The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Question

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Answer 1

Question

Chapter 5, Problem 1HRP

To determine

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Expert Solution & Answer

Answer to Problem 1HRP

The star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Explanation of Solution

H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is.

Star is classified on the basis of spectral characteristics. There are seven major spectral types OBAFGKM is the spectral sequence. Here, O types are the hottest stars and M is the coolest. Sun lies in the spectral type G₂.

Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude.

Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star.

a) Spectral type: B
b) Temperature: $17000 K −18000 K$

c) Absolute magnitude: $0 to (−1)$

d) Luminosity: 100 solar units

Conclusion:

Thus, the star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

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Answer 2

Question

Chapter 5, Problem 1HRP

To determine

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Expert Solution & Answer

Answer to Problem 1HRP

The star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Explanation of Solution

H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is.

Star is classified on the basis of spectral characteristics. There are seven major spectral types OBAFGKM is the spectral sequence. Here, O types are the hottest stars and M is the coolest. Sun lies in the spectral type G₂.

Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude.

Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star.

a) Spectral type: B
b) Temperature: $17000 K −18000 K$

c) Absolute magnitude: $0 to (−1)$

d) Luminosity: 100 solar units

Conclusion:

Thus, the star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

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Answer 3

Question

Chapter 5, Problem 1HRP

To determine

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Expert Solution & Answer

Answer to Problem 1HRP

The star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Explanation of Solution

H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is.

Star is classified on the basis of spectral characteristics. There are seven major spectral types OBAFGKM is the spectral sequence. Here, O types are the hottest stars and M is the coolest. Sun lies in the spectral type G₂.

Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude.

Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star.

a) Spectral type: B
b) Temperature: $17000 K −18000 K$

c) Absolute magnitude: $0 to (−1)$

d) Luminosity: 100 solar units

Conclusion:

Thus, the star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

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Answer 4

Question

Chapter 5, Problem 1HRP

To determine

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Expert Solution & Answer

Answer to Problem 1HRP

The star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Explanation of Solution

H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is.

Star is classified on the basis of spectral characteristics. There are seven major spectral types OBAFGKM is the spectral sequence. Here, O types are the hottest stars and M is the coolest. Sun lies in the spectral type G₂.

Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude.

Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star.

a) Spectral type: B
b) Temperature: $17000 K −18000 K$

c) Absolute magnitude: $0 to (−1)$

d) Luminosity: 100 solar units

Conclusion:

Thus, the star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

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Answer 5

Chapter 5, Problem 1HRP

To determine

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Expert Solution & Answer

Answer to Problem 1HRP

The star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Explanation of Solution

H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is.

Star is classified on the basis of spectral characteristics. There are seven major spectral types OBAFGKM is the spectral sequence. Here, O types are the hottest stars and M is the coolest. Sun lies in the spectral type G₂.

Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude.

Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star.

a) Spectral type: B
b) Temperature: $17000 K −18000 K$

c) Absolute magnitude: $0 to (−1)$

d) Luminosity: 100 solar units

Conclusion:

Thus, the star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Answer 6

Chapter 5, Problem 1HRP

To determine

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Expert Solution & Answer

Answer to Problem 1HRP

The star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Explanation of Solution

H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is.

Star is classified on the basis of spectral characteristics. There are seven major spectral types OBAFGKM is the spectral sequence. Here, O types are the hottest stars and M is the coolest. Sun lies in the spectral type G₂.

Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude.

Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star.

a) Spectral type: B
b) Temperature: $17000 K −18000 K$

c) Absolute magnitude: $0 to (−1)$

d) Luminosity: 100 solar units

Conclusion:

Thus, the star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Answer 7

Chapter 5, Problem 1HRP

To determine

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Answer 8

Expert Solution & Answer

Answer to Problem 1HRP

The star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is.

Star is classified on the basis of spectral characteristics. There are seven major spectral types OBAFGKM is the spectral sequence. Here, O types are the hottest stars and M is the coolest. Sun lies in the spectral type G₂.

Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude.

Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star.

a) Spectral type: B
b) Temperature: $17000 K −18000 K$

c) Absolute magnitude: $0 to (−1)$

d) Luminosity: 100 solar units

Conclusion:

Thus, the star A is of spectral type B, having temperature in the range of $17000 K −18000 K$ . The star A has absolute magnitude of $0 to (−1)$ and luminosity of star A is 100 solar units.

Answer 12

Ch. 5 - Prob. 1HRP Ch. 5 - Prob. 2HRP Ch. 5 - Prob. 3HRP Ch. 5 - Prob. 4HRP Ch. 5 - Prob. 5HRP Ch. 5 - Prob. 6HRP Ch. 5 - Stars of the same spectral type have the same...Ch. 5 - Prob. 8HRP Ch. 5 - Prob. 9HRP Ch. 5 - Prob. 1STP

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Concept explainers

The spectral type, temperature, absolute magnitude number, and luminosity of Star A.

Answer to Problem 1HRP

Explanation of Solution

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Chapter 5 Solutions