Lecture Notes
... A variety of techniques can be used for determining distances of individual stars. Where these don’t involve intermediate steps, they are known as primary distance indicators. Primary distance indicators based on simple geometric techniques (like parallax, the convergent point of moving star cluster ...
... A variety of techniques can be used for determining distances of individual stars. Where these don’t involve intermediate steps, they are known as primary distance indicators. Primary distance indicators based on simple geometric techniques (like parallax, the convergent point of moving star cluster ...
Stages in the Life of a Star
... tells you age of cluster. Assume that all stars in cluster form at about the same time. Stars slightly heavier than turnoff have already evolved away from main sequence. ...
... tells you age of cluster. Assume that all stars in cluster form at about the same time. Stars slightly heavier than turnoff have already evolved away from main sequence. ...
the stars
... “Ground"). Looking at the stars you note they have different colors and magnitudes. In order to understand what this features mean, we try to operate as Hertzsprung and Russell did at the beginning of the XX century. Hertzsprung and Russell observed the most luminous stars, plotted their absolute ma ...
... “Ground"). Looking at the stars you note they have different colors and magnitudes. In order to understand what this features mean, we try to operate as Hertzsprung and Russell did at the beginning of the XX century. Hertzsprung and Russell observed the most luminous stars, plotted their absolute ma ...
New Brunswick Grade One Unit 2 Our Environment 1.2.3 observe
... 107-3 compare tools, techniques, and scientific ideas used by different people around the world to interpret natural phenomena and meet their needs 107-15 describe scientific and technological achievements that are the result of contributions by people from around the world ...
... 107-3 compare tools, techniques, and scientific ideas used by different people around the world to interpret natural phenomena and meet their needs 107-15 describe scientific and technological achievements that are the result of contributions by people from around the world ...
Essay - CLC Charter School
... bursts. But if a star is massive enough, it can leave behind something more. For this to happen though, the star must be 10 times the size of the sun at least. So the supernova leaves a large core, and with no energy to fuse it doesn’t have any outward pressure, and that causes it to be very unbalan ...
... bursts. But if a star is massive enough, it can leave behind something more. For this to happen though, the star must be 10 times the size of the sun at least. So the supernova leaves a large core, and with no energy to fuse it doesn’t have any outward pressure, and that causes it to be very unbalan ...
FTIR Instrumentation
... each of the two beams is again half reflected and half transmitted. Two output beams result: one travels to the detector as the other travels to the source. When the two beams return to the beamsplitter, an interference pattern, or interferogram, is generated. This interference pattern varies with t ...
... each of the two beams is again half reflected and half transmitted. Two output beams result: one travels to the detector as the other travels to the source. When the two beams return to the beamsplitter, an interference pattern, or interferogram, is generated. This interference pattern varies with t ...
Dark Matter in the Universe
... hatever dark matter turns out to be, we know for now hurtling toward each other at the brisk clip of 130 kilocertain that the universe contains large amounts of meters (81 miles) per second. As eager spectators, we must it. For every gram of glowing material we can detect, watch this encounter for a ...
... hatever dark matter turns out to be, we know for now hurtling toward each other at the brisk clip of 130 kilocertain that the universe contains large amounts of meters (81 miles) per second. As eager spectators, we must it. For every gram of glowing material we can detect, watch this encounter for a ...
Lecture 20, PPT version
... • if universe has been expanding at constant rate for all time, then all galaxies would have been on top of each other at time equal to 1/H0 Distance between any two galaxy clusters at the present day: distance = speed x time (the standard formula) speed = H0 x distance (Hubble’s Law, specifically) ...
... • if universe has been expanding at constant rate for all time, then all galaxies would have been on top of each other at time equal to 1/H0 Distance between any two galaxy clusters at the present day: distance = speed x time (the standard formula) speed = H0 x distance (Hubble’s Law, specifically) ...
Section 1 Notes
... The origins of several of the series of lines in hydrogen’s line-emission spectrum are shown in Figure 4-9. The success of Bohr’s model of the hydrogen atom in explaining observed spectral lines led many scientists to conclude that a similar model could be applied to all atoms. ...
... The origins of several of the series of lines in hydrogen’s line-emission spectrum are shown in Figure 4-9. The success of Bohr’s model of the hydrogen atom in explaining observed spectral lines led many scientists to conclude that a similar model could be applied to all atoms. ...
Weighing a galaxy / Black holes / Quasars —16 Nov Nov-09
... mass that interacts very weakly with ordinary matter. Experiments to detect dark matter have been in progress for 20 years. Ast 207 F2009 ...
... mass that interacts very weakly with ordinary matter. Experiments to detect dark matter have been in progress for 20 years. Ast 207 F2009 ...
3-D movies and Planetarium Two
... Why does the full Moon turn red? How long does the eclipse last for? Learn all about how a Total Lunar Eclipse works as the full Moon travels through the Earths shadow. Duration: 2 minutes Using Quasars to Measure the Earth Learn how astronomers use radio telescopes and the most distant galaxies in ...
... Why does the full Moon turn red? How long does the eclipse last for? Learn all about how a Total Lunar Eclipse works as the full Moon travels through the Earths shadow. Duration: 2 minutes Using Quasars to Measure the Earth Learn how astronomers use radio telescopes and the most distant galaxies in ...
Some Issues from Advanced Lithography General
... maximum exposure time should be below a second or so, and you simply need intense light for that. Monochromatic light we need, because we cannot possible built a supreme lens for many wavelengths (there are things like chromatic aberration and so on). Taking a small part of the spectrum out of some ...
... maximum exposure time should be below a second or so, and you simply need intense light for that. Monochromatic light we need, because we cannot possible built a supreme lens for many wavelengths (there are things like chromatic aberration and so on). Taking a small part of the spectrum out of some ...
STAR TYPES
... Most stars, including the sun, are "main sequence stars," fueled by nuclear fusion converting hydrogen into helium. For these stars, the hotter they are, the brighter. These stars are in the most stable part of their existence; this stage generally lasts for about 5 billion years. As stars begin to ...
... Most stars, including the sun, are "main sequence stars," fueled by nuclear fusion converting hydrogen into helium. For these stars, the hotter they are, the brighter. These stars are in the most stable part of their existence; this stage generally lasts for about 5 billion years. As stars begin to ...
Introduction to Astronomy and the Celestial Sphere
... appears as a dome over our heads. Stars seem embedded like tiny jewels Ancient astronomers believed that all of the stars were the same distance from the earth (but, of course, they aren’t). Useful model of what we see from Earth. At any one time, we can see only ½ of the celestial sphere (Where is ...
... appears as a dome over our heads. Stars seem embedded like tiny jewels Ancient astronomers believed that all of the stars were the same distance from the earth (but, of course, they aren’t). Useful model of what we see from Earth. At any one time, we can see only ½ of the celestial sphere (Where is ...
From Here on Earth
... An exposure every 10 minutes captured the Moon's position and eclipse phase, above the rugged skyline and town lights. The sequence actually effectively measures the roughly 80 minute duration of the total phase of the eclipse. Around 270 BC, the Greek astronomer Aristarchus also measured the durati ...
... An exposure every 10 minutes captured the Moon's position and eclipse phase, above the rugged skyline and town lights. The sequence actually effectively measures the roughly 80 minute duration of the total phase of the eclipse. Around 270 BC, the Greek astronomer Aristarchus also measured the durati ...
Superconducting Detectors: Sensitivity Over Ten Orders of Magnitude
... zoominonnitrogenpeakin eachspectrum: N ...
... zoominonnitrogenpeakin eachspectrum: N ...
Citizen Sky Epsilon Aurigae Script for Fulldome Planetariums
... On a clear, dark night, we see the same constellations our ancestors saw long ago: the Great Bear relentlessly pacing around the North Star, queen Cassiopeia spinning topsy-turvy on her celestial throne. But as our ancestors noticed, some stars change slightly over time. They don’t stray noticeably ...
... On a clear, dark night, we see the same constellations our ancestors saw long ago: the Great Bear relentlessly pacing around the North Star, queen Cassiopeia spinning topsy-turvy on her celestial throne. But as our ancestors noticed, some stars change slightly over time. They don’t stray noticeably ...
Scale
... • You are not in the course unless a GSI has enrolled you on the course website into a section (Telebears aside) • For that to happen, you MUST get an account in Blackboard • Sections next week are all in the basement of Campbell Hall • This is not a mathematical course, but there is simple algebra ...
... • You are not in the course unless a GSI has enrolled you on the course website into a section (Telebears aside) • For that to happen, you MUST get an account in Blackboard • Sections next week are all in the basement of Campbell Hall • This is not a mathematical course, but there is simple algebra ...
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.