(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.

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Q: 2. (a) Calculate Schwarzschild radius of a blackhole with mass 10 kg. (Sipgints) (b) Calculate its…

A: The Schwarzschild radius or gravitational radius is the radius that defines the event horizon of a…

Q: the book's example of the Schwarzchild radius of the supermassive black hole Sag A* with a mass of…

A:

Q: 7. If a car was on the highway and was trying to pass another ar and went from a speed of 60 m/s to…

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Q: Assuming stars to behave as black bodies stefan-boltzmann law to show that the luminosity of a star…

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Q: Find the speed for a star in which this line appears at wavelength 122.5 nmnm.

A: Given wavelength = 122.5 nm Hydrogen transition wavelength = 121.6 nm Speed of light is c = 3×108…

Q: An x-ray photon escapes the accretion disk of a black hole of 5 solar masses and a radius of 14.7…

A: As per general relativity due to space-time curvature, the frequency of the photon will reduce as it…

Q: If the inner accretion disk around a black hole has a temperature of 10 6 K, at what wavelength will…

A:

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A: The characteristic must a binary star posses for it to be a good candidate for black hole is,  From…

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A: Escape velocity is the speed  that is sufficient for a body to escape from a gravitational center of…

Q: How can we calculate Schwarzschild radius?

A: The Schwarzschild radius is the radius of the object which is obtained by compressing the mass or…

Q: What is the peak wavelength (in nm) of a neutron star's luminosity if its temperature is

A: Given that,Temperature : T = 106 (K)Now,As we know that,Using wein's displacement law : λmax T = b…

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Q: What is the orbital period of a bit of matter in an accretion disk that is located 8 x 10^5 km from…

A: The radius of the black hole is, The mass of the black hole is,

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A: A 1.40 MSun neutron star has a radius of 10.0 km, what is the radius (in km) of a 2.15 MSun neutron…

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A: Required :  The correct option.

Q: Imagine you are in an indestructible spaceship orbiting a black hole and you decide to launch a…

A: Given:  You are in an indestructible spaceship orbiting a black hole and A probe is launched into…

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A: Given . Picture with mass and size

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Q: Suppose a quasar is shining with a luminosity L. What is the approximate minimal mass of the black…

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Q: Astronomers are studying the supermassive black hole (SMBH) of an AGN with a mass of 108 Mo. The…

A: Given :             Red shift of SMBH = 0.05             Velocity of dispersion = 300 km/s…

Q: The angular size of the black hole at the center of M87 is about 10 microarcseconds, or 2.8 x 10-9…

A: Given Wavelength = 1 um = 10-6 m  Angular size = 2.8 × 10-9 degree = 2.8 × 10-9 ×(π /180) radian…

Q: Φ(r) GM (r² +r²)¹/2

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Q: You are the leader of the international Event Horizon Telescope, a collaboration of radio…

A: Given that:Let D is the diameter of the instrument.