If you find a galaxy that is the same size and mass as our Milky Way Galaxy, what orbital velocity would a small satellite galaxy have if it orbits 51 kpc from the center of the larger galaxy? (Assume the total mass of our galaxy is about 4.0 1011 solar masses, M.)
Q: Pretend that galaxies are spaced evenly, 4.0 Mpc apart, and the average mass of a galaxy is 1.0 x…
A:
Q: How would I calculate the age of the universe in billions of years from the Hubble constant (73.48…
A: Everything that exists resides in the universe, including the Earth, planets, stars, space, and…
Q: Suppose that the outer stars of a galaxy have an orbital velocity of 150 km/s. If the radius of the…
A: Given data: rgalaxy=4 kpcv=150 km/s Need to determine the orbital period of the outer stars.
Q: Pretend that galaxies are spaced evenly, 8.0 Mpc apart, and the average mass of a galaxy is 1.0 ✕…
A: Average density of the matter in the universe ρavg=M43πd23=6Mπd2
Q: Suppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri…
A:
Q: If a standard passenger aircraft can fly at 0.37 km/s (828 mph), how long (in yr) would it take to…
A:
Q: Consider a universe in which the Hubble constant has been measured to have the value H0 = 50…
A: Hubble's law gives the idea that the universe is continuously expanding, and that galaxies are…
Q: If a standard passenger aircraft can fly at 0.27 km/s (604 mph), how long (in yr) would it take to…
A: The problem is based upon distance time relation. We know that distance is the length. For very…
Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…
A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…
Q: A galaxy cluster has a recessional velocity of 19,000 km/s. Using the best estimate for Hubble's…
A: To calculate the distance of the distant galaxies in megaparsecs (Mpc) Hubble’s law is used. If the…
Q: solar masses. (Hint: Use the formula for circular velocity, V. = VS"; make sure you convert relevant…
A: Given Data: The orbital velocity of a globular cluster is, ve=417 km/s The distance from the centre…
Q: If a galaxy is 9.2 Mpc away from Earth and recedes at 475 km/s, what is H0 (in km/s/Mpc)?
A:
Q: Pretend that galaxies are spaced evenly, 2.0 Mpc apart, and the average mass of a galaxy is 1.0 x…
A: We know that:-Spherical galaxy average density,ρ=M43πr23 Equation 1r=2.0 Mpcconvert Mpc to…
Q: If a galaxy contains a supernova that at its brightest has an apparent magnitude of +15, how far…
A: The magnitude-distance formula be defined as, d=10mV-MV+55 Where, MV be defined as the absolute…
Q: If the Sun is 4.6 billion years old, how many times has it orbited the Milky Way galaxy? (The Sun is…
A:
Q: Let's say that the number density of galaxies in the universe is, on average, 3 × 10–68 galaxies/m3.…
A: Given :number density of galaxies, n = 3 × 10–68 galaxies/m3 Observable distance by…
Q: If the active core of a galaxy contains a black hole of 10°M, (1 million solar masses), what will…
A: mass of black hole, M=106 MΘ=106*2*1030=2*1036 Kg radius of orbit,r=0.33 Au=0.33*1.5*1011=0.495*1011…
Q: If the active core of a galaxy contains a black hole of 106 M, what will the orbital period be for…
A: The expression for the orbital period, T=2πrv =2πrGMr =2πr32GM
Q: Among the globular clusters orbiting a distant galaxy, one is moving at 534 km/s and is located 14…
A: Given data: Speed of the globular clusters around the galaxy is, v= 534 km/s= 534000 m/s Distance of…
Q: If the active core of a galaxy contains a black hole of 106 Me, what will the orbital period be for…
A:
Q: If we knew that a distant galaxy were 8.56 x 1021 meters away from earth, what velocity could we…
A: The velocity of a distant galaxy can be calculated using Hubble's Law. Hubble's Law states that the…
Q: Explain how the Hubble constant, H0, can be used to make an estimate for the age of the Universe.…
A: Hubble's Law gives us the conclusion that the universe is always expanding. It takes very short…
Q: Suppose that stars were born at random times over the last 1010 years. The rate of star formation is…
A: Given that, The total number of stars in the Milky way is N=8×1011 And the stars were born at random…
Q: If the active core of a galaxy contains a black hole of 10° Mo, what will the orbital period be for…
A: This problem can be solved using the formula for circular velocity and then dividing the distance by…
Q: A galaxy's distance from us is measured to be 49 Mpc. Using the same value of the Hubble constant,…
A: Given:distance of the galaxy, d = 49 Mpcstandard value for hubble's constant is, H = 70…
Q: What is the estimated age of the Universe (in years) if the Hubble constant is 70 km/s/Mpc?
A:
Q: A force F of magnitude 920 lb is applied to point C of the bar AB as shown. Determine both the x-y…
A: A force F of magnitude 920 lb is applied to point C of the bar AB as shown in the figure. We need to…
Q: If the Hubble's constant was 100 km/s/Mpc instead of 70 km/s/Mpc what would be the estimated age of…
A: It was observed that the galaxies were moving away from us. Edwin Hubble calculated their recession…
Q: If a galaxy is 8.9 Mpc away from Earth and recedes at 510 km/s, what is H0 (in km/s/Mpc)?
A: The Hubble constant can be calculated by v=H0d Where v is velocity in km/s Ho is Hubble constant in…
Q: There exists an element visible in the spectrum of galaxies that shows the following spectra when…
A: Introduction: The Doppler effect refers to the apparent shift in the wavelength of a wave when there…
Q: If active core of a galaxy contains a black hole of 10^6 M, what will the orbital period be for…
A:
Q: Let's say that the number density of galaxies in the universe is, on average, 3 × 10–68 galaxies/m3.…
A:
Q: Based on comparison with the Moon, it can be calculated that Andromeda would have to have a diameter…
A:
Q: A star in the Milky Way that is about 60 percent of the way out from the center of the galaxy has an…
A: Answer: Detail solution in below.
Q: If astronomers were to find they have made a mistake and our solar system is actually 7.8 (rather…
A: Let m be defined as the mass of the sun, and M be defined as the mass of the galaxy. Since the sun…
Q: how far away is the galaxy
A:
Q: You find a small satellite galaxy orbiting 66 kpc from the center of a larger galaxy at a speed of…
A: Given data: Radius of the galaxy r=66 kpc. Velocity of satellite v=210 km/s. According to Kepler's…
Q: In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble…
A: Given: one image of hubble ultra deep field is roughly 10 square arcminutes. Number of galaxies in…
If you find a galaxy that is the same size and mass as our Milky Way Galaxy, what orbital velocity would a small satellite galaxy have if it orbits 51 kpc from the center of the larger galaxy? (Assume the total mass of our galaxy is about 4.0 1011 solar masses, M.)
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 5 images
- Assume that a typical galaxy contains about 200 billion stars and that there are more than 150 billion galaxies in the known universe. Estimate the total number of stars in the universe.Given an image of a disk galaxy, you have measured that the average surface brightness at two radii (R = R1 and R = R2) are I1 and I2 respectively. The disk surface brightness profile has the exponential form of I(R) = I0 e(-R/Rd). What are the values of I0 and Rd for this disk?If a standard passenger aircraft can fly at 0.37 km/s (828 mph), how long (in yr) would it take to reach the Sun? How long (in yr) would it take to reach the galactic center? (Note: 1 pc = 3.1 ✕ 1013 km. The radius of the Sun's orbit around the galactic center is approximately 8,300 pc.)
- If a standard passenger aircraft can fly at 0.26 km/s (582 mph), how long (in yr) would it take to reach the Sun? yr How long (in yr) would it take to reach the galactic center? (Note: 1 pc = 3.1 ✕ 1013 km. The radius of the Sun's orbit around the galactic center is approximately 8,300 pc.) yrAn astronomer in an imaginary Universe observes a small patch of the sky (0.005% of the total) with very deep observations and finds one million galaxies. How many galaxies can they estimate to be present in the whole Universe? 10 billion 20 billion 50 billion O 70 billionFigure 2 shows the "rotation curve" of NGC 2742. It plots the “radial velocity (V)" (how fast material is moving either toward or away from us) that is measured for objects at different distances (R = radius") from the center of the galaxy. The center of the galaxy is at 0 kpc (kiloparsecs) with a speed of 9 km/sec away from us. (These velocities have been corrected for the observed tilt of the galaxy and represent true orbital velocities of the stars and gas.) 200 100 U4779 -100 As you can see, one side of the galaxy is moving with a negative velocity (spinning toward us), while the other side has a positive velocity (spinning away from us). Using Newton's gravity equation, we will be able to determine the gravitational mass of the entire galaxy and how the mass varies versus distance from the galaxy's center. -200 -8 8 -4 Radius (kpc) Read the following text carefully and follow the instructions: Select five radii spaced evenly from 0-10 kpc across the galaxy. Your selections should…
- If Hubble’s constant is taken to be 70 ??? ???, and a quasar is found to have a radial velocity equal to 95% of the speed of light, how far is the quasar in Mpc? (Hint: Use Hubble’s Law and solve for the distance; and the speed of light in vacuum is: ?=3.0×105 ??/?).The Sun is at a distance of about 8 kpc from the galactic center and moves around the galactic center in a circular path with a velocity of about 220 km s. Make a rough estimate of the mass of the Galaxy.Astronomers estimate the mass of the stars in a certain galaxy to be about 3.0e40 kg, and the total mass of this galaxy to be about 1.2e41 kg. The amount of the galaxy’s mass is made up of dark matter is_____ percent.