Solutions
... Therefore, a B0 star has a lifetime of 1010 yr / 173 = 2 Million years b (2 points) What do you expect to be the end-state of this star? ...
... Therefore, a B0 star has a lifetime of 1010 yr / 173 = 2 Million years b (2 points) What do you expect to be the end-state of this star? ...
Goals of the day Clickers Order of Magnitude Astronomy
... • You are probably between 10 and 90 years old. Objects at distances between 10 and 90 light-years away from us are relatively close-by stars in the Milky Way. • The solar system is light-hours in size • The Local group is millions of light-years in size ...
... • You are probably between 10 and 90 years old. Objects at distances between 10 and 90 light-years away from us are relatively close-by stars in the Milky Way. • The solar system is light-hours in size • The Local group is millions of light-years in size ...
Supernovae - Michigan State University
... If a stellar core grows beyond its Chandrasekhar mass limit, it will collapse. Typically this will result in a Supernova explosion at least the outer part of a star is blown off into space ...
... If a stellar core grows beyond its Chandrasekhar mass limit, it will collapse. Typically this will result in a Supernova explosion at least the outer part of a star is blown off into space ...
Goals of the day Clickers Order of Magnitude Astronomy
... • You are probably between 10 and 90 years old. Objects at distances between 10 and 90 light-years away from us are relatively close-by stars in the Milky Way. • The solar system is light-hours in size • The Local group is millions of light-years in size ...
... • You are probably between 10 and 90 years old. Objects at distances between 10 and 90 light-years away from us are relatively close-by stars in the Milky Way. • The solar system is light-hours in size • The Local group is millions of light-years in size ...
Ch.11 Massive star death
... Neutron Stars & Supernova Remnants • Energy released by collapse of core drives outer layers into space • The Crab Nebula is the remnant of the supernova seen in A.D. 1054 ...
... Neutron Stars & Supernova Remnants • Energy released by collapse of core drives outer layers into space • The Crab Nebula is the remnant of the supernova seen in A.D. 1054 ...
Structure of the Universe
... We know how bright a star should be and then we compare to see how bright the star is ...
... We know how bright a star should be and then we compare to see how bright the star is ...
RFS_multiple_choice_Dec8_Key
... hence occulted by the moon at some time or the other. D. All of them lie in the Milky Way band of the sky (the galactic equator) 3. On July 4, 1054, Chinese astronomers (and possibly Native Americans) recorded a supernova explosion taking place in the constellation Taurusso bright that it was even v ...
... hence occulted by the moon at some time or the other. D. All of them lie in the Milky Way band of the sky (the galactic equator) 3. On July 4, 1054, Chinese astronomers (and possibly Native Americans) recorded a supernova explosion taking place in the constellation Taurusso bright that it was even v ...
Unit 1
... electrons merge into neutrons, taking energy away from the core • The core collapses, and the layers above fall rapidly toward the center, where they collide with the core material and “bounce” • The “bounced material collides with the remaining infalling gas, raising temperatures high enough to set ...
... electrons merge into neutrons, taking energy away from the core • The core collapses, and the layers above fall rapidly toward the center, where they collide with the core material and “bounce” • The “bounced material collides with the remaining infalling gas, raising temperatures high enough to set ...
Slayt 1
... The solar system formed out of a gas cloud that had been injected with heavy elements from many generations of supernova explosions. ...
... The solar system formed out of a gas cloud that had been injected with heavy elements from many generations of supernova explosions. ...
Topic 6 Introduction
... released as high energy (10 TeV) photons. Assuming the photons are released isotropically and that the supernovae takes place on the other side of the galaxy at 50 kpc from Earth estimate the flux of high energy photons incident on the Earth after the explosion. (1 TeV = 1012eV)" ...
... released as high energy (10 TeV) photons. Assuming the photons are released isotropically and that the supernovae takes place on the other side of the galaxy at 50 kpc from Earth estimate the flux of high energy photons incident on the Earth after the explosion. (1 TeV = 1012eV)" ...
Slide 1
... which occur for a single massive star and those which occur because of mass transfer onto a white dwarf in a binary system • Difference between the two types lies only in what gets the process started toward the explosion ...
... which occur for a single massive star and those which occur because of mass transfer onto a white dwarf in a binary system • Difference between the two types lies only in what gets the process started toward the explosion ...
P2_5 The Apparent Magnitude of α Orionis Supernova
... supergiant in the constellation Orion and is expected to become a type II supernova [1,5]. When this star becomes a supernova, it will radiate far more light and will become brighter in the night sky. This paper contains an investigation into the prospect of being able to see the supernova during th ...
... supergiant in the constellation Orion and is expected to become a type II supernova [1,5]. When this star becomes a supernova, it will radiate far more light and will become brighter in the night sky. This paper contains an investigation into the prospect of being able to see the supernova during th ...
HR Diagram of One Solar Mass Evolution
... Supernova Remnants • Expanding shell enriches interstellar medium with heavy elements • Debris from Crab=100tons, hits Earth in 100,000years ...
... Supernova Remnants • Expanding shell enriches interstellar medium with heavy elements • Debris from Crab=100tons, hits Earth in 100,000years ...
Round 1
... $1600 This tells you how much energy is released in the fusion of hydrogen to helium. (E = ∆mc2 where ∆m is the mass difference between the input H’s and output He’s.) $2000 Stars are in hydrostatic equilibrium, which means that this supports them against gravitational collapse. (thermal pressure du ...
... $1600 This tells you how much energy is released in the fusion of hydrogen to helium. (E = ∆mc2 where ∆m is the mass difference between the input H’s and output He’s.) $2000 Stars are in hydrostatic equilibrium, which means that this supports them against gravitational collapse. (thermal pressure du ...
Astronomy 242: Review Questions #1 Distributed: February 10
... 12. You observe a sample of Cepheid variable stars in a nearby galaxy. Plotting the average apparent K-band magnitude of each one against the period of pulsation yields Fig. 3. The straight line, a least-squares fit to the data, has the equation mK = 16.40 − 3.53 log(P/day). (a) Does it seem reasona ...
... 12. You observe a sample of Cepheid variable stars in a nearby galaxy. Plotting the average apparent K-band magnitude of each one against the period of pulsation yields Fig. 3. The straight line, a least-squares fit to the data, has the equation mK = 16.40 − 3.53 log(P/day). (a) Does it seem reasona ...
Lecture 19 Review
... M > 8MSun Further burning produces iron. The slow neutron process produces some heavy elements. There are no more fusion processes. Beyond this point it takes energy to make a heavier element. At this point gravitational collapse occurs followed by a catastrophic rebound. A fast neutron process pro ...
... M > 8MSun Further burning produces iron. The slow neutron process produces some heavy elements. There are no more fusion processes. Beyond this point it takes energy to make a heavier element. At this point gravitational collapse occurs followed by a catastrophic rebound. A fast neutron process pro ...
Death of High Mass Stars
... wave pushing all material outward in an immense explosion called a supernova. • Explosion can be as bright as an entire galaxy (billions of stars) for a few days • Some of the energy creates elements heavier than iron. These elements are distributed to the rest of the galaxy. ...
... wave pushing all material outward in an immense explosion called a supernova. • Explosion can be as bright as an entire galaxy (billions of stars) for a few days • Some of the energy creates elements heavier than iron. These elements are distributed to the rest of the galaxy. ...
Irregular Galaxies
... iron atoms into new elements. • Huge clouds of dust, gas, and the new elements explode into space. • This forms a new nebula. • Once a star supernovas, the core that remains of it will become either a neutron star or a black hole. ...
... iron atoms into new elements. • Huge clouds of dust, gas, and the new elements explode into space. • This forms a new nebula. • Once a star supernovas, the core that remains of it will become either a neutron star or a black hole. ...
Sample final
... the wavelength of maximum intensity of these stars? What part of the electromagnetic spectrum is that wavelength located in? 16. The Meade telescope in North Seattle CC’s dome has a primary mirror diameter of 0.25 m and a focal length of 2500 mm. Given that it is most sensitive to yellow light whose ...
... the wavelength of maximum intensity of these stars? What part of the electromagnetic spectrum is that wavelength located in? 16. The Meade telescope in North Seattle CC’s dome has a primary mirror diameter of 0.25 m and a focal length of 2500 mm. Given that it is most sensitive to yellow light whose ...
Universe CBA Review - cms16-17
... 3.) _____________ When a massive, high mass star dies, it can sometimes result in this type of violent, star explosion. 4.) _____________ Our sun is one of these on the H-R diagram…another name for an average, star. ...
... 3.) _____________ When a massive, high mass star dies, it can sometimes result in this type of violent, star explosion. 4.) _____________ Our sun is one of these on the H-R diagram…another name for an average, star. ...
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.