Gravitational Collapse
... enough, H atoms can form H2. Unfortunately, no emission from H2 in the optical or radio bands. Therefore use, 1. Other molecules. For example, CO emits radiation at a wavelength of 2.6mm microwaves. 2. Dust. Dust (and molecules) are often found together - dense, dark clouds (called Bok globules) are ...
... enough, H atoms can form H2. Unfortunately, no emission from H2 in the optical or radio bands. Therefore use, 1. Other molecules. For example, CO emits radiation at a wavelength of 2.6mm microwaves. 2. Dust. Dust (and molecules) are often found together - dense, dark clouds (called Bok globules) are ...
M77 (NGC 1068)
... High luminosity greater then 1037 W. Nonthermal emission, with excessive UV, IR, Radio and X-Ray flux (compared to most galaxies). Small region of rapid variability. High contrast of brightness between nucleus and other structures (large scale). ...
... High luminosity greater then 1037 W. Nonthermal emission, with excessive UV, IR, Radio and X-Ray flux (compared to most galaxies). Small region of rapid variability. High contrast of brightness between nucleus and other structures (large scale). ...
particles
... Einstein was also unsatisfied with his Theory of Special Relativity; it didn’t include acceleration. And because acceleration seemed similar to gravity, in 1915 he lost interest in the quantum mechanical revolution he had begun, and decided to pursue a geometrical theory of gravity, in which acceler ...
... Einstein was also unsatisfied with his Theory of Special Relativity; it didn’t include acceleration. And because acceleration seemed similar to gravity, in 1915 he lost interest in the quantum mechanical revolution he had begun, and decided to pursue a geometrical theory of gravity, in which acceler ...
WEEK 2: 16 J
... electromagnetic spectrum is this emission found? 4B. Determine the final value of n associated with this emission? (Hint: Consider E = h and the Rydberg equation, use this to find the value of nf.) 4C. Determine the initial value of n associated with this emission. (Hint: Will this value be higher o ...
... electromagnetic spectrum is this emission found? 4B. Determine the final value of n associated with this emission? (Hint: Consider E = h and the Rydberg equation, use this to find the value of nf.) 4C. Determine the initial value of n associated with this emission. (Hint: Will this value be higher o ...
Chapter 19 Nuclear Magnetic Resonance Spectroscopy
... NMR spectra can be categorized as either wide line or high resolution. • Wide-Line spectra: Wide-line spectra are those in which the bandwidth of the source of the lines is large enough so that the fine structure due to chemical environment is obscured. A single peak is associated with each species. ...
... NMR spectra can be categorized as either wide line or high resolution. • Wide-Line spectra: Wide-line spectra are those in which the bandwidth of the source of the lines is large enough so that the fine structure due to chemical environment is obscured. A single peak is associated with each species. ...
star map looking north january-march
... Our nearest large galaxy – Andromeda – can be seen in the Andromeda constellation. It appears to us as an elongated fuzzy blob. The Andromeda galaxy is so far away that its light takes over two million years to reach us. ...
... Our nearest large galaxy – Andromeda – can be seen in the Andromeda constellation. It appears to us as an elongated fuzzy blob. The Andromeda galaxy is so far away that its light takes over two million years to reach us. ...
Big Bang - WordPress.com
... Background information In September 2008 scientists hailed a successful switch on for the Large Hadron Collider (LHC). This was the start of experiments to re-create conditions a few moments after the Big Bang. Observational evidence shows the Universe started at one point in space and time. The Big ...
... Background information In September 2008 scientists hailed a successful switch on for the Large Hadron Collider (LHC). This was the start of experiments to re-create conditions a few moments after the Big Bang. Observational evidence shows the Universe started at one point in space and time. The Big ...
Stellar Temperatures
... there are exceptions). To zeroth order, they can be considered blackbodies, with stellar absorption lines on top. There is a great variety of stellar absorption lines; the strength of any individual line is determine by the star’s • Temperature (most important) • Gravity • Abundance Historically, ...
... there are exceptions). To zeroth order, they can be considered blackbodies, with stellar absorption lines on top. There is a great variety of stellar absorption lines; the strength of any individual line is determine by the star’s • Temperature (most important) • Gravity • Abundance Historically, ...
Orion- The Swordsman of the Sky - A Winter Constellation from the
... see the shoulders of Orion. The left shoulder star (seen from our vantage point) is Betelgeuse. This is a red super giant star, which also happens to be an irregular variable star in its final stages of life, but still has several millions of years before it explodes. Its brightness tends to vary ov ...
... see the shoulders of Orion. The left shoulder star (seen from our vantage point) is Betelgeuse. This is a red super giant star, which also happens to be an irregular variable star in its final stages of life, but still has several millions of years before it explodes. Its brightness tends to vary ov ...
Define the following terms in the space provided
... Answer the following Multiple Choice Questions by circling the correct response. 1) During Spring Break you and your friends plan to travel south to Cancun, Mexico for a week of sun and fun. You arrive in Cancun on a clear night. You look up at the stars and notice that they appear different that th ...
... Answer the following Multiple Choice Questions by circling the correct response. 1) During Spring Break you and your friends plan to travel south to Cancun, Mexico for a week of sun and fun. You arrive in Cancun on a clear night. You look up at the stars and notice that they appear different that th ...
Northern Circumpolar Constellations
... Dipper) • Ursa Minor, the Little Bear • Cassiopeia, the Queen of Ethiopia • Cepheus, the King of Ethiopia • Draco the Dragon ...
... Dipper) • Ursa Minor, the Little Bear • Cassiopeia, the Queen of Ethiopia • Cepheus, the King of Ethiopia • Draco the Dragon ...
Components of Optical Instruments, Cont…
... A prism is a wavelengths selector that depends on the dispersion ability of the incident radiation by the prism material. Dispersion: The variation of refractive index with wavelength, or frequency. Polychromatic light: is composed of several wavelengths, so dispersion of these wavelengths will be d ...
... A prism is a wavelengths selector that depends on the dispersion ability of the incident radiation by the prism material. Dispersion: The variation of refractive index with wavelength, or frequency. Polychromatic light: is composed of several wavelengths, so dispersion of these wavelengths will be d ...
Distance
... Ques4ons • How much does the apparent brightness of stars we see in the sky vary? Why? • Stars have different colors? So is the amount of light at different wavelengths the same? • Can we tell the difference between a very luminous star that is far away and in intrinsically low luminosity st ...
... Ques4ons • How much does the apparent brightness of stars we see in the sky vary? Why? • Stars have different colors? So is the amount of light at different wavelengths the same? • Can we tell the difference between a very luminous star that is far away and in intrinsically low luminosity st ...
PPT - Chandra X
... 2. Fit the ungrouped spectrum (CSTAT statistics, Powell optimization, kT1 [0.01-1 keV] and kT2 [1-10 kev], fixed Abund = 0.3 Solar) 3. Fit the grouped spectrum (Chi-squared data-variance statistics, Levenberg-Marquardt optimization, kT1 [0.01-2] and kT2 [1-10] keV 4. If E(B-V) is unknown, fit again ...
... 2. Fit the ungrouped spectrum (CSTAT statistics, Powell optimization, kT1 [0.01-1 keV] and kT2 [1-10 kev], fixed Abund = 0.3 Solar) 3. Fit the grouped spectrum (Chi-squared data-variance statistics, Levenberg-Marquardt optimization, kT1 [0.01-2] and kT2 [1-10] keV 4. If E(B-V) is unknown, fit again ...
Microsoft Word Format - McMaster University > ECE
... Fundamental mode (LP01) has no cut-off wavelength, higher (1st) order mode (LP11) has cut-off wavelength given by: c 2aNA/ Vc , where Vc is calculated from the eigen value equation for LP11 mode, Vc 2.4 for any fiber with step-index profile (the 1st root of zero-order Bessel function). In orde ...
... Fundamental mode (LP01) has no cut-off wavelength, higher (1st) order mode (LP11) has cut-off wavelength given by: c 2aNA/ Vc , where Vc is calculated from the eigen value equation for LP11 mode, Vc 2.4 for any fiber with step-index profile (the 1st root of zero-order Bessel function). In orde ...
ppt - WISH
... - One of the very few ways to test GR at very large scale. 2. Galaxy evolution, cluster formation: effects of environment, large scale structure These scientific goals require: large samples and high redshift ...
... - One of the very few ways to test GR at very large scale. 2. Galaxy evolution, cluster formation: effects of environment, large scale structure These scientific goals require: large samples and high redshift ...
ASTR-1020: Astronomy II Course Lecture Notes - Faculty
... We know this since one solar mass stars should last on the main sequence (see §III.C.) for 10 billion years and the Sun is currently 5 billion years old. As such, we have 5 billion more years before the Sun becomes a red giant, at which such time, it will “swallow” the most of the inner planets of t ...
... We know this since one solar mass stars should last on the main sequence (see §III.C.) for 10 billion years and the Sun is currently 5 billion years old. As such, we have 5 billion more years before the Sun becomes a red giant, at which such time, it will “swallow” the most of the inner planets of t ...
Comets, Asteroids, and Meteors
... Mars and Jupiter. They named these objects Ceres, Pallas, Juno, and Vesta. Over the next 80 years, astronomers found over 300 more. These rocky objects, called asteroids, are too small and too numerous to be considered planets. Most asteroids revolve around the sun between the orbits of Mars and Jup ...
... Mars and Jupiter. They named these objects Ceres, Pallas, Juno, and Vesta. Over the next 80 years, astronomers found over 300 more. These rocky objects, called asteroids, are too small and too numerous to be considered planets. Most asteroids revolve around the sun between the orbits of Mars and Jup ...
black holes are created when stars collapse and die from burning its
... • the core is extremely cold at absolute zero, and the more distance spread outward, the more hot it gets, reaching temperatures ranging in the hundreds of billions at some points • the atmosphere of galaxies is just clusters of gases, mostly hydrogen and helium, that are trapped in the gravitationa ...
... • the core is extremely cold at absolute zero, and the more distance spread outward, the more hot it gets, reaching temperatures ranging in the hundreds of billions at some points • the atmosphere of galaxies is just clusters of gases, mostly hydrogen and helium, that are trapped in the gravitationa ...
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.