Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Question
Chapter 13, Problem 10P
To determine
The red shift of this quasar if the hydrogen Balmer line Hb has a wavelength of 486.1 nm, shifted to 563.9 nm in the spectrum of 3C 273.
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Check out a sample textbook solutionStudents have asked these similar questions
If a quasar has a recessional velocity of 2.7 × 10 5 km/sec and is determined to be 3600 Mpc, what is the Hubble constant based on this quasar alone?
a.
50 km/sec/Mpc
b.
9.7 × 108 km/sec/Mpc
c.
75 km/sec/Mpc
d.
0.013 km/sec/Mpc
e.
273,600 km/sec/Mpc
Give the peak wavelengths, λpeak, for each of the following cases. State which portion of the electromagnetic spectrum it falls within.
A quasar, with T = 1.0 × 105 K. (In nm.)
If Hubble’s constant is taken to be 70 km/sec/Mpc, and a quasar is found with a radial velocity of 0.95 times the speed of light (3 × 10 5 km/s), how far away is the quasar?
a.
4100 Mpc
b.
0.014 Mpc
c.
67 Mpc
d.
74 Mpc
e.
300,000 Mpc
Chapter 13 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 13 - Prob. 1RQCh. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQ
Ch. 13 - Prob. 11RQCh. 13 - Prob. 12RQCh. 13 - Prob. 13RQCh. 13 - From what you know about star formation and the...Ch. 13 - Prob. 2DQCh. 13 - Prob. 3DQCh. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - Prob. 3PCh. 13 - Prob. 4PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - Prob. 9PCh. 13 - Prob. 10PCh. 13 - Prob. 1LTLCh. 13 - Prob. 2LTLCh. 13 - Prob. 3LTLCh. 13 - Prob. 4LTL
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- If a quasar has a redshift of 3.3, at what fraction of the speed of light is it moving away from us?arrow_forwardWhat is the typical structure we observe in a quasar at radio frequencies?arrow_forwardIn the chapter, we discussed that the largest redshifts found so far are greater than 6. Suppose we find a quasar with a redshift of 6.1. With what fraction of the speed of light is it moving away from us?arrow_forward
- Describe the process by which the action of a black hole can explain the energy radiated by quasars.arrow_forwardSuppose you observe a star-like object in the sky. How can you determine whether it is actually a star or a quasar?arrow_forwardImagine that an observed distant galaxy is measured to have a distance of 40 Mpc by a Type Ia supernovae and the redshift of the galaxy indicates the galaxy appears to be moving away from us at a speed of 2400 km/s. What would the Hubble constant be if measured solely based on this galaxy in units of km/s/Mpc?arrow_forward
- Describe a quasar.arrow_forwardWhy don’t any of the methods for establishing distances to galaxies, described in Galaxies (other than Hubble’s law itself), work for quasars?arrow_forwardThe quasar that appears the brightest in our sky, 3C 273, is located at a distance of 2.4 billion lightyears. The Sun would have to be viewed from a distance of 1300 light-years to have the same apparent magnitude as 3C 273. Using the inverse square law for light, estimate the luminosity of 3C 273 in solar units.arrow_forward
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