Andromeda Galaxy, M31, is considered a sister galaxy to Milky Way galaxy. One similarirty is their...
Andromeda Galaxy, M31, is considered a sister galaxy to Milky Way galaxy. One similarirty is their masses
(a) Astronomers have used orbiting satellite galaxies to calculate the mass. At a distance of 190 kpc from the center of M31, the circular velocity of these objects is 150 km/s. Using the measurements and tools that astronomers use, calculate the total mass of M31 in units of the mass of the Sun, M. Watch your units in your calculations! Here are few pieces of additional information that you will find helpful: the gravitational constant, G= 6.67×10E−11m^3/kg/s^2, 1 pc = 3.086×10^16m, 1 M= 1.99×10^30kg.
(b) The amount of mass seen in stars is 1.0 x 10 ^11 M solar masses. how does this compare to the total amount of mass you calculated in the first part? (take a ratio)
Homework Answers
a)
Orbital distance of satellite is 
Orbital velocity of satellites is 
b)
Amount of mass seen in stars is 
Add Answer to:
Andromeda Galaxy, M31, is considered a sister galaxy to Milky
Way galaxy. One similarirty is their...
Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A...
Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A ring of material orbits this massive object; the ring has a diameter of about 10 light years and an orbital speed of about 210 km/s . A) Determine the mass of the massive object at the center of the Milky Way galaxy. Give your answer in kilograms. B) Give your answer in solar masses (one solar mass is the mass of the sun). C)...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 ✕ 1011 solar masses. A star orbiting near the galaxy's periphery is 5.6 ✕ 104 lightyears from its center. What should the orbital period (in y) of that star be? If its period is 5.9 ✕ 107 y instead, what is the mass (in solar masses) of the galaxy? Such calculations are used to imply the existence of "dark matter" in the universe and...
Astronomical observations of our Milky Way galaxy indicate that it center. (For your calculations, assume that...
Astronomical observations of our Milky Way galaxy indicate that it center. (For your calculations, assume that the galaxy's mass is concentrated near its center.) has a mass of about 8 × Ό11 solar masses. A star orbiting near the galaxy S periphery. S ,, e İ-lit ears or ts (a) What should the orbital period of that star be? yr If its period is 6.7 x ǐ07 years instead, what is the mass of the galaxy? Such calculations are used...
Astronomers have observed a small, massive object at the center of our Milky Way Galaxy. A...
Astronomers have observed a small, massive object at the center of our Milky Way Galaxy. A ring of material orbits this massive object; the ring has a diameter of about 14 light-years and an orbital speed of about 100 km/s. A. Determine the mass M of the massive object at the center of the Milky Way Galaxy. Give your answer in kilograms. B. Give your answer in solar masses (one solar mass is the mass of the sun) C. Many...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0x10^11...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0x10^11 solar masses. A star orbiting near the galaxy's periphery is 6.0X10^4 light years from its center. (For your calculations, assume that the galaxy's mass is concentrated near its center.) (a) What should the orbital period of that star be in yr ? (b) If its period is 6.0 x 10^7 years instead, what is the mass of the galaxy? Such calculations are used to...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0×1011...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0×1011 solar masses. A star orbiting on the galaxy’s periphery is about 6.0×104 light years from its center. What should the orbital period in years of that star be? (You do not need to enter any units.) 2.61×108 yr ¡Correcto! Su recibo es 160-1991 Intentos Anteriores If its period is 5.0×107 light years instead, what is the mass of the galaxy in solar mass? Such...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 1011 solar masses. A star orbiting near the galaxy's periphery is 5.7 x 104 light-years from its center. (a) What should the orbital period (in y) of that star be? 24.2e6 ху (b) If its period is 5.1 x 107 years instead, what is the mass (in solar masses) of the galaxy? Such calculations are used to imply the existence of other matter,...
The sun orbits the center of the Milky Way galaxy (see figure) in a period of...
The sun orbits the center of the Milky Way galaxy (see figure)
in a period of 2.5 108 years.
(a) Assuming a circular orbit of radius 2.12 1020 m, compute the
mass of the Milky Way.
(b) Estimate the number of stars in the Milky Way, assuming the
average star mass equals the mass of the sun—2.0 1030 kg. units
3. In this problem, we are going to examine the supermassive black hole in the center...
3. In this problem, we are going to examine the supermassive black hole in the center of our galaxy, Sagittarius A.. (a) (15 points) We can calculate its mass using the orbits of stars gravitationally bound to it in the same way that you can use the Earth's orbit to calculate the mass of the Sun). The orbit of a star, S2, has been fully mapped out. Its period is 15.24 yr and semi-major axis length is 980 AU. Using...
Assuming that H0 = 70 km/s/Mpc, calculate the mass of the parent galaxy. (M = ?...
Assuming that H0 = 70 km/s/Mpc, calculate the
mass of the parent galaxy. (M = ? solar masses)
Note: The answer is NOT 9.05*10^17, 9.75*10^17, 1.87*10^33,
4.73*10^12, 4.19*10^11. These are the incorrect answers which I
have enetered in the online assignment
Constants | Periodic Table A small satellite galaxy is moving in a circular orbit around a much more massive parent and just happens to be moving exactly parallel to the line of sight as seen from Earth. The recession...
Astronomical observations of our Milky Way galaxy indicate that it center. (For your calculations, assume that the galaxy's mass is concentrated near its center.) has a mass of about 8 × Ό11 solar masses. A star orbiting near the galaxy S periphery. S ,, e İ-lit ears or ts (a) What should the orbital period of that star be? yr If its period is 6.7 x ǐ07 years instead, what is the mass of the galaxy? Such calculations are used...
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 1011 solar masses. A star orbiting near the galaxy's periphery is 5.7 x 104 light-years from its center. (a) What should the orbital period (in y) of that star be? 24.2e6 ху (b) If its period is 5.1 x 107 years instead, what is the mass (in solar masses) of the galaxy? Such calculations are used to imply the existence of other matter,...
The sun orbits the center of the Milky Way galaxy (see figure)
in a period of 2.5 108 years.
(a) Assuming a circular orbit of radius 2.12 1020 m, compute the
mass of the Milky Way.
(b) Estimate the number of stars in the Milky Way, assuming the
average star mass equals the mass of the sun—2.0 1030 kg. units
3. In this problem, we are going to examine the supermassive black hole in the center of our galaxy, Sagittarius A.. (a) (15 points) We can calculate its mass using the orbits of stars gravitationally bound to it in the same way that you can use the Earth's orbit to calculate the mass of the Sun). The orbit of a star, S2, has been fully mapped out. Its period is 15.24 yr and semi-major axis length is 980 AU. Using...
Assuming that H0 = 70 km/s/Mpc, calculate the
mass of the parent galaxy. (M = ? solar masses)
Note: The answer is NOT 9.05*10^17, 9.75*10^17, 1.87*10^33,
4.73*10^12, 4.19*10^11. These are the incorrect answers which I
have enetered in the online assignment
Constants | Periodic Table A small satellite galaxy is moving in a circular orbit around a much more massive parent and just happens to be moving exactly parallel to the line of sight as seen from Earth. The recession...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago