Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
16th Edition
ISBN: 9781259663895
Author: KRAUSKOPF, Konrad B.
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 18, Problem 19MC
To determine
Why binary stars are valuable to the astronomers.
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Chapter 18 Solutions
Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
Ch. 18 - Prob. 1MCCh. 18 - Prob. 2MCCh. 18 - Prob. 3MCCh. 18 - Prob. 4MCCh. 18 - Prob. 5MCCh. 18 - Prob. 6MCCh. 18 - Prob. 7MCCh. 18 - Prob. 8MCCh. 18 - Prob. 9MCCh. 18 - Prob. 10MC
Ch. 18 - Prob. 11MCCh. 18 - Prob. 12MCCh. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - Prob. 15MCCh. 18 - Prob. 16MCCh. 18 - If we know both the luminosity and brightness of a...Ch. 18 - Prob. 18MCCh. 18 - Prob. 19MCCh. 18 - Prob. 20MCCh. 18 - Prob. 21MCCh. 18 - Prob. 22MCCh. 18 - Prob. 23MCCh. 18 - Prob. 24MCCh. 18 - Prob. 25MCCh. 18 - Prob. 26MCCh. 18 - Prob. 27MCCh. 18 - Prob. 28MCCh. 18 - Prob. 29MCCh. 18 - Prob. 30MCCh. 18 - Prob. 31MCCh. 18 - Prob. 32MCCh. 18 - Prob. 33MCCh. 18 - Prob. 34MCCh. 18 - Prob. 35MCCh. 18 - Prob. 36MCCh. 18 - Prob. 37MCCh. 18 - Prob. 38MCCh. 18 - Prob. 39MCCh. 18 - Black holes are remnants of a. stars with small...Ch. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - Prob. 3ECh. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - Prob. 6ECh. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - Prob. 13ECh. 18 - Prob. 14ECh. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 19ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - Prob. 23ECh. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Prob. 26ECh. 18 - Prob. 27ECh. 18 - Prob. 28ECh. 18 - Prob. 29ECh. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Prob. 33ECh. 18 - Prob. 34ECh. 18 - Prob. 35ECh. 18 - Prob. 36ECh. 18 - Prob. 37ECh. 18 - Prob. 38ECh. 18 - Prob. 39ECh. 18 - Prob. 40ECh. 18 - Prob. 41ECh. 18 - Prob. 42ECh. 18 - Prob. 43ECh. 18 - Prob. 44ECh. 18 - Prob. 45ECh. 18 - Prob. 46ECh. 18 - Prob. 47ECh. 18 - Prob. 48ECh. 18 - Prob. 49ECh. 18 - Prob. 50ECh. 18 - Prob. 51ECh. 18 - Prob. 52ECh. 18 - Prob. 53ECh. 18 - Prob. 54ECh. 18 - Prob. 55ECh. 18 - How large are black holes? Can any star evolve...Ch. 18 - Prob. 57ECh. 18 - Prob. 58E
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- Absolute visual magnitude is  a. the apparent magnitude of a star observed from Earth.  b. the luminosity of a star observed from a distance of 1,000 pc.  c. the apparent magnitude of a star observed from a distance of 10 pc.  d. the luminosity of a star observed from Earth.  e. c and d.arrow_forwardThe total mass of a binary system can be calculated from  a. the ratio of the angular separation from the center of mass of each of the stars.  b. the distance to the binary and its radial velocity.  c. the semi major axis and period of the orbit.  d. the radial velocities of the two stars.  e. the time required for the small star to eclipse the larger star.arrow_forwardThe period–luminosity relation is useful in determining  a. the mass of a star for which the distance is known.  b. the temperature of a star for which we know the luminosity.  c. the radius of the bulge of our galaxy.  d. the distance to globular clusters that contain Cepheid variables.  e. the mass of the Milky Way Galaxy.arrow_forward
- The gas and dust cocoon surrounding young stars  a. is blown away when the young stellar surface heats up and becomes more luminous.  b. remains surrounding the young star throughout its adult life.  c. eventually collapses onto the star, increasing its mass and luminosity.  d. evaporates gradually over the lifetime of the star.  e. expands as the star’s luminosity increases eventually reaching a distance far enough that it condenses to form comets.arrow_forwardIf a stellar remnant is greater than 3 solar masses, the resulting object will be a  a. brown dwarf.  b. red dwarf.  c. white dwarf.  d. neutron star.  e. black hole.arrow_forwardAn eclipsing binary will  a. be more luminous than a visual binary.  b. always be a spectroscopic binary.  c. give off most of its light in the infrared.  d. show a constant Doppler shift in its spectral lines.  e. show two stars with variable proper motion.arrow_forward
- A group of 10 to 100 stars that formed at the same time but are so widely scattered in space their mutual gravity cannot hold them together is called  a. a globular cluster.  b. an open cluster.  c. an association.  d. a spherical component  e. an accretion disk.arrow_forward4. Suppose we observe a binary star system in which one star is much more massive than the other and both are on the main sequence. We measure that the smaller star orbits the larger at a distance of 10¹3 m with a speed of 10 m/s. a. What is the mass of the larger star? b. Which star has a higher luminosity? c. Which has a larger radius? d. Which is hotter?arrow_forwardIf a stellar remnant is in between 0.4 and 1.4 solar masses, the resulting object will be a  a. brown dwarf.  b. red dwarf.  c. white dwarf.  d. neutron star.  e. black hole.arrow_forward
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