EBK LOOSE-LEAF VERSION OF UNIVERSE
11th Edition
ISBN: 9781319227975
Author: KAUFMANN
Publisher: VST
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Chapter 20, Problem 66Q
To determine
The reason that a supernova can shine for many years, even after it explodes.
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Why does a type II supernova explode? in two sentences.
(a)What type of supernova is most luminous in light?
(b) What kind of star results in such an explosion?
(c) What type of supernova is most luminous in neutrino emission?
(d) What kind of star results in such an explosion?
A distant Nebula is now 2.35 pc in radius and is expanding at 1100 km/s. Approximately when did the supernova occur?
Chapter 20 Solutions
EBK LOOSE-LEAF VERSION OF UNIVERSE
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- How do the two types of supernovae discussed in this chapter differ? What kind of star gives rise to each type?arrow_forwardHow is a nova different from a type Ia supernova? How does it differ from a type II supernova?arrow_forwardHow would the spectra of a type II supernova be different from a type Ia supernova? Hint: Consider the characteristics of the objects that are their source.arrow_forward
- A supernova remnant was observed in 2007 to be expanding at a velocity of 14,000 km/s and had a radius of 6.5 light-years. Assuming a constant expansion velocity, in what year did this supernova occur?arrow_forwardA supernova can eject material at a velocity of 10,000 km/s. How long would it take a supernova remnant to expand to a radius of 1 AU? How long would it take to expand to a radius of 1 light-years? Assume that the expansion velocity remains constant and use the relationship: expansiontime=distanceexpansionvelocity .arrow_forwardA supernova remnant was recently discovered and found to be approximately 150 years old. Provide possible reasons that this supernova explosion escaped detection.arrow_forward
- What observations from SN 1987A helped confirm theories about supernovae?arrow_forwardWould you be more likely to observe a type II supernova (the explosion of a massive star) in a globular cluster or in an open cluster? Why?arrow_forwardA supernova remnant is now 4.75 pc in radius and is expanding at 1,600 km/s. Approximately how many years ago did the supernova occur? (Note: 1 pc = 3.1 1013 km and 1 yr = 3.2 107 s.)arrow_forward
- A Type Ia Supernova is an example of a:arrow_forwardExplain what makes the planetary nebula glow and what makes the supernova remnant glow. Which of these two kinds of gas clouds continues to glow for a longer time and why?arrow_forwardExplain what happens during a supernova, what features it produces, and the process of nucleosynthesisarrow_forward
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