When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 23, Problem 1CC

To determine

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Expert Solution & Answer

Answer to Problem 1CC

Solution:

The closeness of “spiral nebula” as compared to other stars in our galaxy will give evidence that supports Shapley’s argument.

Explanation of Solution

Introduction:

Spiral nebulae: Spiral nebulae are the clouds that are spiral in shape, which were later found to be galaxies themselves. These lie outside the region of the Milky Way.

Explanation:

The astronomical community was divided into two groups on the basis of nature of the spiral nebula. In April 1920 two different ideas were presented in front of the National academy of science in Washington D.C.

On one side there was a scientist named Harley Shapley, who was from the Mount Wilson Observatory. According to Shapley, the size of the spiral nebula was relatively small and the nearby objects scattered around our galaxy.

On the other hand, was Heber D. Curtis from the University of California Lick laboratory, who said that each of these spiral nebulae is a rotating system of stars similar to our galaxy.

Conclusion:

From the above observation, it can be concluded that if the spiral nebula is closer than some of the starts, then it would give evidence in favor of Harley Shapley’s argument.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

A planetary nebula expanded in radius 0.3 arc seconds in 30 years. Doppler measurements show the nebula is expanding at a rate of 35 km/s. How far away is the nebula in parsecs? First, determine what distance the nebular expanded in parsecs during the time mentioned. Δd = vpc/sTs So we first need to convert the rate into pc/s and the time into seconds: vpc/s = vkm/s (1 pc / 3.09 x 1013km) vpc/s = ? Ts = (Tyr)(365 days/yr)(24 hrs/day)(3600 s/hr) Ts = ? s Δd= vpc/sTs Therefore, Δd = ? pc

Consider the Milky Way disk, which has a 50 kpc diameter and a total height of 600 pc. Suppose that the Sun orbits precisely at the mid-plane of the disk in a circular orbit. Supernovae explosions happen randomly throughout the disk at a rate of about 2 per 100 years. Consider a spherical region around the Sun with a radius of 300 pc. Ignore the Milky Way bulge and halo in this problem; assume the Milky Way disk is perfectly uniform and extends all the way through the region of the bulge. (I.e., the Milky Way is modeled *only* as a cylindrical disk--like a hockey puck-- with constant density throughout.) If a particular supernova goes off at a random location within the disk, what is the probability that it went off in the 300 pc radius spherical region near the Sun? Express your probability as a percentage (but without writing the percent sign). [Hint: there is a 100% probability that the supernova went off somewhere in the volume of the Milky Way disk; there is a 50% probability that…

At the average density of a star-forming molecular cloud, about 900 atoms per cm3, determine how large a sphere you would need to encompass mass equal to that of the Sun? Enter the radius of this sphere in light-years. (HINTS: 900 atoms per cm3 corresponds to a density of 1.51×10-18kg/m^3; the mass of the Sun is 2×1030kg) (The volume of a sphere is 4/3 * π * R3) (my previous answer of 6.812 X 1015 was incorrect)

Answer 2

Question

Chapter 23, Problem 1CC

To determine

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Expert Solution & Answer

Answer to Problem 1CC

Solution:

The closeness of “spiral nebula” as compared to other stars in our galaxy will give evidence that supports Shapley’s argument.

Explanation of Solution

Introduction:

Spiral nebulae: Spiral nebulae are the clouds that are spiral in shape, which were later found to be galaxies themselves. These lie outside the region of the Milky Way.

Explanation:

The astronomical community was divided into two groups on the basis of nature of the spiral nebula. In April 1920 two different ideas were presented in front of the National academy of science in Washington D.C.

On one side there was a scientist named Harley Shapley, who was from the Mount Wilson Observatory. According to Shapley, the size of the spiral nebula was relatively small and the nearby objects scattered around our galaxy.

On the other hand, was Heber D. Curtis from the University of California Lick laboratory, who said that each of these spiral nebulae is a rotating system of stars similar to our galaxy.

Conclusion:

From the above observation, it can be concluded that if the spiral nebula is closer than some of the starts, then it would give evidence in favor of Harley Shapley’s argument.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 23, Problem 1CC

To determine

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Expert Solution & Answer

Answer to Problem 1CC

Solution:

The closeness of “spiral nebula” as compared to other stars in our galaxy will give evidence that supports Shapley’s argument.

Explanation of Solution

Introduction:

Spiral nebulae: Spiral nebulae are the clouds that are spiral in shape, which were later found to be galaxies themselves. These lie outside the region of the Milky Way.

Explanation:

The astronomical community was divided into two groups on the basis of nature of the spiral nebula. In April 1920 two different ideas were presented in front of the National academy of science in Washington D.C.

On one side there was a scientist named Harley Shapley, who was from the Mount Wilson Observatory. According to Shapley, the size of the spiral nebula was relatively small and the nearby objects scattered around our galaxy.

On the other hand, was Heber D. Curtis from the University of California Lick laboratory, who said that each of these spiral nebulae is a rotating system of stars similar to our galaxy.

Conclusion:

From the above observation, it can be concluded that if the spiral nebula is closer than some of the starts, then it would give evidence in favor of Harley Shapley’s argument.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 23, Problem 1CC

To determine

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Expert Solution & Answer

Answer to Problem 1CC

Solution:

The closeness of “spiral nebula” as compared to other stars in our galaxy will give evidence that supports Shapley’s argument.

Explanation of Solution

Introduction:

Spiral nebulae: Spiral nebulae are the clouds that are spiral in shape, which were later found to be galaxies themselves. These lie outside the region of the Milky Way.

Explanation:

The astronomical community was divided into two groups on the basis of nature of the spiral nebula. In April 1920 two different ideas were presented in front of the National academy of science in Washington D.C.

On one side there was a scientist named Harley Shapley, who was from the Mount Wilson Observatory. According to Shapley, the size of the spiral nebula was relatively small and the nearby objects scattered around our galaxy.

On the other hand, was Heber D. Curtis from the University of California Lick laboratory, who said that each of these spiral nebulae is a rotating system of stars similar to our galaxy.

Conclusion:

From the above observation, it can be concluded that if the spiral nebula is closer than some of the starts, then it would give evidence in favor of Harley Shapley’s argument.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 23, Problem 1CC

To determine

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Expert Solution & Answer

Answer to Problem 1CC

Solution:

The closeness of “spiral nebula” as compared to other stars in our galaxy will give evidence that supports Shapley’s argument.

Explanation of Solution

Introduction:

Spiral nebulae: Spiral nebulae are the clouds that are spiral in shape, which were later found to be galaxies themselves. These lie outside the region of the Milky Way.

Explanation:

The astronomical community was divided into two groups on the basis of nature of the spiral nebula. In April 1920 two different ideas were presented in front of the National academy of science in Washington D.C.

On one side there was a scientist named Harley Shapley, who was from the Mount Wilson Observatory. According to Shapley, the size of the spiral nebula was relatively small and the nearby objects scattered around our galaxy.

On the other hand, was Heber D. Curtis from the University of California Lick laboratory, who said that each of these spiral nebulae is a rotating system of stars similar to our galaxy.

Conclusion:

From the above observation, it can be concluded that if the spiral nebula is closer than some of the starts, then it would give evidence in favor of Harley Shapley’s argument.

Answer 6

Chapter 23, Problem 1CC

To determine

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Expert Solution & Answer

Answer to Problem 1CC

Solution:

The closeness of “spiral nebula” as compared to other stars in our galaxy will give evidence that supports Shapley’s argument.

Explanation of Solution

Introduction:

Spiral nebulae: Spiral nebulae are the clouds that are spiral in shape, which were later found to be galaxies themselves. These lie outside the region of the Milky Way.

Explanation:

The astronomical community was divided into two groups on the basis of nature of the spiral nebula. In April 1920 two different ideas were presented in front of the National academy of science in Washington D.C.

On one side there was a scientist named Harley Shapley, who was from the Mount Wilson Observatory. According to Shapley, the size of the spiral nebula was relatively small and the nearby objects scattered around our galaxy.

On the other hand, was Heber D. Curtis from the University of California Lick laboratory, who said that each of these spiral nebulae is a rotating system of stars similar to our galaxy.

Conclusion:

From the above observation, it can be concluded that if the spiral nebula is closer than some of the starts, then it would give evidence in favor of Harley Shapley’s argument.

Answer 7

Chapter 23, Problem 1CC

To determine

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Answer 8

Expert Solution & Answer

Answer to Problem 1CC

Solution:

The closeness of “spiral nebula” as compared to other stars in our galaxy will give evidence that supports Shapley’s argument.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Introduction:

Spiral nebulae: Spiral nebulae are the clouds that are spiral in shape, which were later found to be galaxies themselves. These lie outside the region of the Milky Way.

Explanation:

The astronomical community was divided into two groups on the basis of nature of the spiral nebula. In April 1920 two different ideas were presented in front of the National academy of science in Washington D.C.

On one side there was a scientist named Harley Shapley, who was from the Mount Wilson Observatory. According to Shapley, the size of the spiral nebula was relatively small and the nearby objects scattered around our galaxy.

On the other hand, was Heber D. Curtis from the University of California Lick laboratory, who said that each of these spiral nebulae is a rotating system of stars similar to our galaxy.

Conclusion:

From the above observation, it can be concluded that if the spiral nebula is closer than some of the starts, then it would give evidence in favor of Harley Shapley’s argument.

Answer 12

Ch. 23 - Prob. 1CC Ch. 23 - Prob. 2CC Ch. 23 - Prob. 3CC Ch. 23 - Prob. 4CC Ch. 23 - Prob. 5CC Ch. 23 - Prob. 6CC Ch. 23 - Prob. 7CC Ch. 23 - Prob. 8CC Ch. 23 - Prob. 9CC Ch. 23 - Prob. 10CC

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Concept explainers

When a “spiral nebula” is observed closer than some of our galaxy, would it be an evidence in favor of Shapley’s argument or Curti’s argument.

Answer to Problem 1CC

Explanation of Solution

Want to see more full solutions like this?

Chapter 23 Solutions