Cosmic Perspective & Mod Mstgastro/et Vp Ac, 8/e
1st Edition
ISBN: 9780134612355
Author: Bennett
Publisher: Pearson Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 18, Problem 25EAP
Decide whether tile statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain clearly, not all of these have definitive answers, so your explanation is more important than your chosen answer
25. Gamman-ray bursts are more likely to be observed in galaxies that are rapidly forming new stars than in galaxies contain lug only old stars.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
2.
List 3 methods used to measure cosmic distances - choose 1 of the techniques and briefly explain in 1-2 sentences how astronomers use this method to calculate cosmic distance.
Astronomy
Briefly explain what evidence we can use to learn about the lives of stars even though their lives are far longer than human lives.
Why do HR diagrams look different for star clusters of different ages? How do we use the diagram to determine the age of the cluster?
How can we estimate how much longer the lifetime of a low-mass star is than the lifetime of a high-mass star?
How do we use parallax to measure the distance to stars?
Explain the inverse square law for light. If we know the distance to a star, how do we find its luminosity? If we know the luminosity of a star, how do we find the distance?
What are apparent magnitude and absolute magnitude? How do they relate to apparent brightness and luminosity?
What is meant by spectral type? What spectral type is the hottest? Which is the coolest?
What is meant by luminosity class?
What are the three basic types of binary stars?
1)Explain what happens when a observer is moving away from the source ? Support urz answer with diagram and calculations .2)Differentiate between the Radio waves and Mirowaves .
3) How does the Doppler Effect prove that the universe is expanding ?
4)How Doppler's effect affect on Light ?
Chapter 18 Solutions
Cosmic Perspective & Mod Mstgastro/et Vp Ac, 8/e
Ch. 18 - Prob. 1VSCCh. 18 - Prob. 2VSCCh. 18 - Prob. 3VSCCh. 18 - Prob. 4VSCCh. 18 - Prob. 5VSCCh. 18 - Prob. 1EAPCh. 18 - Prob. 2EAPCh. 18 - Prob. 3EAPCh. 18 - Prob. 4EAPCh. 18 - Prob. 5EAP
Ch. 18 - Prob. 6EAPCh. 18 - Prob. 7EAPCh. 18 - Prob. 8EAPCh. 18 - Prob. 9EAPCh. 18 - 10. In what sense is a black hole like a hole in...Ch. 18 - Il. What do we mean by the singularity of a black...Ch. 18 - Prob. 12EAPCh. 18 - Prob. 13EAPCh. 18 - Prob. 14EAPCh. 18 - Prob. 15EAPCh. 18 - Prob. 16EAPCh. 18 - Prob. 17EAPCh. 18 - Prob. 18EAPCh. 18 - Decide whether tile statement makes sense (or is...Ch. 18 - Prob. 20EAPCh. 18 - Decide whether tile statement makes sense (or is...Ch. 18 - Prob. 22EAPCh. 18 - Prob. 23EAPCh. 18 - Decide whether tile statement makes sense (or is...Ch. 18 - Decide whether tile statement makes sense (or is...Ch. 18 - Prob. 26EAPCh. 18 - Choose the best answer lo each of the following....Ch. 18 - Prob. 28EAPCh. 18 - Choose the best answer lo each of the following....Ch. 18 - Prob. 30EAPCh. 18 - Prob. 31EAPCh. 18 - Prob. 32EAPCh. 18 - Prob. 33EAPCh. 18 - Prob. 34EAPCh. 18 - Prob. 35EAPCh. 18 - Prob. 36EAPCh. 18 - Prob. 37EAPCh. 18 - Prob. 38EAPCh. 18 - Prob. 39EAPCh. 18 - Prob. 40EAPCh. 18 - Prob. 41EAPCh. 18 - Prob. 42EAPCh. 18 - Prob. 43EAPCh. 18 - Prob. 44EAPCh. 18 - Prob. 45EAPCh. 18 - Prob. 46EAPCh. 18 - Prob. 47EAPCh. 18 - Prob. 48EAPCh. 18 - Prob. 49EAPCh. 18 - Prob. 50EAPCh. 18 - Prob. 51EAPCh. 18 - Prob. 52EAPCh. 18 - Prob. 53EAPCh. 18 - Prob. 54EAPCh. 18 - Prob. 55EAPCh. 18 - Prob. 56EAPCh. 18 - Prob. 57EAPCh. 18 - Prob. 58EAPCh. 18 - Prob. 59EAP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Part 1 Copy and answer the ff. questions in continuation of your activity 4 on your booklet 3. 1. Why is Big Bang the most reliable theory on the formation of the universe? Give its evidences and explain them briefly on how you understood them. 2. What is fundamental or elementary particles? Where did they come from? 3. Why did atoms not yet formed during the early times in the big bang timeline? How did the subatomic particles formed? What composed them? 3. Are you convince that their are much basic part than the subatomic particles? Defend your answers. 4. What are stars? What make them up? Why is that the smaller stars live longer than the massive and giant stars? 5. What is nuclear fusion? Where it happens? What is its role in the life of stars? What it does with gravity? 6. If giants stars already expended its fuel and were all converted to Iron, SUPERNOVA happens, how this event occured? 7. What is nucleosynthesis? What are the 3 types of nucleosynthesis and what are the…arrow_forwardWhy are so many astronomical objects in the universe flat today? (Like the solar system, Saturn's ring, black hole accretion discs) Let's focus on our galaxy. Originally, the galaxy was a huge spherical cloud of gas and dust, much larger than it is today, and rotating much more slowly. Explain using gravity and the conservation of angular momentum, why the galaxy today is a flat disc that rotates faster.arrow_forwardThe first picture is some background information need help answering the first question about the escape velocity from the andromeda Galaxyarrow_forward
- 1) We believe that the big bang occurred 13.8 billion years ago. Give 3 reasons why scientists believe the universe is this old.arrow_forwardWhat is “dark energy”? What is “dark matter”? Why do some scientists think it is everywhere, while Houston thinks it is a lazy crock of….?arrow_forwardThere is still some uncertainty in the Hubble constant. (a) Current estimates range from about 19.9 km/s per million light-years to 23 km/s per million light-years. Assume that the Hubble constant has been constant since the Big Bang. What is the possible range in the ages of the universe? Use the equation in the text, T0=1H , and make sure you use consistent units. (b) Twenty years ago, estimates for the Hubble constant ranged from 50 to 100 km/s per Mps. What are the possible ages for the universe from those values? Can you rule out some of these possibilities on the basis of other evidence?arrow_forward
- The hydrogen Balmer line H? has a wavelength of 486.1 nm. It is shifted to 536.0 nm in a quasar's spectrum. What is the redshift of this quasar? (Hint: What is Δ??)arrow_forwardNeed homework help An object is measured to be at a distance of 20 Megaparsecs away from Earth. Using a currently accepted value of the Hubble constant, calculate its expected velocity away from Earth due to cosmic expansion.arrow_forward1. A distant galaxy has an apparent magnitude of 10 and is 4,000 kpc away. What is its absolute magnitude? (Round your answer to at least one decimal place.) The difference in absolute magnitude between two objects viewed from the same distance is related to their fluxes by the flux-magnitude relation. FA/FB= 2.51(MB − MA) 2. How does the absolute magnitude of this galaxy compare to the Milky Way (M = −21)?arrow_forward
- Define Unification, and why scientists are striving for the unification of all forces? ilac dacariba in sandardmodal and a ha.arrow_forward) what are some fundamental properties of late type galaxies that our theories of galaxy formation must reproduce? 2.) what are some fundamental properties of early type galaxies that our theories of galaxy formation must reproduce?arrow_forward1. What is formed when there is a fusion of two deuterium nuclei in big bang nucleosynthesis? 2. What are the conditions in the universe so that a nuclear fusion could occur? 3. What is formed when there is fusion of deuterium and tritium? 4. What was formed as the universe expanded and cooled down?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxHorizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage LearningStars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
General Relativity: The Curvature of Spacetime; Author: Professor Dave Explains;https://www.youtube.com/watch?v=R7V3koyL7Mc;License: Standard YouTube License, CC-BY