The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

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Answer 1

Question

Chapter 23, Problem 1Q

To determine

The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

Expert Solution & Answer

Explanation of Solution

Introduction:

Spiral nebulas have a very different shape when compared with other nebulas. Our Milky Way itself is a spiral galaxy with arching spiral arms that are active sites of star formation. Other nebulae are ellipse-shaped agglomerations of stars. Most galaxies are located as groups or clusters.

In 1755, the German philosopher Immanuel Kant suggested that vast collections of stars lie outside the confines of the Milky Way and introduced the concept of “island universes”. Many nineteenth-century astronomers who believed the concept of “island universe” think that the “spiral nebulae” are part of the Milky Way because they are relatively small and they look like nearby objects scattered around our galaxy like globular clusters.

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The Tully-Fischer method relies on being able to relate the mass of a galaxy to its rotation velocity. Stars in the outer-most regions of the Milky Way galaxy, located at a distance of 50 kpc from the galactic centre, are observed to orbit at a speed vrot = 250 km s−1. Using Kepler’s 3rd Law, determine the mass in the Milky Way that lies interior to 50 kpc. Express your answer in units of the Solar mass.

Answer 2

Question

Chapter 23, Problem 1Q

To determine

The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

Expert Solution & Answer

Explanation of Solution

Introduction:

Spiral nebulas have a very different shape when compared with other nebulas. Our Milky Way itself is a spiral galaxy with arching spiral arms that are active sites of star formation. Other nebulae are ellipse-shaped agglomerations of stars. Most galaxies are located as groups or clusters.

In 1755, the German philosopher Immanuel Kant suggested that vast collections of stars lie outside the confines of the Milky Way and introduced the concept of “island universes”. Many nineteenth-century astronomers who believed the concept of “island universe” think that the “spiral nebulae” are part of the Milky Way because they are relatively small and they look like nearby objects scattered around our galaxy like globular clusters.

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Answer 3

Question

Chapter 23, Problem 1Q

To determine

The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

Expert Solution & Answer

Explanation of Solution

Introduction:

Spiral nebulas have a very different shape when compared with other nebulas. Our Milky Way itself is a spiral galaxy with arching spiral arms that are active sites of star formation. Other nebulae are ellipse-shaped agglomerations of stars. Most galaxies are located as groups or clusters.

In 1755, the German philosopher Immanuel Kant suggested that vast collections of stars lie outside the confines of the Milky Way and introduced the concept of “island universes”. Many nineteenth-century astronomers who believed the concept of “island universe” think that the “spiral nebulae” are part of the Milky Way because they are relatively small and they look like nearby objects scattered around our galaxy like globular clusters.

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Answer 4

Question

Chapter 23, Problem 1Q

To determine

The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

Expert Solution & Answer

Explanation of Solution

Introduction:

Spiral nebulas have a very different shape when compared with other nebulas. Our Milky Way itself is a spiral galaxy with arching spiral arms that are active sites of star formation. Other nebulae are ellipse-shaped agglomerations of stars. Most galaxies are located as groups or clusters.

In 1755, the German philosopher Immanuel Kant suggested that vast collections of stars lie outside the confines of the Milky Way and introduced the concept of “island universes”. Many nineteenth-century astronomers who believed the concept of “island universe” think that the “spiral nebulae” are part of the Milky Way because they are relatively small and they look like nearby objects scattered around our galaxy like globular clusters.

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

Answer 5

Chapter 23, Problem 1Q

To determine

The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

Expert Solution & Answer

Explanation of Solution

Introduction:

Spiral nebulas have a very different shape when compared with other nebulas. Our Milky Way itself is a spiral galaxy with arching spiral arms that are active sites of star formation. Other nebulae are ellipse-shaped agglomerations of stars. Most galaxies are located as groups or clusters.

In 1755, the German philosopher Immanuel Kant suggested that vast collections of stars lie outside the confines of the Milky Way and introduced the concept of “island universes”. Many nineteenth-century astronomers who believed the concept of “island universe” think that the “spiral nebulae” are part of the Milky Way because they are relatively small and they look like nearby objects scattered around our galaxy like globular clusters.

Answer 6

Chapter 23, Problem 1Q

To determine

The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

Expert Solution & Answer

Explanation of Solution

Introduction:

Spiral nebulas have a very different shape when compared with other nebulas. Our Milky Way itself is a spiral galaxy with arching spiral arms that are active sites of star formation. Other nebulae are ellipse-shaped agglomerations of stars. Most galaxies are located as groups or clusters.

In 1755, the German philosopher Immanuel Kant suggested that vast collections of stars lie outside the confines of the Milky Way and introduced the concept of “island universes”. Many nineteenth-century astronomers who believed the concept of “island universe” think that the “spiral nebulae” are part of the Milky Way because they are relatively small and they look like nearby objects scattered around our galaxy like globular clusters.

Answer 7

Chapter 23, Problem 1Q

To determine

The reason the astronomers in the nineteenth-century thought that the“spiral nebulae” are a part of the Milky Way.

Answer 8

Expert Solution & Answer

Explanation of Solution

Introduction:

Spiral nebulas have a very different shape when compared with other nebulas. Our Milky Way itself is a spiral galaxy with arching spiral arms that are active sites of star formation. Other nebulae are ellipse-shaped agglomerations of stars. Most galaxies are located as groups or clusters.

In 1755, the German philosopher Immanuel Kant suggested that vast collections of stars lie outside the confines of the Milky Way and introduced the concept of “island universes”. Many nineteenth-century astronomers who believed the concept of “island universe” think that the “spiral nebulae” are part of the Milky Way because they are relatively small and they look like nearby objects scattered around our galaxy like globular clusters.