Alpha Centauri A and B are Sun-like stars, and together they form the binary star Alpha...
Alpha Centauri A and B are Sun-like stars, and together they form the binary star Alpha Centauri AB. Alpha Centauri A has 1.1 times the mass of the Sun, while Alpha Centauri B has 0.907 times the Sun’s mass. (Sun’s mass is 1.989 × 1030 kg.) The pair orbit about a common centre with an orbital period of 79.91 years. Their elliptical orbit is eccentric, so that the distance between A and B varies, but if we assume it is circular we can calculate the average velocities. Find the average velocities of the two stars.
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Alpha Centauri A and B are Sun-like stars, and together they
form the binary star Alpha...
Next stop is our nearest star: Alpha Centauri. Your Journey will take a while using fusion...
Next stop is our nearest star: Alpha Centauri. Your Journey will take a while using fusion power, so you will probably sleep for a few months. When you finally wake up near Alpha Centauri, you realize that Alpha Centauri is actually a binary star system! The two stars, Alpha-Cen-A and AlphaCen-B, have different masses; Alpha-Cen-A is more massive than Alpha-Cen-B. (a) Draw a schematic diagram representing the orbits of the two stars, labeling the stars and indicating their orbital paths....
op Plaskett's binary system consists of two stars that revolve In a circular orbit about a center of mass midway betwee...
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Plaskett's binary system consists of two stars that revolve In a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below). Assume the orbital speed of each star is |v | = 240 km/s and the orbital period of each is 12.5 days. Find the mass M of each star. (For comparison, the mass of our Sun is 1.99 times 1030 kg Your answer...
For the following, quote your numerical answers to two significant figures: a) A binary system consists...
For the following, quote your numerical answers to two significant figures: a) A binary system consists of two stars orbiting a common center of mass. Star A is a white star of mass MA = 2.02Mo, where Mo = 1.989 x 1030 kg is the mass of the Sun. Its companion, Star B, is a white dwarf with mass Mg = 0.978M. The orbital period of the two objects is observed to be t = 50.09 years. What is the...
Plaskett's binary system consists of two stars that revolve in a circular orbit about a center...
Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below). Assume the orbital speed of each star is |v vector| = 170 km/s and the orbital period of each is 14.5 days. Find the mass M of each star. (For comparison, the mass of our Sun is 1.99 times 10^30 kg.) 1.02e-9 If you...
Need help with this problem. Thanks. Binary Stars Q1) A binary star system has a distance...
Need help with this problem. Thanks.
Binary Stars Q1) A binary star system has a distance from Earth of 42.2 light years. The distance between the stars is 1.08 x 101 m and the rotation period is 104 days. Assume equal masses of the stars, and circular orbits (centre of mass of the system is at rest relative to the Earth). a) Calculate the speed of the stars relative to the centre of mass of the system. Further assume the...
5- Consider a binary system composed of a star 1 and a star 2 that both...
5- Consider a binary system composed of a star 1 and a star 2 that both have very eccentric orbits (el = e2 = 0.500). They both take 3.00 months to complete an orbit but the semi-major axis of star 2 is three times larger than that of star 1. The two stars are very close to each other since the sum of their semi-major axes is 0.500 AU. They both lie 50.0 ly from us. a) Make a somewhat...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed of dead stars! To occupy your waking travel time by reading about this star system in the "Outer Space Tourbook": Stars spend most of their lifetimes undergoing nuclear fusion in their cores, which is why they give off so much light. However, when the material necessary...
A planet is discovered to orbit around a star in the galaxy Andromeda, with the same...
A planet is discovered to orbit around a star in the galaxy Andromeda, with the same orbital diameter as the Earth around our Sun. If that star has 4 times the mass of our Sun, what will the period of revolution of that new planet be, compared to the Earth's orb o One-fourth as much o One-half as much Twice as much A. Four times much The average distance from the Earth to the Sun is defined as one "astronomical...
2) Densities We discussed White Dwarfs and Neutron stars, very dense objects compared to stars like...
2) Densities We discussed White Dwarfs and Neutron stars, very dense objects compared to stars like our sun. On the other hand, we also discussed Red Giants which are much less dense than our sun. To realize just how dense, please compute the average densities (in kg/m) for a) the sun (Rsun=7 x 10 km, Msun= 2 x 1030 kg) b) when the sun becomes a red giant (R= 1AU, M=Msun). By what factor is a Red Giant less dense...
Satellite A has twice the mass of satellite B, and circles in the same orbit. Compare the two satellite's speeds. The s...
Satellite A has twice the mass of satellite B, and circles in the same orbit. Compare the two satellite's speeds. The speed of B is twice the speed of A. The speed of Bis half the speed of A. A. The speed of Bis one-fourth the speed of A. The speed of B is equal to the speed of A. The speed of Halley's Comet, while traveling in its elliptical orbit around the Sun, O is constant increases as it...
op
Plaskett's binary system consists of two stars that revolve In a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below). Assume the orbital speed of each star is |v | = 240 km/s and the orbital period of each is 12.5 days. Find the mass M of each star. (For comparison, the mass of our Sun is 1.99 times 1030 kg Your answer...
For the following, quote your numerical answers to two significant figures: a) A binary system consists of two stars orbiting a common center of mass. Star A is a white star of mass MA = 2.02Mo, where Mo = 1.989 x 1030 kg is the mass of the Sun. Its companion, Star B, is a white dwarf with mass Mg = 0.978M. The orbital period of the two objects is observed to be t = 50.09 years. What is the...
Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below). Assume the orbital speed of each star is |v vector| = 170 km/s and the orbital period of each is 14.5 days. Find the mass M of each star. (For comparison, the mass of our Sun is 1.99 times 10^30 kg.) 1.02e-9 If you...
Need help with this problem. Thanks.
Binary Stars Q1) A binary star system has a distance from Earth of 42.2 light years. The distance between the stars is 1.08 x 101 m and the rotation period is 104 days. Assume equal masses of the stars, and circular orbits (centre of mass of the system is at rest relative to the Earth). a) Calculate the speed of the stars relative to the centre of mass of the system. Further assume the...
5- Consider a binary system composed of a star 1 and a star 2 that both have very eccentric orbits (el = e2 = 0.500). They both take 3.00 months to complete an orbit but the semi-major axis of star 2 is three times larger than that of star 1. The two stars are very close to each other since the sum of their semi-major axes is 0.500 AU. They both lie 50.0 ly from us. a) Make a somewhat...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed of dead stars! To occupy your waking travel time by reading about this star system in the "Outer Space Tourbook": Stars spend most of their lifetimes undergoing nuclear fusion in their cores, which is why they give off so much light. However, when the material necessary...
A planet is discovered to orbit around a star in the galaxy Andromeda, with the same orbital diameter as the Earth around our Sun. If that star has 4 times the mass of our Sun, what will the period of revolution of that new planet be, compared to the Earth's orb o One-fourth as much o One-half as much Twice as much A. Four times much The average distance from the Earth to the Sun is defined as one "astronomical...
2) Densities We discussed White Dwarfs and Neutron stars, very dense objects compared to stars like our sun. On the other hand, we also discussed Red Giants which are much less dense than our sun. To realize just how dense, please compute the average densities (in kg/m) for a) the sun (Rsun=7 x 10 km, Msun= 2 x 1030 kg) b) when the sun becomes a red giant (R= 1AU, M=Msun). By what factor is a Red Giant less dense...
Satellite A has twice the mass of satellite B, and circles in the same orbit. Compare the two satellite's speeds. The speed of B is twice the speed of A. The speed of Bis half the speed of A. A. The speed of Bis one-fourth the speed of A. The speed of B is equal to the speed of A. The speed of Halley's Comet, while traveling in its elliptical orbit around the Sun, O is constant increases as it...
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