Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Question
Chapter 17, Problem 12CC
To determine
Whether L brown dwarf or T brown dwarf star is hotter.
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Students have asked these similar questions
Why are red dwarfs very dim.
What is the size of a typical white dwarf?
Group of answer choices
1.0 solar radii
0.5 solar radii
0.1 solar radii (roughly the size of Jupiter)
0.01 solar radii (roughly the size of Earth)
5 solar radii
Match the spectral type and luminosity class to theletters shown on the Hertzsprung-Russell diagram
1) A WD (White Dwarf)2) G V (Main Sequence) 3) M V (Main Sequence)4) M I (Supergiant)5) G III (Giant)
Chapter 17 Solutions
Universe
Ch. 17 - Prob. 1CCCh. 17 - Prob. 2CCCh. 17 - Prob. 3CCCh. 17 - Prob. 4CCCh. 17 - Prob. 5CCCh. 17 - Prob. 6CCCh. 17 - Prob. 7CCCh. 17 - Prob. 8CCCh. 17 - Prob. 9CCCh. 17 - Prob. 10CC
Ch. 17 - Prob. 11CCCh. 17 - Prob. 12CCCh. 17 - Prob. 13CCCh. 17 - Prob. 14CCCh. 17 - Prob. 15CCCh. 17 - Prob. 16CCCh. 17 - Prob. 17CCCh. 17 - Prob. 18CCCh. 17 - Prob. 19CCCh. 17 - Prob. 20CCCh. 17 - Prob. 21CCCh. 17 - Prob. 22CCCh. 17 - Prob. 23CCCh. 17 - Prob. 24CCCh. 17 - Prob. 1CLCCh. 17 - Prob. 2CLCCh. 17 - Prob. 3CLCCh. 17 - Prob. 4CLCCh. 17 - Prob. 1QCh. 17 - Prob. 2QCh. 17 - Prob. 3QCh. 17 - Prob. 4QCh. 17 - Prob. 5QCh. 17 - Prob. 6QCh. 17 - Prob. 7QCh. 17 - Prob. 8QCh. 17 - Prob. 9QCh. 17 - Prob. 10QCh. 17 - Prob. 11QCh. 17 - Prob. 12QCh. 17 - Prob. 13QCh. 17 - Prob. 14QCh. 17 - Prob. 15QCh. 17 - Prob. 16QCh. 17 - Prob. 17QCh. 17 - Prob. 18QCh. 17 - Prob. 19QCh. 17 - Prob. 20QCh. 17 - Prob. 21QCh. 17 - Prob. 22QCh. 17 - Prob. 23QCh. 17 - Prob. 24QCh. 17 - Prob. 25QCh. 17 - Prob. 26QCh. 17 - Prob. 27QCh. 17 - Prob. 28QCh. 17 - Prob. 29QCh. 17 - Prob. 30QCh. 17 - Prob. 31QCh. 17 - Prob. 32QCh. 17 - Prob. 33QCh. 17 - Prob. 34QCh. 17 - Prob. 35QCh. 17 - Prob. 36QCh. 17 - Prob. 37QCh. 17 - Prob. 38QCh. 17 - Prob. 39QCh. 17 - Prob. 40QCh. 17 - Prob. 41QCh. 17 - Prob. 42QCh. 17 - Prob. 43QCh. 17 - Prob. 44QCh. 17 - Prob. 45QCh. 17 - Prob. 46QCh. 17 - Prob. 47QCh. 17 - Prob. 48QCh. 17 - Prob. 49QCh. 17 - Prob. 50QCh. 17 - Prob. 51QCh. 17 - Prob. 52QCh. 17 - Prob. 53QCh. 17 - Prob. 54QCh. 17 - Prob. 55QCh. 17 - Prob. 56QCh. 17 - Prob. 57QCh. 17 - Prob. 58QCh. 17 - Prob. 59QCh. 17 - Prob. 60QCh. 17 - Prob. 61QCh. 17 - Prob. 62QCh. 17 - Prob. 63QCh. 17 - Prob. 64QCh. 17 - Prob. 65QCh. 17 - Prob. 66QCh. 17 - Prob. 67QCh. 17 - Prob. 68QCh. 17 - Prob. 69QCh. 17 - Prob. 70QCh. 17 - Prob. 71QCh. 17 - Prob. 72QCh. 17 - Prob. 73QCh. 17 - Prob. 74QCh. 17 - Prob. 75QCh. 17 - Prob. 76QCh. 17 - Prob. 77QCh. 17 - Prob. 78QCh. 17 - Prob. 79QCh. 17 - Prob. 80Q
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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
- Would you expect to find any white dwarfs in the Orion Nebula? (See The Birth of Stars and the Discovery of Planets outside the Solar System to remind yourself of its characteristics.) Why or why not?arrow_forwardWhat is the defining difference between a brown dwarf and a true star?arrow_forwardThe most recently discovered system close to Earth is a pair of brown dwarfs known as Luhman 16. It has a distance of 6.5 light-years. How many parsecs is this?arrow_forward
- What is the escape velocity from the white dwarf in Exercise 23.35? How much greater is it than the escape velocity from Earth?arrow_forwardWhat is the average density of the white dwarf in Exercise 23.35? How does it compare to the average density of Earth?arrow_forwardLuhman 16 and WISE 0720 are brown dwarfs, also known as failed stars, and are some of the new closest neighbors to Earth, but were only discovered in the last decade. Why do you think they took so long to be discovered?arrow_forward
- Why do you think astronomers have suggested three different spectral types (L, T, and Y) for the brown dwarfs instead of M? Why was one not enough?arrow_forwardLook elsewhere in this book for necessary data, and indicate what the final stage of evolution-white dwarf, neutron star, or black hole-will be for each of these kinds of stars. A. Spectral type-O main-sequence star B. Spectral type-B main-sequence star C. Spectral type-A main-sequence star D. Spectral type-G main-sequence star E. Spectral type-M main-sequence stararrow_forwardArrange the following stars in order of their evolution: A. A star with no nuclear reactions going on in the core, which is made primarily of carbon and oxygen. B. A star of uniform composition from center to surface; it contains hydrogen but has no nuclear reactions going on in the core. C. A star that is fusing hydrogen to form helium in its core. D. A star that is fusing helium to carbon in the core and hydrogen to helium in a shell around the core. E. A star that has no nuclear reactions going on in the core but is fusing hydrogen to form helium in a shell around the core.arrow_forward
- Why don't red dwarfs become giant stars?arrow_forwardWhat is the free-fall time of a 10 MSun main-sequence star? O 100 hours O 10 hours O 1 hour O 0.1 hoursarrow_forwardWhich star in the HR diagram below has the largest radius? 1060 M 10⁰ 10⁰ 10² 6 10 30 M 10 Solar Radi Lifetime 10 yrs 0.1 Solar Radus 30,000 B Centauri Spica 10M MAIN Bellatrix Lifetime B Deneb Rigal 6M Achemar SEQUENCE Lifetime WHITE SUPERGIANTS Canopus Vega 10 Solar Rad Procyon B 10,000 Srius Lifetime DWARFS Alar Arcturus Procyon Polaris 5 M Littine" 10 yrs S 1M Cet AFG 6,000 GIANTS Centauri A Pollux Centaur B Eridan Antares Aldebaran K Betelgeuse Barnard's Star 61 Cyani A 61 Cyani B Lacalle 9352 0.3M Gliese 725 A Gliese 725 8 Wolf 359 Proxima Centauri M Ross 128 DX Cancri 3,000arrow_forward
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