Calculating the Hubble Constant (Ho) 1. Using the equations given in the introduction, find the distance and recessional velocities of the galaxies in the following table. 2. Make a graph with recessional velocity (in km/s) on the y-axis and distance (in megaparsecs (Mpc)) on the x-axis. 3. Plot each of the galaxies in the table on this graph. 4. Find the slope of the best fit line for the plotted data. 5. Compare your slope to the accepted value of Hubble's constant (Ho = 70 km/Mpc) by computing your percent error. For each galaxy in the table below, assume that the absolute magnitude is (M = -21) and the emitted wavelength of light is (A(emitted) =656 nm). Galaxy Apparent Magnitude (m) X(obsorved) (nm) 1 2.5 656.08 4 656.15 3 12.5 663.9 4 15.5 687.5 18.5 793.76 19 833.1 20.5 1089 8. 21 1272.6 9. 21.4 1561.3 10 22 3536
Calculating the Hubble Constant (Ho) 1. Using the equations given in the introduction, find the distance and recessional velocities of the galaxies in the following table. 2. Make a graph with recessional velocity (in km/s) on the y-axis and distance (in megaparsecs (Mpc)) on the x-axis. 3. Plot each of the galaxies in the table on this graph. 4. Find the slope of the best fit line for the plotted data. 5. Compare your slope to the accepted value of Hubble's constant (Ho = 70 km/Mpc) by computing your percent error. For each galaxy in the table below, assume that the absolute magnitude is (M = -21) and the emitted wavelength of light is (A(emitted) =656 nm). Galaxy Apparent Magnitude (m) X(obsorved) (nm) 1 2.5 656.08 4 656.15 3 12.5 663.9 4 15.5 687.5 18.5 793.76 19 833.1 20.5 1089 8. 21 1272.6 9. 21.4 1561.3 10 22 3536
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
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Transcribed Image Text:Calculating the Hubble Constant (Ho)
1. Using the equations given in the introduction, find the distance and recessional velocities of the galaxies
in the following table.
2. Make a graph with recessional velocity (in km/s) on the y-axis and distance (in megaparsecs (Mpc))
on the x-axis.
3. Plot each of the galaxies in the table on this graph.
4. Find the slope of the best fit line for the plotted data.
5. Compare your slope to the accepted value of Hubble's constant (Họ = 70 km/Mpc) by computing your
percent error.
For each galaxy in the table below, assume that the absolute magnitude is (M = -21) and the emitted
wavelength of light is (X(emitted) =656 nm).
Galaxy Apparent Magnitude (m) d(observed) (nm)
1
2.5
656.08
2
4
656.15
3
12.5
663.9
4
15.5
687.5
18.5
793.76
6
19
833.1
20.5
1089
8
21
1272.6
21.4
1561.3
10
22
3536
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