21structure1i
... There is no single method that can be used to find the distances to all objects We use many methods, each building on the other Called the cosmic distance ladder ...
... There is no single method that can be used to find the distances to all objects We use many methods, each building on the other Called the cosmic distance ladder ...
Lifecycle of the stars.
... A proto star is just like a baby star Small proto star-a brown dwarf that was too small to generate enough heat to start fusion. ...
... A proto star is just like a baby star Small proto star-a brown dwarf that was too small to generate enough heat to start fusion. ...
answers
... 6) The image above left shows a portion of the Hubble Deep Field image, which shows some of the most distant objects ever found. All of the objects are galaxies of stars except for E, which is a single nearby star. Which object is more luminous? A) E B) F C) they are about the same B) The two object ...
... 6) The image above left shows a portion of the Hubble Deep Field image, which shows some of the most distant objects ever found. All of the objects are galaxies of stars except for E, which is a single nearby star. Which object is more luminous? A) E B) F C) they are about the same B) The two object ...
Observational properties of stars
... concentrated into a point). The object was visible in the sky for 2 years. A supernova remnant is associated with this event, and currently it is thought to have been a Type Ia. SN1054 – (July 4) in Taurus, observed by Arabic, Chinese, Japanese astronomers, peak of V = -6, again brighter than Venus. ...
... concentrated into a point). The object was visible in the sky for 2 years. A supernova remnant is associated with this event, and currently it is thought to have been a Type Ia. SN1054 – (July 4) in Taurus, observed by Arabic, Chinese, Japanese astronomers, peak of V = -6, again brighter than Venus. ...
Einstein
... – since they all attain the same peak luminosity white dwarf supernovae make good distance indicators – they are more luminous than Cepheid variable stars so they can be used to measure out to greater distances than Cepheid variables ...
... – since they all attain the same peak luminosity white dwarf supernovae make good distance indicators – they are more luminous than Cepheid variable stars so they can be used to measure out to greater distances than Cepheid variables ...
The night sky in October and November
... It alternately fades and shines brightly. In 1572 an astronomer named Tycho Brahe saw a new bright star near Cassiopeia, and called it a “nova” or new. It only lasted a few days. He thought he had witnessed the first instance of this phenomenon. He was wrong as several other civilizations saw the sa ...
... It alternately fades and shines brightly. In 1572 an astronomer named Tycho Brahe saw a new bright star near Cassiopeia, and called it a “nova” or new. It only lasted a few days. He thought he had witnessed the first instance of this phenomenon. He was wrong as several other civilizations saw the sa ...
25 Study Guide
... • Binary stars can be used to determine stellar mass. • The nearest stars have the largest parallax angles, while those of distant stars are too small to measure. • Three factors control the apparent brightness of a star as seen from Earth: how big it is, how hot it is, and how far away it is. • A H ...
... • Binary stars can be used to determine stellar mass. • The nearest stars have the largest parallax angles, while those of distant stars are too small to measure. • Three factors control the apparent brightness of a star as seen from Earth: how big it is, how hot it is, and how far away it is. • A H ...
Learning Objectives Weeks 9-11 . 1. Know that star birth can begin
... supergiant 100 times (or more) larger than the Sun. 12. High-mass stars violently blow apart in supernova explosions. By forming a dense core of iron, a massive star sows the seeds of its own destruction.White dwarfs in close binary systems can also become supernovae. In just a few seconds, a thermo ...
... supergiant 100 times (or more) larger than the Sun. 12. High-mass stars violently blow apart in supernova explosions. By forming a dense core of iron, a massive star sows the seeds of its own destruction.White dwarfs in close binary systems can also become supernovae. In just a few seconds, a thermo ...
Skywatch Astro Ed Dec13
... reality the brighter of the two stars. Sirius appears brighter because it is so much closer. Viewed through binoculars in a dark sky, Sirius is a breathtaking sight, sparkling with the fire of a brilliant diamond. Of course, I wouldn’t be forgiven if I didn’t mention brilliant Venus in the western s ...
... reality the brighter of the two stars. Sirius appears brighter because it is so much closer. Viewed through binoculars in a dark sky, Sirius is a breathtaking sight, sparkling with the fire of a brilliant diamond. Of course, I wouldn’t be forgiven if I didn’t mention brilliant Venus in the western s ...
microwaves - TeacherWeb
... • Microwaves are good for transmitting information because they can penetrate haze, light rain and snow, clouds, and smoke. • Shorter microwaves are used for Doppler radar used in weather forecasts. • One microwave can carry 1000 telephone calls. ...
... • Microwaves are good for transmitting information because they can penetrate haze, light rain and snow, clouds, and smoke. • Shorter microwaves are used for Doppler radar used in weather forecasts. • One microwave can carry 1000 telephone calls. ...
NEUTRON STAR?
... A Neutron Star has an average density of about 1014 g/cm3. A teaspoon has a volume of about 5 cm3. Assuming an average person weighs 50kg, which of the following has the most total mass? ...
... A Neutron Star has an average density of about 1014 g/cm3. A teaspoon has a volume of about 5 cm3. Assuming an average person weighs 50kg, which of the following has the most total mass? ...
Chapter 13
... 18. Which of the following statements accurately describe some observed properties of type Ia and type II supernovae? a. Type Ia supernovae have hydrogen lines in their spectra. b. Type II supernovae have hydrogen lines in their spectra. c. Type Ia supernovae are more luminous. d. Both a and c above ...
... 18. Which of the following statements accurately describe some observed properties of type Ia and type II supernovae? a. Type Ia supernovae have hydrogen lines in their spectra. b. Type II supernovae have hydrogen lines in their spectra. c. Type Ia supernovae are more luminous. d. Both a and c above ...
galaxy
... The most distant galaxies ever photographed are as far as 10 billion to 13 billion light-years away. Large galaxies have more than a trillion stars. Only three galaxies outside the Milky Way are visible with the unaided eye. People in the Northern Hemisphere can see the Andromeda Galaxy, which is ab ...
... The most distant galaxies ever photographed are as far as 10 billion to 13 billion light-years away. Large galaxies have more than a trillion stars. Only three galaxies outside the Milky Way are visible with the unaided eye. People in the Northern Hemisphere can see the Andromeda Galaxy, which is ab ...
PHYSICS 113 Assignment #9 SOLUTIONS Chapter 17 13. Starting
... particles in the gas causes the gas to radiate energy at all wavelengths in the EM spectrum. It is this radiation from the hot gas that we see as the tremendous outpouring of energy from quasars. ...
... particles in the gas causes the gas to radiate energy at all wavelengths in the EM spectrum. It is this radiation from the hot gas that we see as the tremendous outpouring of energy from quasars. ...
FOE 2017 Poster Contributions - College of Science | Oregon State
... Title: The Swope Supernova Survey Abstract: The discovery rate of supernovae (SNe) in the local Universe (z < 0.1) has increased exponentially over the last two decades with ~1000 such SNe discovered in 2016 alone. To take advantage of this trove and address a variety of physical questions ranging f ...
... Title: The Swope Supernova Survey Abstract: The discovery rate of supernovae (SNe) in the local Universe (z < 0.1) has increased exponentially over the last two decades with ~1000 such SNe discovered in 2016 alone. To take advantage of this trove and address a variety of physical questions ranging f ...
Document
... Indicated the best answer to the following questions on the answer sheet provided. All questions are worth two points unless stated otherwise. 1. Magnetic fields inside sunspots are __________ those in surrounding regions. a) much stronger than, b) slightly stronger than, c) the same as, d) much wea ...
... Indicated the best answer to the following questions on the answer sheet provided. All questions are worth two points unless stated otherwise. 1. Magnetic fields inside sunspots are __________ those in surrounding regions. a) much stronger than, b) slightly stronger than, c) the same as, d) much wea ...
The Life of a Star
... between planets and stars. 13.3: Rotation vs. Revolution, How does this relate to the Earth’s days, years, seasons. 13.4: Constellations – know how to locate on a star map. 14.7: Composition of the Sun, Parts of the Sun, How the Sun’s energy is made. *14.10: 5 key characteristics of the Sun: Colour, ...
... between planets and stars. 13.3: Rotation vs. Revolution, How does this relate to the Earth’s days, years, seasons. 13.4: Constellations – know how to locate on a star map. 14.7: Composition of the Sun, Parts of the Sun, How the Sun’s energy is made. *14.10: 5 key characteristics of the Sun: Colour, ...
A1993KK54100001
... into low density space. But such objects would be expected to show rapid time variations, not present for the radio sources then known. I therefore ...
... into low density space. But such objects would be expected to show rapid time variations, not present for the radio sources then known. I therefore ...
November 2013 - Pomona Valley Amateur Astronomers
... Board member for next May's RTMC. Lee Collins followed with his “What's Up” segment on Novas and Supernovas. Tycho Brahe saw a supernova that was brighter than Venus in 1572. Thirty-two years later Johannes Kepler observed another supernova. While actually observing a nova or supernova occurring in ...
... Board member for next May's RTMC. Lee Collins followed with his “What's Up” segment on Novas and Supernovas. Tycho Brahe saw a supernova that was brighter than Venus in 1572. Thirty-two years later Johannes Kepler observed another supernova. While actually observing a nova or supernova occurring in ...
Death of Stars notes
... formation of other stars—and planets. • This result supports the notion that most of the dust observed in distant young galaxies may have been made by supernova explosions of early massive stars, since no other known mechanism could have produced nearly as much dust. • This result may provide the “m ...
... formation of other stars—and planets. • This result supports the notion that most of the dust observed in distant young galaxies may have been made by supernova explosions of early massive stars, since no other known mechanism could have produced nearly as much dust. • This result may provide the “m ...
14-1 Reading Questions: Neutron Stars
... 1. A neutron star, containing a little more than _________ solar mass, compressed to a radius of about __________, can be left as a remnant after a type ______ supernova explosion. A neutron star’s density is so high that physicists calculate that this material is stable only as a __________________ ...
... 1. A neutron star, containing a little more than _________ solar mass, compressed to a radius of about __________, can be left as a remnant after a type ______ supernova explosion. A neutron star’s density is so high that physicists calculate that this material is stable only as a __________________ ...
Evolution of High
... is not too heavy. • The core becomes a neutron star with a mass of about 1 Msun, with a size of just a few kilometer! (Chapter 13) • If the mass of the star is high enough to overcome the neutron degenerate pressure, then the core collapse into a black hole! (Chapter 13) • In either cases, the energ ...
... is not too heavy. • The core becomes a neutron star with a mass of about 1 Msun, with a size of just a few kilometer! (Chapter 13) • If the mass of the star is high enough to overcome the neutron degenerate pressure, then the core collapse into a black hole! (Chapter 13) • In either cases, the energ ...
answers - Salem State University
... 2. The giants are above the radii of the main sequence stars. 3. The higher temperature produces great luminosity as seen in the H-R Diagram. 4. The spectra (spectral absorption lines) is more narrow because the pressure in the giants is less than in the main sequence stars. 5. According the Cosmic ...
... 2. The giants are above the radii of the main sequence stars. 3. The higher temperature produces great luminosity as seen in the H-R Diagram. 4. The spectra (spectral absorption lines) is more narrow because the pressure in the giants is less than in the main sequence stars. 5. According the Cosmic ...
History of supernova observation
The known history of supernova observation goes back to 185 CE, when, supernova SN 185 appeared, the oldest appearance of a supernova recorded by humankind. Several additional supernovae within the Milky Way galaxy have been recorded since that time, with SN 1604 being the most recent supernova to be observed in this galaxy.Since the development of the telescope, the field of supernova discovery has expanded to other galaxies. These occurrences provide important information on the distances of galaxies. Successful models of supernova behavior have also been developed, and the role of supernovae in the star formation process is now increasingly understood.