Stellar life after the Main Sequence (cont.)
... the surface is not a good indicator of its deep interior ...
... the surface is not a good indicator of its deep interior ...
30 August: Lines on the Sky
... Using these ideas, let’s consider a coordinate system which is fixed with respect to the stars (as opposed to our position) Analogy: I am riding my bike on a dirt road near Lone Tree, and want to describe to someone in London the location of a radio tower I see in the ...
... Using these ideas, let’s consider a coordinate system which is fixed with respect to the stars (as opposed to our position) Analogy: I am riding my bike on a dirt road near Lone Tree, and want to describe to someone in London the location of a radio tower I see in the ...
Other Facets of Giant Branch Evolution • As the envelope cools due
... that in higher mass stars, the core decreased in size during mainsequence evolution, leaving behind processed CNO. As a result, the surface abundance of 14 N grows at the expense of 12 C, as the processed material gets mixed onto the surface. This is called the first dredge-up. Typically, this dredg ...
... that in higher mass stars, the core decreased in size during mainsequence evolution, leaving behind processed CNO. As a result, the surface abundance of 14 N grows at the expense of 12 C, as the processed material gets mixed onto the surface. This is called the first dredge-up. Typically, this dredg ...
File
... Formation of the Solar System Formed 5 billion years ago Formed from a dust cloud of H+ and He ions. Gravitational attraction brought these particles close together Cloud rotated and formed shape of a rotating disk known as solar nebula ...
... Formation of the Solar System Formed 5 billion years ago Formed from a dust cloud of H+ and He ions. Gravitational attraction brought these particles close together Cloud rotated and formed shape of a rotating disk known as solar nebula ...
SCE 18 – Part 10
... • If we run this “backwards” we see that at earlier times, galaxies must have been closer together. • Eventually the distance would approach zero. • Would occur about 13-14 thousand million years ago. • Colloquially, this event is known as the “Big Bang” after Fred Hoyle. Georges Lemaître called it ...
... • If we run this “backwards” we see that at earlier times, galaxies must have been closer together. • Eventually the distance would approach zero. • Would occur about 13-14 thousand million years ago. • Colloquially, this event is known as the “Big Bang” after Fred Hoyle. Georges Lemaître called it ...
Astronomy 110: Survey of Astronomy Homework #2
... a. Mars orbits the Sun at an average distance of 1.5 AU. Use Kepler’s third law to determine how many years it takes Mars to complete one orbit around the Sun. (Be sure to show all work.) b. Pluto orbits the sun every 250 years. Use Kepler’s third law to determine how far (on average) Pluto is from ...
... a. Mars orbits the Sun at an average distance of 1.5 AU. Use Kepler’s third law to determine how many years it takes Mars to complete one orbit around the Sun. (Be sure to show all work.) b. Pluto orbits the sun every 250 years. Use Kepler’s third law to determine how far (on average) Pluto is from ...
Reader`s Theater Our Closest Star
... strong enough to hold all of the parts of this system together. Is it any wonder the system is named after me? I am a star, your closest star. I may be millions of times closer to you than other stars, but I am still very far away. It would take a jet plane nineteen years to reach me. But, of course ...
... strong enough to hold all of the parts of this system together. Is it any wonder the system is named after me? I am a star, your closest star. I may be millions of times closer to you than other stars, but I am still very far away. It would take a jet plane nineteen years to reach me. But, of course ...
Nuclear and Particle Physics - Lecture 26 Nucleosynthesis 1
... Sun so they do not contribute to its luminous power output, so the observable power is actually around 26.2 MeV per helium nucleus formed. Comparing this to the measured power output of the Sun allows us to calculate the rate of this reaction and hence predict the number of solar neutrinos we would ...
... Sun so they do not contribute to its luminous power output, so the observable power is actually around 26.2 MeV per helium nucleus formed. Comparing this to the measured power output of the Sun allows us to calculate the rate of this reaction and hence predict the number of solar neutrinos we would ...
oct8
... We need a new form of matter called antimatter. Antimatter is made up of antiparticles which have the same mass as ordinary particles but opposite charge. Matter and antimatter will annihilate each other if they come in contact producing energy. ...
... We need a new form of matter called antimatter. Antimatter is made up of antiparticles which have the same mass as ordinary particles but opposite charge. Matter and antimatter will annihilate each other if they come in contact producing energy. ...
幻灯片1
... Read the passage in Activity 2 and choose the best title. Put the words and expressions in the box in order: small—large galaxy planet solar system star universe planet star solar system galaxy universe ...
... Read the passage in Activity 2 and choose the best title. Put the words and expressions in the box in order: small—large galaxy planet solar system star universe planet star solar system galaxy universe ...
When the Sun Dies—12 Oct Composition of the sun
... • Sun will use up the hydrogen in the center in 5Byr • Center of sun must shrink to get hotter to balance gravity ...
... • Sun will use up the hydrogen in the center in 5Byr • Center of sun must shrink to get hotter to balance gravity ...
post-class version, 374 KB - Department of Physics and Astronomy
... • These elements are the most abundant ones (except for helium, which will not condense into a solid or form any compounds) • Examples of compounds: water, carbon dioxide, methane, ammonia • Such compounds are called ices when solid ...
... • These elements are the most abundant ones (except for helium, which will not condense into a solid or form any compounds) • Examples of compounds: water, carbon dioxide, methane, ammonia • Such compounds are called ices when solid ...
solar_notes_Feb11
... Our Sun is one of about 100 billion in our galaxy (Milky Way); a normal “G2” star having average luminosity. Its average radius (696,000 km) is about 109 times that of Earth, and its mass is 1.989e+30 kg. ...
... Our Sun is one of about 100 billion in our galaxy (Milky Way); a normal “G2” star having average luminosity. Its average radius (696,000 km) is about 109 times that of Earth, and its mass is 1.989e+30 kg. ...
Lecture 18: Supernovae
... Nuclei photodisintegrate into He, p, & n Protons & electrons combine into neutrons and neutrinos, neutrinos escape and carry off energy Makes the core collapse faster, as the insufficient pressure is decreased further ...
... Nuclei photodisintegrate into He, p, & n Protons & electrons combine into neutrons and neutrinos, neutrinos escape and carry off energy Makes the core collapse faster, as the insufficient pressure is decreased further ...
March 2013 - Joliet Junior College
... overhead are Castor and Polux which mark the heads of the Gemini twins. To the left of Gemini is Cancer. The stars in Cancer are too dim to be seen in anything but very dark skies, but a binocular search through Cancer will find the Beehive star cluster. Next to Cancer is Leo the Lion. The red star, ...
... overhead are Castor and Polux which mark the heads of the Gemini twins. To the left of Gemini is Cancer. The stars in Cancer are too dim to be seen in anything but very dark skies, but a binocular search through Cancer will find the Beehive star cluster. Next to Cancer is Leo the Lion. The red star, ...
