These lines identify the elements present and thus the star’s chemical ...
here
... Stars and the development of life on planets • The habitable zone around small stars tends to be very close to the star. • If the distance between a planet and the star it is orbiting is small the gravitational force between the two objects can cause the orbiting planet’s period of rotation to beco ...
... Stars and the development of life on planets • The habitable zone around small stars tends to be very close to the star. • If the distance between a planet and the star it is orbiting is small the gravitational force between the two objects can cause the orbiting planet’s period of rotation to beco ...
Accretion mechanisms
... M disc M BH , so self—gravity is important R local physics is extremely complex — nuclear reactions, turbulence, magnetic fields, ….. all in general—relativistic context inherently 3D ...
... M disc M BH , so self—gravity is important R local physics is extremely complex — nuclear reactions, turbulence, magnetic fields, ….. all in general—relativistic context inherently 3D ...
Stellar Evolution
... Medium sized stars, like our sun, begin to show their age as helium builds up in the core. The helium core does not provide any energy and gravity causes the core to contract while hydrogen continues to fuse in a shell around the helium. This gravitational collapse of the core causes releases ...
... Medium sized stars, like our sun, begin to show their age as helium builds up in the core. The helium core does not provide any energy and gravity causes the core to contract while hydrogen continues to fuse in a shell around the helium. This gravitational collapse of the core causes releases ...