ESSENTIAL COSMIC PERS.-W/MASTER.ACCESS
ESSENTIAL COSMIC PERS.-W/MASTER.ACCESS
9th Edition
ISBN: 9780135795750
Author: Bennett
Publisher: PEARSON
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Chapter 14, Problem 31EAP
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(a) Calculate the photon capture radius and the Schwarzschild radius of M87(in AU). (b) Why was it not possible for previous telescopes to take such a picture of the black hole? (c) Describe the components and functionality of the event horizon telescope. (d) Explain the two algorithms used to reconstruct the image from the telescope data. (e) What parameters were required for the GRMHD simulations to generate an image? (f) Explain the physical origins of the features. (central dark region, ring, shadow). (g) How can the image resolution be increased in future observations?
If a circular accretion disk around a 1.4 M neutron Star has a radius of 5.00 x 10^5 km as measured from the center of the neutron Star to the edge of the disk, what is the orbital velocity (in km/s) of a gas particle located at its outer edge? (The mass of the Sun is 1.99 x 10^30 kg. Hint: Use the circular orbit velocity formula, Vc = GM/R ; make sure to express quantities in units, meters, kilograms, & seconds.)  ________ km/s
(a) Calculate the photon capture radius and the Schwarzschild radius of M87* (in AU). (b) Why was it not possible for previous telescopes to take such a picture of the black hole? (c) Describe the components and functionality of the event horizon telescope. (d) Explain the two algorithms used to reconstruct the image from the telescope data. (e) What parameters were required for the GRMHD simulations to generate an image? (f) Explain the physical origins of the features (g) How can the image resolution be increased in future observations? (central dark region, ring, shadow).

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ESSENTIAL COSMIC PERS.-W/MASTER.ACCESS

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