Diapositiva 1
... Near the center of this sharp cosmic portrait, at the heart of the Orion Nebula, are four hot, massive starsknown as the Trapezium. Gathered within a region about 1.5 light-years in radius, they dominate the core of the dense Orion Nebula Star Cluster. Ultraviolet ionizing radiation from the Trapez ...
... Near the center of this sharp cosmic portrait, at the heart of the Orion Nebula, are four hot, massive starsknown as the Trapezium. Gathered within a region about 1.5 light-years in radius, they dominate the core of the dense Orion Nebula Star Cluster. Ultraviolet ionizing radiation from the Trapez ...
The Hertzsprung-Russell Diagram
... Equal Radius Lines In general the hotter the star is the brighter it will be. Thus you would expect stars of the same size but different temperatures to form a diagonal line called an equal radius line. Equal Radius lines can be added to an H-R diagram ...
... Equal Radius Lines In general the hotter the star is the brighter it will be. Thus you would expect stars of the same size but different temperatures to form a diagonal line called an equal radius line. Equal Radius lines can be added to an H-R diagram ...
NAME PER 2nd Semester Exam Study Guide. HW 40 points – due
... 47.) If a dog moves at the speed of 3 m/sec, how long will it take to travel 100m? 100/3 = 33.3sec 48.) What is the effect of inertia on your body as a car you are traveling in goes around a curve? Your body wants to continue traveling in a ...
... 47.) If a dog moves at the speed of 3 m/sec, how long will it take to travel 100m? 100/3 = 33.3sec 48.) What is the effect of inertia on your body as a car you are traveling in goes around a curve? Your body wants to continue traveling in a ...
Ch18 Life - UCF Physics
... – Ne = The number of Earth-like planets (planets with liquid water) within each planetary system (we are learning about this now…..expect an answer in 3-5 years) – Fl = The fraction of Earth-like planets where life develops (we could have some idea in 20 years) – Fi = The fraction of life sites wher ...
... – Ne = The number of Earth-like planets (planets with liquid water) within each planetary system (we are learning about this now…..expect an answer in 3-5 years) – Fl = The fraction of Earth-like planets where life develops (we could have some idea in 20 years) – Fi = The fraction of life sites wher ...
Problem Set 3 Solutions Problem 1: D
... while red light is better able to pass straight through. Therefore the light that hits the Moon is reddened, giving the Moon a redder color during lunar eclipses. ...
... while red light is better able to pass straight through. Therefore the light that hits the Moon is reddened, giving the Moon a redder color during lunar eclipses. ...
Due Date: Thursday, November 16, 2006
... 3. Is this statement sensible? Why, or why not? (20pt) If the Sun had been born as a high-mass star some 4.6 billion years ago, rather than as a low mass star, the planet Jupiter would probably have Earth-like conditions today, while earth would be hot like Venus. If the Sun was formed as a high-mas ...
... 3. Is this statement sensible? Why, or why not? (20pt) If the Sun had been born as a high-mass star some 4.6 billion years ago, rather than as a low mass star, the planet Jupiter would probably have Earth-like conditions today, while earth would be hot like Venus. If the Sun was formed as a high-mas ...
Stellar Brightness Apparent magnitude
... same distance away to do a fair test for their brightness? This is what astronomers do with the Absolute Magnitude scale They ‘pretend’ to line up the stars exactly 10 parsecs (32.6 l.y.)away and figure out how bright each start would look ...
... same distance away to do a fair test for their brightness? This is what astronomers do with the Absolute Magnitude scale They ‘pretend’ to line up the stars exactly 10 parsecs (32.6 l.y.)away and figure out how bright each start would look ...
UNIT 3 INPUT 2: Notes on Black Holes (BH): Process of Formation
... x-rays = dust particles pulled into black holes seed up and heat up and emit x-rays Rotating stars= Stars rotate around black holes when they are at a certain distance from the event horizon Gravity lenses: When a big object passes between a star and the Earth, the object acts like a lens and causes ...
... x-rays = dust particles pulled into black holes seed up and heat up and emit x-rays Rotating stars= Stars rotate around black holes when they are at a certain distance from the event horizon Gravity lenses: When a big object passes between a star and the Earth, the object acts like a lens and causes ...
Homework 6
... The first choice, the white dwarf, is much to small to be visible in a nearby galaxy, let alone a distant galaxy. The second, the Cepheid variable, is a standard candle, but only works for nearby galaxies. White dwarf supernovas are extremely bright and their luminosity is almost always the same (it ...
... The first choice, the white dwarf, is much to small to be visible in a nearby galaxy, let alone a distant galaxy. The second, the Cepheid variable, is a standard candle, but only works for nearby galaxies. White dwarf supernovas are extremely bright and their luminosity is almost always the same (it ...
4. Sketch and label the life cycle of a star. Give a short phrase
... Black Hole: The largest of all super novas result in a remaining core so dense and with so much gravity that not even light can escape it’s pull! ...
... Black Hole: The largest of all super novas result in a remaining core so dense and with so much gravity that not even light can escape it’s pull! ...
Geochemistry & Lab
... reddish, or magenta, hue. The Y dwarf is dimmer still. Because astronomers have not yet detected Y dwarfs at the visible wavelengths we see with our eyes, the choice of a purple hue is done mainly for artistic reasons. The Y dwarf is also illustrated as reflecting a faint amount of visible starlight ...
... reddish, or magenta, hue. The Y dwarf is dimmer still. Because astronomers have not yet detected Y dwarfs at the visible wavelengths we see with our eyes, the choice of a purple hue is done mainly for artistic reasons. The Y dwarf is also illustrated as reflecting a faint amount of visible starlight ...
March 4
... • Luminosity (emitted energy/second) of an star is proportional to T4 and the surface area of the star L= σAT4 (σ =5.67 × 10−8 W m−2 K−4) • The color of the star is related to 1/T Wavelength peak = [2,900,000 /T (Kelvin)] nm 1 nanometer = 1 x 10-9 meters ...
... • Luminosity (emitted energy/second) of an star is proportional to T4 and the surface area of the star L= σAT4 (σ =5.67 × 10−8 W m−2 K−4) • The color of the star is related to 1/T Wavelength peak = [2,900,000 /T (Kelvin)] nm 1 nanometer = 1 x 10-9 meters ...
The Formation of Low Mass Stars: Overview and Recent
... Evidence for infall seen, but hard to study Outflow starts early, strong effect on lines Rotation on small scales ...
... Evidence for infall seen, but hard to study Outflow starts early, strong effect on lines Rotation on small scales ...
Quantum Well Electron Gain Structures and Infrared
... Blue Variable (source of radio nebula) • Projected image size ~3pc on a side (!!) ...
... Blue Variable (source of radio nebula) • Projected image size ~3pc on a side (!!) ...
Earth`s Moon and Solar System Outline
... The Milky Way The Milky Way is a __________ galaxy Our solar system is located in a spiral ____ well away from the galactic ___________ The Earth and sun and other nearby stars __________ around the _________ of the Milky Way galaxy It takes about _______ million years to complete this _____ ...
... The Milky Way The Milky Way is a __________ galaxy Our solar system is located in a spiral ____ well away from the galactic ___________ The Earth and sun and other nearby stars __________ around the _________ of the Milky Way galaxy It takes about _______ million years to complete this _____ ...
Earth`s Moon and Solar System Outline
... The Milky Way ● The Milky Way is a __________ galaxy ● Our solar system is located in a spiral ____ well away from the galactic ___________ ● The Earth and sun and other nearby stars __________ around the _________ of the Milky Way galaxy ● It takes about _______ million years to complete this _____ ...
... The Milky Way ● The Milky Way is a __________ galaxy ● Our solar system is located in a spiral ____ well away from the galactic ___________ ● The Earth and sun and other nearby stars __________ around the _________ of the Milky Way galaxy ● It takes about _______ million years to complete this _____ ...
Devil physics The baddest class on campus IB Physics
... Stellar Spectra – Chemical Composition Most stars have the same composition, but different spectra caused by temperature In hot stars the hydrogen is ionized. Atoms cannot ...
... Stellar Spectra – Chemical Composition Most stars have the same composition, but different spectra caused by temperature In hot stars the hydrogen is ionized. Atoms cannot ...
Jeopardy 2015
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
... Type G2 star, middle of HR diagram-average size and luminosity, end of life will be white dwarf, only known star to support a planet with life. Why is our star (the sun) frequently referred to as an “average” star? Compare the important physical characteristics of the Sun with the most common types ...
Name: 1) Which statement best describes the geocentric model of
... Earth is younger than Mercury or the Moon meteorites have not struck Earth all meteorites burn up in Earth's atmosphere weathering processes on Earth have removed most craters ...
... Earth is younger than Mercury or the Moon meteorites have not struck Earth all meteorites burn up in Earth's atmosphere weathering processes on Earth have removed most craters ...
Evolution and the Big Bang, ET Life Lec. 6, Jan 18, 2002
... decay to infer an age. Rate of radioactive decay of an isotope characterized by its half life. Example 14C has a half life of about 5000 years. After 5000 years half of the original 14C is gone and after 10,000 years ¾ of original amount has decayed. Note, need to chose an isotope with a half life c ...
... decay to infer an age. Rate of radioactive decay of an isotope characterized by its half life. Example 14C has a half life of about 5000 years. After 5000 years half of the original 14C is gone and after 10,000 years ¾ of original amount has decayed. Note, need to chose an isotope with a half life c ...
The Sights of the Deep Sky - Peterborough Astronomical Society
... sky were once massive blue or white stars that now near the end of their lives. Most of the stars of the galaxy are dim red stars, much less massive than our Sun, and too faint to see without a large telescope. Stars have “life cycles”. They are born out of cold dust and gas in the Milky Way, then b ...
... sky were once massive blue or white stars that now near the end of their lives. Most of the stars of the galaxy are dim red stars, much less massive than our Sun, and too faint to see without a large telescope. Stars have “life cycles”. They are born out of cold dust and gas in the Milky Way, then b ...
five minute episode script
... JAMES: IF YOU AIM YOUR GAZE TOWARD THE SOUTH, YOU'LL SEE MY FAVORITE CONSTELLATION OF SUMMER, SCORPIUS THE SCORPION. SCORPIUS IS EASILY FOUND IF YOU LOOK FOR A J-SHAPED PATTERN OF STARS. THE TOP THREE STARS MARKING HIS FACE ARE GRAFFIAS, DSCHUBBA AND PI SCORPII. SEE DEAN, I SAID DSCHUBBA THIS TIME. ...
... JAMES: IF YOU AIM YOUR GAZE TOWARD THE SOUTH, YOU'LL SEE MY FAVORITE CONSTELLATION OF SUMMER, SCORPIUS THE SCORPION. SCORPIUS IS EASILY FOUND IF YOU LOOK FOR A J-SHAPED PATTERN OF STARS. THE TOP THREE STARS MARKING HIS FACE ARE GRAFFIAS, DSCHUBBA AND PI SCORPII. SEE DEAN, I SAID DSCHUBBA THIS TIME. ...
The big bang left the universe with its first atoms
... third dredge-up can occur. This time mostly carbon and carbon molecules are brought to the surface. These stars are called AGB or carbon stars. They have very active solar winds and are typically surrounded by a sooty planetary nebula. Thanks to Michael Richmond for the following image ...
... third dredge-up can occur. This time mostly carbon and carbon molecules are brought to the surface. These stars are called AGB or carbon stars. They have very active solar winds and are typically surrounded by a sooty planetary nebula. Thanks to Michael Richmond for the following image ...
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.