Diffraction and Interference
... light. Colors are produced by interference between light beams. • So if you see red, what color is being cancelled? ...
... light. Colors are produced by interference between light beams. • So if you see red, what color is being cancelled? ...
THE PHOTOELECTRIC EFFECT
... THEORY: When light (or other electromagnetic radiation) is incident on a metal surface, electrons can be released from the metal. This is the photoelectric effect. According to classical theory, the electrons are shaken loose from atoms by the electric field of the incident light, and so a brighter ...
... THEORY: When light (or other electromagnetic radiation) is incident on a metal surface, electrons can be released from the metal. This is the photoelectric effect. According to classical theory, the electrons are shaken loose from atoms by the electric field of the incident light, and so a brighter ...
The Butterfly Nebula (NGC 6302)
... A butterfly emerges from a dying star Ordinary stars like our Sun live undistinguished lives. They steadily churn out heat and light for billions of years. Oddly enough, their lives become more exciting when they run out of hydrogen fuel and reach retirement age. This is when these stars begin to st ...
... A butterfly emerges from a dying star Ordinary stars like our Sun live undistinguished lives. They steadily churn out heat and light for billions of years. Oddly enough, their lives become more exciting when they run out of hydrogen fuel and reach retirement age. This is when these stars begin to st ...
Supernovae
... expected from supernova in LMC in Feb 1987. • Probably type II SN because originator was massive B star (20 M) • Neutrinos are rarely absorbed so energy changed little over many x 10 9 years (except for loss due to expansion of Universe)… thus they are very difficult to detect. • However density of ...
... expected from supernova in LMC in Feb 1987. • Probably type II SN because originator was massive B star (20 M) • Neutrinos are rarely absorbed so energy changed little over many x 10 9 years (except for loss due to expansion of Universe)… thus they are very difficult to detect. • However density of ...
center of mass
... c. The Subgiants. d. The Main Sequence. e. The mass-luminosity relationship applies to all luminosity ...
... c. The Subgiants. d. The Main Sequence. e. The mass-luminosity relationship applies to all luminosity ...
Chapter 09
... c. The Subgiants. d. The Main Sequence. e. The mass-luminosity relationship applies to all luminosity ...
... c. The Subgiants. d. The Main Sequence. e. The mass-luminosity relationship applies to all luminosity ...
White Dwarfs
... temperatures to ignite elements heavier than carbon in their core become white dwarfs. • Hot exposed core of an evolved low mass star. • Supported by electron degeneracy pressure. This is the tendency of atoms to resist compression. • The more massive a white dwarf, the smaller it is. A solar mas ...
... temperatures to ignite elements heavier than carbon in their core become white dwarfs. • Hot exposed core of an evolved low mass star. • Supported by electron degeneracy pressure. This is the tendency of atoms to resist compression. • The more massive a white dwarf, the smaller it is. A solar mas ...
9 Weeks Standards being Taught 1st 9 Weeks Vocabulary
... corona, sunspots, prominences, and solar flares. 8-4.3 Explain how the surface features of the Sun may affect Earth. 8-4.4 Explain the motions of Earth and the Moon and the effects of these motions as they orbit the Sun (including day, year, phases of the Moon, eclipses, and tides). 8-4.5 Explain ho ...
... corona, sunspots, prominences, and solar flares. 8-4.3 Explain how the surface features of the Sun may affect Earth. 8-4.4 Explain the motions of Earth and the Moon and the effects of these motions as they orbit the Sun (including day, year, phases of the Moon, eclipses, and tides). 8-4.5 Explain ho ...
pres
... but a fractal structure, in statistical equilibrium with TCMB Sporadic star formation after the first stars, Re-ionisation The cold gas survives and will be assembled in more large scale structures to form galaxies A way to solve the « cooling catastrophy » ...
... but a fractal structure, in statistical equilibrium with TCMB Sporadic star formation after the first stars, Re-ionisation The cold gas survives and will be assembled in more large scale structures to form galaxies A way to solve the « cooling catastrophy » ...
Astronomy Astrophysics MY Camelopardalis, a very massive merger progenitor &
... A total of 63 spectra were obtained, with fixed exposure times of 1800 s. The signal-to-noise ratio (S/N) varies strongly between spectra, from ∼20 to ∼50 per pixel. The spectrograph covers a wide spectral range between 3780 and 10 864 Å. The resolution is slightly variable with wavelength, but alwa ...
... A total of 63 spectra were obtained, with fixed exposure times of 1800 s. The signal-to-noise ratio (S/N) varies strongly between spectra, from ∼20 to ∼50 per pixel. The spectrograph covers a wide spectral range between 3780 and 10 864 Å. The resolution is slightly variable with wavelength, but alwa ...
Recurring theme: conservation of energy
... • Note: hot new blue main sequence stars • Pink hydrogen gas • Black sooty dust ...
... • Note: hot new blue main sequence stars • Pink hydrogen gas • Black sooty dust ...
Activity 8 The Doppler Effect
... Astronomers measure distances to stars in two different ways. One way is with parallax, but this method works only for the nearest stars. For all other stars astronomers apply the Doppler effect.They use the Doppler shift of spectral lines.The next-nearest galaxy is Andromeda, more than a million li ...
... Astronomers measure distances to stars in two different ways. One way is with parallax, but this method works only for the nearest stars. For all other stars astronomers apply the Doppler effect.They use the Doppler shift of spectral lines.The next-nearest galaxy is Andromeda, more than a million li ...
Name: Period: ______ The Modern View A little review Earth
... In what direction do the planets usually move? In what direction does a planet move when it is in retrograde motion? Why was the early church so interested in astronomy? ...
... In what direction do the planets usually move? In what direction does a planet move when it is in retrograde motion? Why was the early church so interested in astronomy? ...
Solar System - CW Perry School
... The Solar System is made up of all the planets that orbit our Sun. In addition to planets, the Solar System also consists of moons, comets, asteroids, minor planets, and dust and gas. Everything in the Solar System orbits or revolves around the Sun. The Sun contains around 98% of all the material in ...
... The Solar System is made up of all the planets that orbit our Sun. In addition to planets, the Solar System also consists of moons, comets, asteroids, minor planets, and dust and gas. Everything in the Solar System orbits or revolves around the Sun. The Sun contains around 98% of all the material in ...
Friday, February 12, 2016 Astronomy in the news?
... Charge repulsion does not provide the pressure to support the star, but it is critical in demanding that heavier fuels get hotter before they can burn, stars supported by the thermal pressure automatically do that. ...
... Charge repulsion does not provide the pressure to support the star, but it is critical in demanding that heavier fuels get hotter before they can burn, stars supported by the thermal pressure automatically do that. ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.