The Arches cluster is located in the Galactic Center, about 8.1 kpc away from Earth. The observed

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The Arches cluster is located in the Galactic Center, about 8.1 kpc away from Earth. The observed angular diameter of the cluster is 0.5’ (arcmin). The time-averaged velocity of stars in the cluster is about 7 km s^-1 .

(a) What is the physical size (radius) of the Arches cluster in pc?

(b) Assuming that the cluster is gravitationally bound and in virial equilibrium, what is the total mass of the cluster?

Related Book For answer-question

Modern Classical Physics Optics Fluids Plasmas Elasticity Relativity And Statistical Physics

ISBN: 9780691159027

1st Edition

Authors: Kip S. Thorne, Roger D. Blandford

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Posted Date: Feb 10, 2024 02:59 AM

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The Arches cluster is located in the Galactic Center, about 8.1 kpc away from Earth. The observed

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Modern Classical Physics Optics Fluids Plasmas Elasticity Relativity And Statistical Physics

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