Life Cycle of a Star - Intervention Worksheet
... of gas called a planetary nebula. The blue-white hot core of the star that is left behind cools and becomes a white dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a ...
... of gas called a planetary nebula. The blue-white hot core of the star that is left behind cools and becomes a white dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a ...
Sample multiple choice questions for Exam 2
... e) all stars; mass has nothing to do with it. 39. Heavy elements which are mixed into the material from which new generations of stars may be formed come primarily from a) the big bang. b) planetary nebulae. c) supernovae. d) spectroscopic binary stars. e) Lead, South Dakota 40. If we are really unl ...
... e) all stars; mass has nothing to do with it. 39. Heavy elements which are mixed into the material from which new generations of stars may be formed come primarily from a) the big bang. b) planetary nebulae. c) supernovae. d) spectroscopic binary stars. e) Lead, South Dakota 40. If we are really unl ...
Electromagnetic Spectrum
... • Stars take the color of their peak wavelength. For example the Sun’s peak wavelength is in the yellow region of the visible spectrum, therefore the sun appears to be yellow. • Hotter objects peak on the blue side and cooler objects toward the red • Some objects in the sky are even hotter, and they ...
... • Stars take the color of their peak wavelength. For example the Sun’s peak wavelength is in the yellow region of the visible spectrum, therefore the sun appears to be yellow. • Hotter objects peak on the blue side and cooler objects toward the red • Some objects in the sky are even hotter, and they ...
Life Cycle of a Star - Intervention Worksheet
... A dying red super giant star can suddenly explode. The explosion is called a supernova. After the star explodes, some of the materials from the star are left behind. This material may form a neutron star. Neutron stars are the remains of high-mass stars. The most massive stars become black holes whe ...
... A dying red super giant star can suddenly explode. The explosion is called a supernova. After the star explodes, some of the materials from the star are left behind. This material may form a neutron star. Neutron stars are the remains of high-mass stars. The most massive stars become black holes whe ...
Lives of stars HR
... Stars in the upper right are very large and stars in the lower left are very small. This defines only the SIZE of the star and not the MASS, since the density of stars can be very different. So the branch of stars to the upper right of the MS are giant and supergiant stars. ...
... Stars in the upper right are very large and stars in the lower left are very small. This defines only the SIZE of the star and not the MASS, since the density of stars can be very different. So the branch of stars to the upper right of the MS are giant and supergiant stars. ...
galaxy_physics
... • Obvious tracers : stars and/or gas – Doppler velocities (proper motions) – Note : both rotation &/or dispersion present – Use Jeans Equation M(r) ...
... • Obvious tracers : stars and/or gas – Doppler velocities (proper motions) – Note : both rotation &/or dispersion present – Use Jeans Equation M(r) ...
Black Holes: Vacuums of the Universe
... event horizon, since after you cross that, even if you go the speed of light, you are pulled towards the singularity. However, you can enter and leave this region whenever you like, unlike the abandon-all-hope-ye-who-enter-here static limit/event horizon of the other two black holes. You can merrily ...
... event horizon, since after you cross that, even if you go the speed of light, you are pulled towards the singularity. However, you can enter and leave this region whenever you like, unlike the abandon-all-hope-ye-who-enter-here static limit/event horizon of the other two black holes. You can merrily ...
The Chandra Orion Ultradeep Project Eric Feigelson
... Even these weak COUP flares are ~10x stronger than the most powerful flares from the contemporary Sun. ...
... Even these weak COUP flares are ~10x stronger than the most powerful flares from the contemporary Sun. ...
Lecture 12
... Spectrum of Crab pulsar is nonthermal. Suggestive of synchrotron radiation - relativistic charged particles emit radiation dependent on particle energy. Charged particles (e-) accelerated along magnetic field lines, radiation is beamed in the the acceleration direction. If axes are not aligned, lead ...
... Spectrum of Crab pulsar is nonthermal. Suggestive of synchrotron radiation - relativistic charged particles emit radiation dependent on particle energy. Charged particles (e-) accelerated along magnetic field lines, radiation is beamed in the the acceleration direction. If axes are not aligned, lead ...
BLACK HOLES: The Other Side of Infinity
... rotating black holes at 10% the speed of light. • Confirmed the signatures predicted near black holes by Albert Einstein's theory of Relativity in the light of the cosmic X-ray background. • Measured black holes spinning space around it like a flywheel. • Launched in December 1999 by ...
... rotating black holes at 10% the speed of light. • Confirmed the signatures predicted near black holes by Albert Einstein's theory of Relativity in the light of the cosmic X-ray background. • Measured black holes spinning space around it like a flywheel. • Launched in December 1999 by ...
Black Holes
... M = combined mass (BH + star) a = semimajor axis of stellar orbit P = orbital period Star S0-2 has a=920 AU, P=14.5yr M = 3.7x106 solar masses ...
... M = combined mass (BH + star) a = semimajor axis of stellar orbit P = orbital period Star S0-2 has a=920 AU, P=14.5yr M = 3.7x106 solar masses ...
Today`s Powerpoint
... stars produce huge amounts of these. Such short-lived stars spend all their lives in the stellar nursery of their birth, so emission nebulae mark sites of ongoing star formation. Many stars of lower mass are forming too, but make few UV photons. Why "H II Region? H I: Hydrogen atom H II: Ionized Hyd ...
... stars produce huge amounts of these. Such short-lived stars spend all their lives in the stellar nursery of their birth, so emission nebulae mark sites of ongoing star formation. Many stars of lower mass are forming too, but make few UV photons. Why "H II Region? H I: Hydrogen atom H II: Ionized Hyd ...
Starry Lives, Starry Skies
... The handout sheet has examples of objects in each stage, but it would be good for students to use the Web or some astronomy books to find examples for themselves. 4. Have them make a star map of the location of one object for each stage, using the Your Sky Tonight star chart. Most sky objects a ...
... The handout sheet has examples of objects in each stage, but it would be good for students to use the Web or some astronomy books to find examples for themselves. 4. Have them make a star map of the location of one object for each stage, using the Your Sky Tonight star chart. Most sky objects a ...
Stellar Evolution
... • As the helium core grows, it compresses. Helium doesn’t fuse to heavier elements for two reasons. (1) with 2 p+ per nucleus, the electric repulsion force is higher than was the case for H-fusion. This means that helium fusion requires a higher temperature than hydrogen fusion -- 100 million K (2) ...
... • As the helium core grows, it compresses. Helium doesn’t fuse to heavier elements for two reasons. (1) with 2 p+ per nucleus, the electric repulsion force is higher than was the case for H-fusion. This means that helium fusion requires a higher temperature than hydrogen fusion -- 100 million K (2) ...
ASTR3007/4007/6007, Tutorial 4: Deuterium Burning in Protostars
... reactions begin. Deuterium requires that the temperature reach ≈ 106 K. Exercise 4. Using your results from the previous parts, what radius must a 1 M star reach a central temperature high enough to ignite deuterium? Express your answer in units of Solar radii, R = 6.96 × 1010 cm. Exercise 5. Prot ...
... reactions begin. Deuterium requires that the temperature reach ≈ 106 K. Exercise 4. Using your results from the previous parts, what radius must a 1 M star reach a central temperature high enough to ignite deuterium? Express your answer in units of Solar radii, R = 6.96 × 1010 cm. Exercise 5. Prot ...
Planetary system
... It might seem natural that the rotation nebula would collapse into an ever smaller ball under it’s self gravity, but…… The cloud’s own angular momentum causes it to flatten out, like pizza dough being spun through the air. ...
... It might seem natural that the rotation nebula would collapse into an ever smaller ball under it’s self gravity, but…… The cloud’s own angular momentum causes it to flatten out, like pizza dough being spun through the air. ...
General Introduction 1. Luminosity, Flux and Magnitude The
... The evolution of the Sun is shown schematically in Fig. 7.3. The red giant phase occurs after the interior of the Sun is exhausted of hydrogen and helium burning initiates. The Sun is not massive enough to burn elements beyond He, so after shedding roughly half its mass in a violent wind leading to ...
... The evolution of the Sun is shown schematically in Fig. 7.3. The red giant phase occurs after the interior of the Sun is exhausted of hydrogen and helium burning initiates. The Sun is not massive enough to burn elements beyond He, so after shedding roughly half its mass in a violent wind leading to ...
MIDTERM #1 AST209 - The Cosmos Feb 10, 2012 50 minutes
... C) They will not speed up at all, but move at a constant speed because they are in space and the rocket has nothing against which to push. D) It is impossible to say with only the information provided E) The one with the higher mass. 29. Why is it summer in the Northern Hemisphere when it is winter ...
... C) They will not speed up at all, but move at a constant speed because they are in space and the rocket has nothing against which to push. D) It is impossible to say with only the information provided E) The one with the higher mass. 29. Why is it summer in the Northern Hemisphere when it is winter ...
Full 11x8.5" Calendar, High Resolution - Chandra X
... This highly distorted supernova remnant may contain the most recent black hole formed in the Milky Way galaxy. The composite image combines X-rays from Chandra (blue and green), radio data from the Very Large Array (pink), and infrared data from the Palomar Observatory (yellow). Most supernova explo ...
... This highly distorted supernova remnant may contain the most recent black hole formed in the Milky Way galaxy. The composite image combines X-rays from Chandra (blue and green), radio data from the Very Large Array (pink), and infrared data from the Palomar Observatory (yellow). Most supernova explo ...
Black Hole
... converted to Helium, for about a Million years other elements such as Carbon And others are cooked within the Star. The Supernova then throws them out in the Faraway Sky. Thus all the elements of which our Human Bodies are made were Cooked in faraway stars once upon a time! ...
... converted to Helium, for about a Million years other elements such as Carbon And others are cooked within the Star. The Supernova then throws them out in the Faraway Sky. Thus all the elements of which our Human Bodies are made were Cooked in faraway stars once upon a time! ...
Reach for the Stars – Div. B
... Tarantula Nebula would cast shadows. It is the most active and largest starburst region known in the Local Group of galaxies. It has an estimated diameter of 200 pc or 650 light years. The nebula resides in the Large Magellanic Cloud. ...
... Tarantula Nebula would cast shadows. It is the most active and largest starburst region known in the Local Group of galaxies. It has an estimated diameter of 200 pc or 650 light years. The nebula resides in the Large Magellanic Cloud. ...
The Birth, Life, and Death of Stars
... Yet, is awarded the 1921 Nobel Prize in Physics: ... for his discovery of the law of the photoelectric effect 1905 Einstein’s Miracle Year while working as a patent clerk in Bern Culmination of the “Special Theory of Relativity” (E = mc 2 ) Revises fundamental Newtonian concepts of space and time 19 ...
... Yet, is awarded the 1921 Nobel Prize in Physics: ... for his discovery of the law of the photoelectric effect 1905 Einstein’s Miracle Year while working as a patent clerk in Bern Culmination of the “Special Theory of Relativity” (E = mc 2 ) Revises fundamental Newtonian concepts of space and time 19 ...
The Story of Pulsational Pair-Instability SNe
... They say in the paper that they use a 110 solar mass star with solar composition, but with a mass loss rate at a fraction of the standard value. Do they have any justification for the validity of doing this? ...
... They say in the paper that they use a 110 solar mass star with solar composition, but with a mass loss rate at a fraction of the standard value. Do they have any justification for the validity of doing this? ...
Stars and The Universe
... of fusion have less mass than the nuclei that fused. This “lost” mass is actually converted to energy, according to ...
... of fusion have less mass than the nuclei that fused. This “lost” mass is actually converted to energy, according to ...
Cygnus X-1
Cygnus X-1 (abbreviated Cyg X-1) is a well-known galactic X-ray source, thought to be a black hole, in the constellation Cygnus. It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources seen from Earth, producing a peak X-ray flux density of 6977229999999999999♠2.3×10−23 Wm−2 Hz−1 (7003230000000000000♠2.3×103 Jansky). Cygnus X-1 was the first X-ray source widely accepted to be a black hole and it remains among the most studied astronomical objects in its class. The compact object is now estimated to have a mass about 14.8 times the mass of the Sun and has been shown to be too small to be any known kind of normal star, or other likely object besides a black hole. If so, the radius of its event horizon is about 7004440000000000000♠44 km.Cygnus X-1 belongs to a high-mass X-ray binary system about 7019574266339685654♠6070 ly from the Sun that includes a blue supergiant variable star designated HDE 226868 which it orbits at about 0.2 AU, or 20% of the distance from the Earth to the Sun. A stellar wind from the star provides material for an accretion disk around the X-ray source. Matter in the inner disk is heated to millions of degrees, generating the observed X-rays. A pair of jets, arranged perpendicular to the disk, are carrying part of the energy of the infalling material away into interstellar space.This system may belong to a stellar association called Cygnus OB3, which would mean that Cygnus X-1 is about five million years old and formed from a progenitor star that had more than 7001400000000000000♠40 solar masses. The majority of the star's mass was shed, most likely as a stellar wind. If this star had then exploded as a supernova, the resulting force would most likely have ejected the remnant from the system. Hence the star may have instead collapsed directly into a black hole.Cygnus X-1 was the subject of a friendly scientific wager between physicists Stephen Hawking and Kip Thorne in 1975, with Hawking betting that it was not a black hole. He conceded the bet in 1990 after observational data had strengthened the case that there was indeed a black hole in the system. This hypothesis has not been confirmed due to a lack of direct observation but has generally been accepted from indirect evidence.