Answered: It seems that most of the mass in the…

It seems that most of the mass in the Milky Way (about 95%) is made of some sort of matter that does not generate light, as stars do. What name do you think is given to thisnon-luminous matter?

Astronomy

1st Edition

ISBN:9781938168284

Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Chapter27: Active Galaxies, Quasars, And Supermassive Black Holes

Section: Chapter Questions

Problem 16E: Could the Milky Way ever become an active galaxy? Is it likely to ever be as luminous as a quasar?

See similar textbooks

Related questions

Q: What are the three main types of galaxies, and what are the peculiarities? What type is the Milky…

A: There are three main types of galaxies. They are, spiral galaxies, elliptical galaxies, and…

Q: What are the challenges of determining the structure of the Milky Way? Dark matter absorbs light…

A: 1. Dark matter does not absorb, reflect or emit light.

Q: What is nebulae?

A: The cloud of dust and gas that is known to fill up the space between stars in the solar system such…

Q: Disk population stars have I. circular orbits in the plane of the galaxy II. randomly…

Q: If the dark matter in the Milky Way were composed entirely of MACHOs (evidence shows it is not),…

Q: random times over the last 1010 years. The rate of star formation is simply the number of stars…

A: Number of stars in our milky Way galaxy is N=9×1010 Time taken in the formation of a plane

Q: Where is Uranium produced? Group of answer choices In the early universe after the Big Bang. In the…

A: During supernova explosions, this is very powerful explosion creating atomic nuclei during the…

Q: At the average density of a star-forming molecular cloud, about 900 atoms per cm3, determine how…

A: Given:- M=2 times 1030 kg density=900 atoms/cm3= 1.51 times 10-18 kg/m3 Find radius of the sphere…

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: What is the name for the spherical cloud of thinly scattered stars and globular clusters that…

A: Given : What is the name for the spherical cloud of thinly scattered stars and globular clusters…

Q: observe a star orbiting the massive object at the galactic center at a speed of 1090 km/s in a…

Q: You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your…

A: Given data : mass of proton, m = 1.673 × 10-27 kg density of interstellar medium, d = 1 hydrogen…

Q: What triggers the nucleus of a galaxy into activity? a. a nova explosion b. a type I supernova…

A: (e) none of above

Q: A star with mass m = 2.624 x 1030 kg revolves around the center of mass of the Milky Way galaxy in…

A: Given, Radius of orbit is 3.7*1020 meter and velocity is 400,000 m/s

Q: Which of the following is an accurate statement about quasars?

A: ANS: They are abnormally massive, luminous stars at the cores of ancient galaxies.

Q: A star at a distance of 50000 light years from the center of a galaxy has an orbital speed of 100…

Q: What are globular clusters and what did the ones in the Milky Way help us to measure?

A: SPACE AND ASTRONOMY

Q: If the dark matter in the Milky Way were composed entirely of MACHOs (evidence shows it is not),…

A: Given data: Mass of MACHO is, mM=11000ms (ms denotes the mass of sun). Mass of dark…

Q: If a galaxy has an apparent radial velocity of 2,319 km/s and the Hubble constant is 70 km/s/Mpc,…

Q: If Hubble’s constant is taken to be 70 km/sec/Mpc, and a quasar is found with a radial velocity of…

A: Given data: The Hubble’s constant is H0=70 km/sec/Mpc. The radial velocity is v=0.95c.

Q: At the low temperature found in some interstellar molecular clouds (around 100 K), molecular oxygen…

Q: Based on the value you have found in problem 3, if the mass of the Sun is about 2.0 x 1030 kg, what…

A: Given data The mass of the sun is given as ms = 2 x 1030 kg. The value found in the previous…

Q: The lower limit of the mass of the galaxy is a. 100 solar masses. b. 100,000 solar…

A: A lower mass limit is provided because of the timing argument. The timing argument states that all…

Q: If a star in our own Milky Way galaxy is moving away from us at 4,811 km/s, by what percentage will…

Q: you will compare the balloon to our universe, with the dots / markings as galaxies or galaxy…

A: The balloon is compared to the universe and the dots are compared to the Galaxies, then When the…

Q: Based on comparison with the Moon, it can be calculated that Andromeda would have to have a diameter…

Q: You observe two randomly chosen stars 10,000 lightyears from Earth. One is in the disk of the Milky…

A: In this question we have to observe two randomly chosen stars 10,000 lightyears from Earth. One is…

Q: Assume that the average galaxy contains 1011 MSun and that the average distance between galaxies is…

A: The average density of matter in galaxies is ρ=mV=m43πr3=1011Msun43π10 millionlightyears×9.46×1021…

Q: What is at the center of the Milky Way Galaxy?

A: Required: What is at the center of the Milky Way Galaxy?

Q: The radius of the nebula is about 0.401 light-years. The gas is expanding away from the star at a…

A: Given that, r=0.401 light year1 light year=9.46×1015 mr=0.401×9.46×1015=3.79×1015 mThe particle at…

Q: The galactic corona is believed to contain mostly a. O and B stars. b. G, K, and M stars. c.…

A: Galactic corona is the gaseous disc which surrounds a galaxy forming a halo. They contain hot,…

Q: If the dark matter in the Milky Way were composed entirely of MACHOs (evidence shows it is not),…

A: Given: Average mass of a MACHO mM = 11000 The dark matter has a mass 10 times that of the luminous…

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…

Q: You observe a star orbiting the massive object at the galactic center at a speed of 1090 km/s in a…

A: Given that the speed of the object and radius of the circular orbit then we have to determine the…

Q: If a standard passenger aircraft can fly at 0.26 km/s (582 mph), how long (in yr) would it take to…

A: Given that :Speed of passenger air craft (v)=0.26 km/s…

Q: If you want to find a sizeable collection of Population Il stars in the Milky Way Galaxy, where…

A: B) option They are particularly found in the spiral arms. Population II stars tend to be found in…

Q: Which of these colors of light passes most easily through interstellar clouds? a Green light…

A: among green, red, blue and violet light,red light have longer wavelength.

Concept explainers

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.

Question

It seems that most of the mass in the Milky Way (about 95%) is made of some sort of matter that does not generate light, as stars do. What name do you think is given to thisnon-luminous matter?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Assume that dark matter is uniformly distributed throughout the Milky Way, not just in the outer halo but also throughout the bulge and in the disk, where the solar system lives. How much dark matter would you expect there to be inside the solar system? Would you expect that to be easily detectable? Hint: For the radius of the Milky Way’s dark matter halo, use R=300,000 light-years; for the solar system’s radius, use 100 AU; and start by calculating the ratio of the two volumes.
Explain why the abundances of heavy elements in stars correlate with their positions in the Galaxy.
Why do molecules, including H2 and more complex organic molecules, only form inside dark clouds? Why don’t they fill all interstellar space?
What are globular clusters and what did the ones in the Milky Way help us to measure?
If the dark matter in the Milky Way were composed entirely of MACHOs (evidence shows it is not), approximately how many would there have to be? Assume the average mass of a MACHO is 1/1000 that of the Sun, and that dark matter has a mass 10 times that of the luminous Milky Waygalaxy with its 1011 stars of average mass 1.5 times the Sun’s mass.
You observe two randomly chosen stars 10,000 lightyears from Earth. One is in the disk of the Milky Way, the other in a direction perpendicular out of the disk. Compare the likely luminosity, doppler shift, metallicity, age, and color of these two stars.
If the dark matter in the Milky Way were composed entirely of MACHOs (evidence shows it is not), approximately how many would there have to be? Assume the average mass of a MACHO is 1/1000 that of the Sun, and that dark matter has a mass 10 times that of the luminous Milky Way galaxy with its 1011 stars of average mass 1.5 times the Sun’s mass.
If the dark matter in the Milky Way were composed entirely of MACHOs (evidence shows it is not), approximately how many would there have to be?Assume the average mass of a MACHO is 1/1000 that of the Sun, and that dark matter has a mass 10 times that of the luminous Milky Way galaxy with its 1011 stars of average mass 1.5 times the Sun’s mass.
Could the Milky Way ever become an active galaxy? Is it likely to ever be as luminous as a quasar?
When Henrietta Leavitt discovered the period-luminosity relationship, she used cepheid stars that were all located in the Small Magellanic Cloud. Why did she need to use stars in another galaxy and not cepheids located in the Milky Way?