Homework Questions - science
... The diagram shows two mirrors at right angles to each other. A ray of light shines onto one mirror as shown. Carefully draw the path of the ray which is reflected from both mirrors. Draw an arrow on the ray to show the direction of the light. Source of light ...
... The diagram shows two mirrors at right angles to each other. A ray of light shines onto one mirror as shown. Carefully draw the path of the ray which is reflected from both mirrors. Draw an arrow on the ray to show the direction of the light. Source of light ...
Duncan Wright
... diameter on the sky (see Figure 2). The fibres are reformatted to make a pseudo slit that injects light into UCLES at resolution ~70000. Each of the 12 fibres produces it’s own spectrum that is extracted. To be capable of detecting the <10 m s-1 Doppler amplitudes expected from habitable zone planet ...
... diameter on the sky (see Figure 2). The fibres are reformatted to make a pseudo slit that injects light into UCLES at resolution ~70000. Each of the 12 fibres produces it’s own spectrum that is extracted. To be capable of detecting the <10 m s-1 Doppler amplitudes expected from habitable zone planet ...
Picture Match Words Valence Nebula Supernova Pulsar Attract
... 8. A ______________________is established by different types of stars; this zone allows acceptable temperatures for liquid water to exist. 9. Diverse gas make-up, brightness and size also help _______________the separate star types. 10. The shells of an atom always want to be “full;” oxygen has 6 __ ...
... 8. A ______________________is established by different types of stars; this zone allows acceptable temperatures for liquid water to exist. 9. Diverse gas make-up, brightness and size also help _______________the separate star types. 10. The shells of an atom always want to be “full;” oxygen has 6 __ ...
Atmospheric Sciences 101, Summer 2003 Homework #1 Solutions
... c. The upper stratosphere is warmer than the upper troposphere (see Fig. 1.7 of EOM if you need confirmation) but not because the stratosphere is closer to the sun than the troposphere. Those different methods of heating in parts (a) and (b) are one reason why. Give another argument for why proximit ...
... c. The upper stratosphere is warmer than the upper troposphere (see Fig. 1.7 of EOM if you need confirmation) but not because the stratosphere is closer to the sun than the troposphere. Those different methods of heating in parts (a) and (b) are one reason why. Give another argument for why proximit ...
Kinematics of the Solar Neighborhood
... is never prefectly diagonalized. The most significant term to be added to (15.13) is proportional to u(v − va ), indicating that the velocity ellipsoid lies in the plane of the disk, but is not precisely oriented toward the galactic center. The angle between the long axis of the velocity ellipsoid a ...
... is never prefectly diagonalized. The most significant term to be added to (15.13) is proportional to u(v − va ), indicating that the velocity ellipsoid lies in the plane of the disk, but is not precisely oriented toward the galactic center. The angle between the long axis of the velocity ellipsoid a ...
Contemporary Physics - Department of Physics and Astronomy
... Suppose that you were given the task of determining the three dimensional distribution of stars in our Milky Way, and galaxies in space beyond the Milky Way. Describe how you would do this. Keep in mind that you are observing from a fixed point on a rotating Earth, that except for the nearest stars ...
... Suppose that you were given the task of determining the three dimensional distribution of stars in our Milky Way, and galaxies in space beyond the Milky Way. Describe how you would do this. Keep in mind that you are observing from a fixed point on a rotating Earth, that except for the nearest stars ...
Lecture 39
... The energy released in the supernova is astounding. In its first 10 seconds, the 1987A supernova released more energy than the entire visible universe, and 100 times more energy than the Sun will release in its entire 10 billion year lifetime. The supernova begins with the collapse of the stellar co ...
... The energy released in the supernova is astounding. In its first 10 seconds, the 1987A supernova released more energy than the entire visible universe, and 100 times more energy than the Sun will release in its entire 10 billion year lifetime. The supernova begins with the collapse of the stellar co ...
Lecture 5: The Milky Way
... The Thin Disk: what fuels ongoing star formation? • The Milky Way is forming stars at ~1-5 solar masses/year, essentially all of it in the thin disk. Where is the gas coming from? • Stripped from satellites? Accreted through filaments? ...
... The Thin Disk: what fuels ongoing star formation? • The Milky Way is forming stars at ~1-5 solar masses/year, essentially all of it in the thin disk. Where is the gas coming from? • Stripped from satellites? Accreted through filaments? ...
Events: - Temecula Valley Astronomers
... reactions occur that release the Sun’s energy. Photons are being released in the Sun’s core. Is the Sun’s interior “dark?” No! There are a lot of photons there, the same photons we eventually see. The photons require millions of years to escape to the photosphere and thence into space. Now, it’s cer ...
... reactions occur that release the Sun’s energy. Photons are being released in the Sun’s core. Is the Sun’s interior “dark?” No! There are a lot of photons there, the same photons we eventually see. The photons require millions of years to escape to the photosphere and thence into space. Now, it’s cer ...
On the Moon, this crater rules. Copernicus, King of Craters
... We call these smaller galaxies “satellite galaxies,” for the same reason we call the Moon a satellite of the Earth. The photograph here shows two of Andromeda’s satellite galaxies. The round one that appears above Andromeda’s disk is called M32. The oval one below, which looks ...
... We call these smaller galaxies “satellite galaxies,” for the same reason we call the Moon a satellite of the Earth. The photograph here shows two of Andromeda’s satellite galaxies. The round one that appears above Andromeda’s disk is called M32. The oval one below, which looks ...
slides
... But if the core is more massive than 1.4Msun, then the gravitational force is strong enough to overcome the degeneracy pressure, and the electrons are smashed down into the nuclei. ...
... But if the core is more massive than 1.4Msun, then the gravitational force is strong enough to overcome the degeneracy pressure, and the electrons are smashed down into the nuclei. ...
Slide 1
... The Hertzsprung–Russell Diagram An H–R diagram of the 100 brightest stars looks quite different: These stars are all more luminous than the Sun. Two new categories appear here – the red giants and the blue giants. Clearly, the brightest stars in the sky appear bright because of their enormous lumin ...
... The Hertzsprung–Russell Diagram An H–R diagram of the 100 brightest stars looks quite different: These stars are all more luminous than the Sun. Two new categories appear here – the red giants and the blue giants. Clearly, the brightest stars in the sky appear bright because of their enormous lumin ...
- Fermi Gamma-ray Space Telescope
... Discovered in 1965 by Arno Penzias and Robert Wilson who were working at Bell Labs ...
... Discovered in 1965 by Arno Penzias and Robert Wilson who were working at Bell Labs ...
Notes (PowerPoint)
... o Stars, dust, gas, mostly empty space o Groups of galaxies: clusters (us: Local Group) ...
... o Stars, dust, gas, mostly empty space o Groups of galaxies: clusters (us: Local Group) ...
Milky Way thin disk
... Angular momentum conservation In a spherical potential angular momentum will be conserved; in an axisymmetric one, angular momentum in the z direction (Lz) will be conserved. This is likely what happens when a disk accretes gas from its surroundings ...
... Angular momentum conservation In a spherical potential angular momentum will be conserved; in an axisymmetric one, angular momentum in the z direction (Lz) will be conserved. This is likely what happens when a disk accretes gas from its surroundings ...
Two families of exocomets in the Beta Pictoris system
... circumstellar Na I line is steep (Extended Data Fig. 1) and confirms the tremendous stability of the instrument during the observation campaign – as expected for this spectrograph aimed at detecting minute radial velocity variations. Table 2 in ref. 23 shows that the accuracy of HARPS is better than ...
... circumstellar Na I line is steep (Extended Data Fig. 1) and confirms the tremendous stability of the instrument during the observation campaign – as expected for this spectrograph aimed at detecting minute radial velocity variations. Table 2 in ref. 23 shows that the accuracy of HARPS is better than ...
Chapter 35 Light: Reflection and Refraction
... It is natural to treat the propagation of light in terms of rays. A ray is equivalent to a very narrow beam of light, and it indicates the path along which the energy of the wave travels. Geometrical optics is the study of the behavior of straightline rays at the interference between two media by th ...
... It is natural to treat the propagation of light in terms of rays. A ray is equivalent to a very narrow beam of light, and it indicates the path along which the energy of the wave travels. Geometrical optics is the study of the behavior of straightline rays at the interference between two media by th ...
Lab 2: The Planisphere
... RA-Dec coordinates are only good for storing the location of stars in reference books. This coordinate system, called the equatorial system, tells us nothing about how to actually find something in the sky when we go outside. The altitude-azimuth coordinate system, called the horizon system, fulfill ...
... RA-Dec coordinates are only good for storing the location of stars in reference books. This coordinate system, called the equatorial system, tells us nothing about how to actually find something in the sky when we go outside. The altitude-azimuth coordinate system, called the horizon system, fulfill ...
Life Cycle of a Star notes
... needs another electron. For example: water = H2O Watch the board…..so you can understand why elements react to other elements. ...
... needs another electron. For example: water = H2O Watch the board…..so you can understand why elements react to other elements. ...
A105 Stars and Galaxies - Department of Astronomy
... Why do the constellations we see depend on latitude and time of year? They depend on latitude because your position on Earth determines which constellations remain below the horizon. They depend on time of year because Earth’s orbit changes the apparent location of the Sun among the stars. ...
... Why do the constellations we see depend on latitude and time of year? They depend on latitude because your position on Earth determines which constellations remain below the horizon. They depend on time of year because Earth’s orbit changes the apparent location of the Sun among the stars. ...
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.