Do the the stars within a galaxy move away from each other due to the Universe’s...
Do the the stars within a galaxy move away from each other due to the Universe’s expansion? Explain your reasoning
Homework Answers
No they don't, as the universe expands those objects that are gravitationally bound to each other would remain around each other like moon to earth even space between them expands they get closer to each other and remain in stable orbit. That's also true for stars in any galaxy that orbit the central black hole.
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Do the the stars within a galaxy move away from each other due
to the Universe’s...
1. How do the stars in the disk of the galaxy differ from the ones in...
1. How do the stars in the disk of the galaxy differ from the ones in the bulge and halo? 2. What triggers formation of stars in the spiral arms of our galaxy?
A distant galaxy, far, far away, contains approximately 4.58x1011 stars with an average mass of 2.25x1030...
A distant galaxy, far, far away, contains approximately 4.58x1011 stars with an average mass of 2.25x1030 kg each. If its nearest galactic neighbor, contains roughly the same number and type of stars and is 1.77x1043 meters away, what is the gravitational force of attraction between the two galaxies?
Two jets of material from the center of a radio galaxy fly away in opposite directions....
Two jets of material from the center of a radio galaxy fly away in opposite directions. Both jets move at 0.328 c relative to the galaxy. Determine the magnitude of the velocity of one jet relative to the other. Correct answer: 0.59228 c.
Galaxy A moves away from galaxy B at 0.700 c0 relative to B. A spaceship leaves...
Galaxy A moves away from galaxy B at 0.700 c0 relative to B. A spaceship leaves a planet in galaxy A traveling at 0.550 c0 relative to galaxy A. If the direction in which the ship travels is the same as the direction in which A is moving away from B, what do observers in B measure for the ship's speed?
Stars in elliptical galaxies move like the bulge or halo stars in spiral galaxies. a. Why...
Stars in elliptical galaxies move like the bulge or halo stars in spiral galaxies. a. Why can’t the rotation curve method to determine mass be used for elliptical galaxies? b. Masses of elliptical galaxies are often derived from their velocity dispersions. This part illustrates how a velocity dispersion can be determined: The intrinsic line-width of a K giant star might be 0.5 Å at a central wavelength λ0 = 5000 Å. Suppose an elliptical galaxy is observed which has a...
If a galaxy is 570 Mly away from us, how fast do we expect it to...
If a galaxy is 570 Mly away from us, how fast do we expect it to be moving and in what direction?
If a galaxy is 165 Mly away from us, how fast do we expect it to...
If a galaxy is 165 Mly away from us, how fast do we expect it to be moving and in what direction? Answer in km/s
The rate at which two galaxies are moving away from each other can be determined from...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km'sMlly. The formula is v = Hod where H0 is the Hubble constant and d is the distance between the galaxies. A galaxy is 10 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers...
The rate at which two galaxies are moving away from each other can be determined from...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula isv Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per second?...
The rate at which two galaxies are moving away from each other can be determined from...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula is v Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per...
A distant galaxy, far, far away, contains approximately 4.58x1011 stars with an average mass of 2.25x1030 kg each. If its nearest galactic neighbor, contains roughly the same number and type of stars and is 1.77x1043 meters away, what is the gravitational force of attraction between the two galaxies?
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km'sMlly. The formula is v = Hod where H0 is the Hubble constant and d is the distance between the galaxies. A galaxy is 10 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula isv Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per second?...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula is v Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per...
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