powerpoint version
... Sometimes see red shifted absorption lines due to material falling inwards to make a growing star. ...
... Sometimes see red shifted absorption lines due to material falling inwards to make a growing star. ...
Problems_blackbody_spectra_hr
... the properties of stars. Since the H-R Diagram plots temperatures and luminosities, you could almost think of it as a graph of Stefan-Boltzmann’s law (with stars of different radius). ...
... the properties of stars. Since the H-R Diagram plots temperatures and luminosities, you could almost think of it as a graph of Stefan-Boltzmann’s law (with stars of different radius). ...
Quantum Well Electron Gain Structures and Infrared
... • Figer et al. (2005) near-IR spectra of several highmass stars in cluster • Claim consistent with single age = 3-4 Myr & SGR progenitor > 50 M0 • No need for multi-epoch SF (?? – still » 25M0 ; plus, why did 50 M0 star blow up before 65 M0 star? …) ...
... • Figer et al. (2005) near-IR spectra of several highmass stars in cluster • Claim consistent with single age = 3-4 Myr & SGR progenitor > 50 M0 • No need for multi-epoch SF (?? – still » 25M0 ; plus, why did 50 M0 star blow up before 65 M0 star? …) ...
Stellar Evolution Hertzsprung-Russell Diagram Hertzsprung
... · black hole - an object so massive and dense that even light cannot escape its gravity ...
... · black hole - an object so massive and dense that even light cannot escape its gravity ...
Module G - U1_ L3 - Life Cycle of Stars
... • Astronomers refer to brightness as luminosity. Luminosity is a measure of the total amount of energy a star gives off each second. • When the surface temperatures of stars are plotted against their luminosity, a consistent pattern is revealed. • The graph that illustrates this pattern is called th ...
... • Astronomers refer to brightness as luminosity. Luminosity is a measure of the total amount of energy a star gives off each second. • When the surface temperatures of stars are plotted against their luminosity, a consistent pattern is revealed. • The graph that illustrates this pattern is called th ...
Review of the Principles of Stellar Parallax and Practice Problems
... Absolute Magnitude and Luminosity and Practice Problems Review Chapter 11.1.3 Magnitude System in AstronomyNotes for a more complete discussion of the details of this relationship. ...
... Absolute Magnitude and Luminosity and Practice Problems Review Chapter 11.1.3 Magnitude System in AstronomyNotes for a more complete discussion of the details of this relationship. ...
Science 8 Name: Unit 2 Astronomy Date: Period: LAB
... 1. Using the data in the table, plot the location of each star and label it with its name. 2. Complete the data table based on the location of the star on the HR Diagram. 3. Color the columns of the HR Diagram. 4. Answer the questions. Background: The Hertzsprung-Russell Diagram is actually an elabo ...
... 1. Using the data in the table, plot the location of each star and label it with its name. 2. Complete the data table based on the location of the star on the HR Diagram. 3. Color the columns of the HR Diagram. 4. Answer the questions. Background: The Hertzsprung-Russell Diagram is actually an elabo ...
Planet Found In Nearest Star System To Earth
... [2] HARPS measures the radial velocity of a star -- its speed towards or away from Earth -- with extraordinary precision. A planet in orbit around a star causes the star to regularly move towards and away from a distant observer on Earth. Due to the Doppler effect, this radial velocity change induce ...
... [2] HARPS measures the radial velocity of a star -- its speed towards or away from Earth -- with extraordinary precision. A planet in orbit around a star causes the star to regularly move towards and away from a distant observer on Earth. Due to the Doppler effect, this radial velocity change induce ...
doc - EU-HOU
... and the Commission cannot be held responsible for any use which may be made of the information contained therein. ...
... and the Commission cannot be held responsible for any use which may be made of the information contained therein. ...
Astronomy Test Review
... seen from Earth where as absolute magnitude is the brightness of a star from a standard distance. (10 parsecs) ...
... seen from Earth where as absolute magnitude is the brightness of a star from a standard distance. (10 parsecs) ...
PHY 116 From Newton to Einstein Model Answers to Exercise Sheet 5
... made mostly of neutrons and called a neutron star. The density of the neutron start is roughly 1014 times as great as that of ordinary solid matter. Suppose we represent the start as a uniform solid rigid sphere, both before and after collapse. The star’s initial radius was 7.0 x 105 km (comparable ...
... made mostly of neutrons and called a neutron star. The density of the neutron start is roughly 1014 times as great as that of ordinary solid matter. Suppose we represent the start as a uniform solid rigid sphere, both before and after collapse. The star’s initial radius was 7.0 x 105 km (comparable ...
The Properties of Stars
... Mid-mass stars spend their mainsequence lives fusing hydrogen into helium in their cores. (50 billion years) When the core runs out of hydrogen, the push outward due to fusion decreases and gravity contracts the star causing fusion to begin in a shell of hydrogen surrounding the core. Shell-hydrogen ...
... Mid-mass stars spend their mainsequence lives fusing hydrogen into helium in their cores. (50 billion years) When the core runs out of hydrogen, the push outward due to fusion decreases and gravity contracts the star causing fusion to begin in a shell of hydrogen surrounding the core. Shell-hydrogen ...
The Life Cycle of the Stars
... babies, children, teenagers, adults and even senior citizens. Like humans, stars pass through different stages in their lives. They are born, they mature and, eventually, they die. However, unlike humans, the typical star may last for millions or billions of years. While we cannot witness the comple ...
... babies, children, teenagers, adults and even senior citizens. Like humans, stars pass through different stages in their lives. They are born, they mature and, eventually, they die. However, unlike humans, the typical star may last for millions or billions of years. While we cannot witness the comple ...
Galaxies - C. Levesque
... that not even the neutrons stay apart and crash together forming a black hole • After that we are not sure as this creates a black hole • A black hole is an object so dense that not even light can ...
... that not even the neutrons stay apart and crash together forming a black hole • After that we are not sure as this creates a black hole • A black hole is an object so dense that not even light can ...
Physics@Brock - Brock University
... Contemplating the stars, their enormous distances from us, their enormous sizes (some are so large that they would swallow up the entire orbit of the Earth!), their complex workings, and their interesting life stories, never fails to elicit a cosmic feeling. The universe is vast, and we are but a sm ...
... Contemplating the stars, their enormous distances from us, their enormous sizes (some are so large that they would swallow up the entire orbit of the Earth!), their complex workings, and their interesting life stories, never fails to elicit a cosmic feeling. The universe is vast, and we are but a sm ...
red shift blue shift
... A black hole can result from the death of a supergiant star. The event horizon is the boundary that marks the “point of no return” for a black hole. Also thought of as the size of the black hole. There is a super-massive black hole at the center of the Milky Way. ...
... A black hole can result from the death of a supergiant star. The event horizon is the boundary that marks the “point of no return” for a black hole. Also thought of as the size of the black hole. There is a super-massive black hole at the center of the Milky Way. ...
Figure 10-6 The same star field shown in Figure
... stars, however. When the magnitude scale was extended and expressed by a mathematical formula, it developed that the brighter stars are brighter than those of the first magnitude; indeed they are even brighter than those of zero magnitude. The only way to express these hitherto unsuspected magnitude ...
... stars, however. When the magnitude scale was extended and expressed by a mathematical formula, it developed that the brighter stars are brighter than those of the first magnitude; indeed they are even brighter than those of zero magnitude. The only way to express these hitherto unsuspected magnitude ...
Shapes in the Sky
... will be done on the dome and in class before you visit. We will set the Sun and peer at the stars in the current night sky, first finding familiar shapes, like squares and triangles, and then locating some familiar constellations of the season. The Big Dipper and the North Star are common to each se ...
... will be done on the dome and in class before you visit. We will set the Sun and peer at the stars in the current night sky, first finding familiar shapes, like squares and triangles, and then locating some familiar constellations of the season. The Big Dipper and the North Star are common to each se ...
Stars Part 2 - westscidept
... QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this pict ure. ...
... QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this pict ure. ...
STARS
... • An enormous explosion when a large star dies. • When all the hydrogen is used up the core collapses • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
... • An enormous explosion when a large star dies. • When all the hydrogen is used up the core collapses • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
Astronomy Assignment #1
... Star D will appear brighter by a factor of 10,000 over star C. 13. How do the magnitudes of stars C and D in problem 4 compare? (Problem 4 synopsis: Stars C and D are the same distance from us, but star D is 10,000 times more luminous.) To answer this problem you need to use the rule regarding magni ...
... Star D will appear brighter by a factor of 10,000 over star C. 13. How do the magnitudes of stars C and D in problem 4 compare? (Problem 4 synopsis: Stars C and D are the same distance from us, but star D is 10,000 times more luminous.) To answer this problem you need to use the rule regarding magni ...
Learning Objectives Weeks 9-11 . 1. Know that star birth can begin
... 16. Explosive thermonuclear processes on white dwarfs and neutron stars produce novae and bursters. Novae and thermonuclear supernovae both occur in close binary systems with a white dwarf, but a while a nova can recur a supernova is a one-shot event. 17. Like a white dwarf, a neutron star has an u ...
... 16. Explosive thermonuclear processes on white dwarfs and neutron stars produce novae and bursters. Novae and thermonuclear supernovae both occur in close binary systems with a white dwarf, but a while a nova can recur a supernova is a one-shot event. 17. Like a white dwarf, a neutron star has an u ...
Astronomy
... The outer layers of the star grow bigger and slowly drift out into space. This material rejoins a nebula to be recycled into a new star The blue-white hot core is left and the “dead” star that is left behind is a white dwarf The glow coming from the core is left-over energy from the old star. The co ...
... The outer layers of the star grow bigger and slowly drift out into space. This material rejoins a nebula to be recycled into a new star The blue-white hot core is left and the “dead” star that is left behind is a white dwarf The glow coming from the core is left-over energy from the old star. The co ...
Star of Bethlehem
In Christian tradition, the Star of Bethlehem, also called the Christmas Star, revealed the birth of Jesus to the Biblical Magi, and later led them to Bethlehem. The star appears only in the nativity story of the Gospel of Matthew, where astrologers from the east are inspired by the star to travel to Jerusalem. There they meet King Herod of Judea, and ask where the king of the Jews had been born. Herod, following a verse from the Book of Micah interpreted as a prophecy, directs them to Bethlehem, to the south of Jerusalem. The star leads them to Jesus' home in the town, where they worship him and give him gifts. The wise men are then given a divine warning not to return to Herod so they return home by a different route.Many Christians see the star as a miraculous sign to mark the birth of the Christ (or messiah). Some theologians claimed that the star fulfilled a prophecy, known as the Star Prophecy. Astronomers have made several attempts to link the star to unusual astronomical events, such as a conjunction of Jupiter and Saturn, a comet or a supernova.Many modern scholars do not consider the story to be describing a historical event but a pious fiction created by the author of the Gospel of Matthew.The subject is a favorite at planetarium shows during the Christmas season, although the Biblical account describes Jesus with a broader Greek word, which can mean either ""infant"" or ""child"" (paidon), rather than the more specific word for infant (brephos), possibly implying that some time has passed since the birth. The visit is traditionally celebrated on Epiphany (January 6) in Western Christianity.