NGC 3379 is an E1 galaxy at a distance of 14.8 Mpc that has an apparent B band magnitude of 10.65 and a central velocity dispersion of 220 kms−1. M87 is also an E1 galaxy, but lies in the Virgo cluster. M87 has a central velocity dispersion of 315kms−1 and an apparent B-band magnitude of 10.1. Assuming that both of these galaxies exactly follow the scaling relation that connects these properties, what is the distance to M87?
NGC 3379 is an E1 galaxy at a distance of 14.8 Mpc that has an apparent B band magnitude of 10.65 and a central velocity dispersion of 220 kms−1. M87 is also an E1 galaxy, but lies in the Virgo cluster. M87 has a central velocity dispersion of 315kms−1 and an apparent B-band magnitude of 10.1. Assuming that both of these galaxies exactly follow the scaling relation that connects these properties, what is the distance to M87?
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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NGC 3379 is an E1 galaxy at a distance of 14.8 Mpc that has an apparent B band magnitude of 10.65 and a central velocity dispersion of 220 kms−1. M87 is also an E1 galaxy, but lies in the Virgo cluster. M87 has a central velocity dispersion of 315kms−1 and an apparent B-band magnitude of 10.1. Assuming that both of these galaxies exactly follow the scaling relation that connects these properties, what is the distance to M87?
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