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... relation to the required minimum velocity for Type III radio emission and hence at what distance along the field line a wave resulting in this sort of emission is created. Thus we can postulate where Type III emission originates. The y-axis is number density (the data were binned into histograms) an ...
... relation to the required minimum velocity for Type III radio emission and hence at what distance along the field line a wave resulting in this sort of emission is created. Thus we can postulate where Type III emission originates. The y-axis is number density (the data were binned into histograms) an ...
Plane mirrors
... 1. Convex Mirror- a mirror with a surface that curves outward. 2. Rays never meet in a convex mirror thus forming images that are virtual and smaller than the object. 3. Convex mirrors can never create a real image. 4. Used in passenger side car mirrors, security mirrors and safety mirrors. 5. Objec ...
... 1. Convex Mirror- a mirror with a surface that curves outward. 2. Rays never meet in a convex mirror thus forming images that are virtual and smaller than the object. 3. Convex mirrors can never create a real image. 4. Used in passenger side car mirrors, security mirrors and safety mirrors. 5. Objec ...
Tips on taking Astro sights
... two position lines are obtained from shore objects, her position is called a 'fix.' If they are obtained from heavenly bodies, it is called an 'observed position.' The distinction is made because a position ...
... two position lines are obtained from shore objects, her position is called a 'fix.' If they are obtained from heavenly bodies, it is called an 'observed position.' The distinction is made because a position ...
Solutions Assignment #3
... Chapter 15 problem 44 If a star doubled in size with no change in luminosity, its surface temperature would go down, because the surface area of the star would increase but its energy output would stay the same, so a lower temperature would be required to maintain its energy output. Mathematically, ...
... Chapter 15 problem 44 If a star doubled in size with no change in luminosity, its surface temperature would go down, because the surface area of the star would increase but its energy output would stay the same, so a lower temperature would be required to maintain its energy output. Mathematically, ...
Rachel and the TreeSchoolers Theme Song
... It all begins with wonder With a question on your mind You will find the world is wonderful I wonder Do you wonder? The world is full of wonder Every day is a surprise You and I will find the wonderful I wonder about different planets I wonder about things too far to see I wonder what makes stars br ...
... It all begins with wonder With a question on your mind You will find the world is wonderful I wonder Do you wonder? The world is full of wonder Every day is a surprise You and I will find the wonderful I wonder about different planets I wonder about things too far to see I wonder what makes stars br ...
Rosette Nebula - Westchester Amateur Astronomers
... Top row, left: H1 strain. Top row, right: L1 strain. GW150914 arrived first at L1 and 6.9 (+0.5/-0.4) ms later at H1; for a visual comparison, the H1 data are also shown, shifted in time by this amount and inverted (to account for the detectors’ relative orientations). Second row: Gravitational-wave ...
... Top row, left: H1 strain. Top row, right: L1 strain. GW150914 arrived first at L1 and 6.9 (+0.5/-0.4) ms later at H1; for a visual comparison, the H1 data are also shown, shifted in time by this amount and inverted (to account for the detectors’ relative orientations). Second row: Gravitational-wave ...
Slide 1
... over the disk population? • The cooling sequences are “pinned” to the CMD by the main sequence and white dwarfs fitted together – sliding is not allowed. • If we ignore the observational errors, the CMD location of a star uniquely determines its mass and radius: setting the mechanical properties of ...
... over the disk population? • The cooling sequences are “pinned” to the CMD by the main sequence and white dwarfs fitted together – sliding is not allowed. • If we ignore the observational errors, the CMD location of a star uniquely determines its mass and radius: setting the mechanical properties of ...
The Sky This Month
... • From the period of pulsation we can find how bright it really is and compare to how bright it appears and therefore find its distance. • Forms a rung on the Astrophysical distance measurement ladder. ...
... • From the period of pulsation we can find how bright it really is and compare to how bright it appears and therefore find its distance. • Forms a rung on the Astrophysical distance measurement ladder. ...
Astrophysics in the Time Domain: Results and lessons
... Classifying events using follow-up • Multi-band observations - “poor man’s spectroscopy” • The ratio of intensity in different “filters” gives a crude measure of the event’s wavelength spectrum – The ratios for “vanilla” stars (i.e. microlensing) differ from supernovae ...
... Classifying events using follow-up • Multi-band observations - “poor man’s spectroscopy” • The ratio of intensity in different “filters” gives a crude measure of the event’s wavelength spectrum – The ratios for “vanilla” stars (i.e. microlensing) differ from supernovae ...
Lecture 28 - Empyrean Quest Publishers
... that a highly concentrated spherical mass would shrink to a point and have an event horizon around it beyond which nothing could escape (Vescape> c). The Schwarzschild radius, R(event horizon) = 3 km x mass (in solar masses). Oppenheimer (~1940) demonstrated that a stellar remnant above 3 solar mass ...
... that a highly concentrated spherical mass would shrink to a point and have an event horizon around it beyond which nothing could escape (Vescape> c). The Schwarzschild radius, R(event horizon) = 3 km x mass (in solar masses). Oppenheimer (~1940) demonstrated that a stellar remnant above 3 solar mass ...
Finding the Mass of an Exoplanet
... Since 1995, when the first extrasolar planet was discovered around a main sequence star, astronomers have found over 500 exoplanets. These newly discovered worlds give us great insight on our own star system. There are many ways to find planets orbiting other stars, but only two methods have been us ...
... Since 1995, when the first extrasolar planet was discovered around a main sequence star, astronomers have found over 500 exoplanets. These newly discovered worlds give us great insight on our own star system. There are many ways to find planets orbiting other stars, but only two methods have been us ...
PowerPoint Presentation - Neutron stars, pulsars and black
... • The discovery of pulsars that were spinning more than 100 times per second (the first was spinning 640 times per second) threw the field for a loop. When some millisecond pulsars were discovered in old star clusters it was even more confusing. • Eventually it was determined that all millisecond pu ...
... • The discovery of pulsars that were spinning more than 100 times per second (the first was spinning 640 times per second) threw the field for a loop. When some millisecond pulsars were discovered in old star clusters it was even more confusing. • Eventually it was determined that all millisecond pu ...
Cat`s Eye Nebula (NGC 6543)
... determine whether their students harbor any of them. Students may have misconceptions regarding the evolution and fate of stars.The name planetary nebula in itself is misleading. Students may think that planetary nebulae are associated with planets, when, in fact, they have nothing to do with them. ...
... determine whether their students harbor any of them. Students may have misconceptions regarding the evolution and fate of stars.The name planetary nebula in itself is misleading. Students may think that planetary nebulae are associated with planets, when, in fact, they have nothing to do with them. ...
Chapter 17 A modern optics laboratory for undergraduate students
... than the natural lifetime of an isolated atom (≈ 10-8 seconds). Therefore, the width of the photon can reach a few nanometers and can easily be resolved with a spectrophotometer. An atomic gas at high temperature and low pressure (i.e. an atomic discharge tube) that obeys the Maxwell-Boltzman statis ...
... than the natural lifetime of an isolated atom (≈ 10-8 seconds). Therefore, the width of the photon can reach a few nanometers and can easily be resolved with a spectrophotometer. An atomic gas at high temperature and low pressure (i.e. an atomic discharge tube) that obeys the Maxwell-Boltzman statis ...
Slide 1
... - It releases 1046 Joules of energy over 10 seconds. This could completely disintegrate the sun 100,000 times over. This is as much energy as 400 billion suns can put out in 5 billion years! Or in other words, its as much energy as our entire galaxy has made for 1/3 of the life of the entire univers ...
... - It releases 1046 Joules of energy over 10 seconds. This could completely disintegrate the sun 100,000 times over. This is as much energy as 400 billion suns can put out in 5 billion years! Or in other words, its as much energy as our entire galaxy has made for 1/3 of the life of the entire univers ...
Lecture_12
... The derivation of energy (Jacobi) integral in R3B does not differ significantly from the analogous derivation of energy conservation law in the inertial frame, e.g., we also form the dot product of the equations of motion with velocity and convert the l.h.s. to full time derivative of specific kinet ...
... The derivation of energy (Jacobi) integral in R3B does not differ significantly from the analogous derivation of energy conservation law in the inertial frame, e.g., we also form the dot product of the equations of motion with velocity and convert the l.h.s. to full time derivative of specific kinet ...
Life in the Universe
... On a clear night, with 20/20 vision, one can see about 3,000 stars at a given time. Ancient astronomers traced out “pictures” using groups of these stars. “Group of Stars” in Latin constellations ...
... On a clear night, with 20/20 vision, one can see about 3,000 stars at a given time. Ancient astronomers traced out “pictures” using groups of these stars. “Group of Stars” in Latin constellations ...
Day_3
... g-band magnitude (brightness) is between 15 and 18. “A very red star with r - z > 1.5” – this means “find a red star whose color (r minus z) is greater than 1.5” In the next 3 slides, don’t let the “math” bother you, want ...
... g-band magnitude (brightness) is between 15 and 18. “A very red star with r - z > 1.5” – this means “find a red star whose color (r minus z) is greater than 1.5” In the next 3 slides, don’t let the “math” bother you, want ...
Experiment 36 – Extraterrestrial microwaves
... first to convince astronomers of the existence of this phenomenon. From 1939 on, with the development of radar the search for radio sources in the range of dm and cm became possible. The ...
... first to convince astronomers of the existence of this phenomenon. From 1939 on, with the development of radar the search for radio sources in the range of dm and cm became possible. The ...
except
... matter how to move: What we perceive as gravity arises from the curvature of space-time. Masses follow the ‘straightest possible paths’ possible given the curvature. ...
... matter how to move: What we perceive as gravity arises from the curvature of space-time. Masses follow the ‘straightest possible paths’ possible given the curvature. ...
reflection, refraction, lense and optical instruments
... is now on the inside of the glass, not the angle the outside of the glass is hit at) where this happens is given the name critical angle since for any θinc > θcritical, the sine would have to greater than 1. Since this can not be, light must be trapped inside the glass, it must be totally reflected. ...
... is now on the inside of the glass, not the angle the outside of the glass is hit at) where this happens is given the name critical angle since for any θinc > θcritical, the sine would have to greater than 1. Since this can not be, light must be trapped inside the glass, it must be totally reflected. ...
Chapter 21 - apel slice
... Reflecting Telescopes In 1668, Isaac Newton built the first reflecting telescope. A reflecting telescope uses a curved mirror to collect and focus light. Like the objective lens in a refracting telescope, the curved mirror in a reflecting telescope focuses a large amount of light onto a small area. ...
... Reflecting Telescopes In 1668, Isaac Newton built the first reflecting telescope. A reflecting telescope uses a curved mirror to collect and focus light. Like the objective lens in a refracting telescope, the curved mirror in a reflecting telescope focuses a large amount of light onto a small area. ...
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.