The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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Chapter 21, Problem 49Q

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The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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a)What are the two known sources of gamma-ray bursts? B)In what way do the bursts differ from each other?

1.2 1.0 0.8 0.6 Cosmic background data from COBE 0.4 0.2 0.0 0.5 10 Wavelength A in mm c) Background (CMB) undertaken by the COBE satellite. Use this diagram to estimate the current temperature of the CMB. Based on your estimate, what would the temperature of the CMB have been at a redshift of z = 5000? The left hand diagram above shows the results from observations of the Cosmic Microwave Radiated Intensity per Unit Wavelength (16° Watts/m per mm)

Problem 2: Black hole – the ultimate blackbody A black hole emits blackbody radiation called Hawking radiation. A black hole with mass M has a total energy of Mc², a surface area of 167G²M² /c*, and a temperature of hc³/167²KGM. a) Estimate the typical wavelength of the Hawking radiation emitted by a 1 solar mass black hole (2 × 103ºkg). Compare your answer to the size of the black hole. b) Calculate the total power radiated by a one-solar mass black hole. c) Imagine a black hole in empty space, where it emits radiation but absorbs nothing. As it loses energy, its mass must decrease; one could say "evaporates". Derive a differential equation for the mass as a function of time, and solve to obtain an expression for the lifetime of a black hole in terms of its mass.

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Chapter 21, Problem 49Q

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To write:

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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Chapter 21, Problem 49Q

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The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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Chapter 21, Problem 49Q

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To write:

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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Chapter 21, Problem 49Q

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To write:

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

Answer 6

Chapter 21, Problem 49Q

To determine

To write:

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

Answer 7

Chapter 21, Problem 49Q

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To write:

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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Ch. 21 - Prob. 1Q Ch. 21 - Prob. 2Q Ch. 21 - Prob. 3Q Ch. 21 - Prob. 4Q Ch. 21 - Prob. 5Q Ch. 21 - Prob. 6Q Ch. 21 - Prob. 7Q Ch. 21 - Prob. 8Q Ch. 21 - Prob. 9Q Ch. 21 - Prob. 10Q

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

Solution Summary: The author summarizes the evidence that gamma ray bursts originated from a process involving the star in the distant galaxy.

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The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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Chapter 21 Solutions

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

Solution Summary: The author summarizes the evidence that gamma ray bursts originated from a process involving the star in the distant galaxy.

Concept explainers

To write: The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.

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Chapter 21 Solutions

To write:

The summary of the evidence that gamma ray bursts originated from a process involving a star in a distant galaxy.