Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Question
Chapter 15, Problem 19QAP
To determine
The location of youngest stars in Milky Way.
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Students have asked these similar questions
Disk population stars have
I. circular orbits in the plane of the galaxy
II. randomly tipped, elliptical orbits
III. old stars with low metal content
IV. young stars with heavy metal content
a.
I and II
b.
I and III
c.
II and III
d.
II and IV
e.
I and IV
Stars have the greatest metal content in which region of the Milky Way Galaxy?
a.
in the galactic halo
b.
in the nuclear bulge
c.
in the disk
d.
in the core
e.
in the spherical component
The traditional theory of the formation of our galaxy CANNOT explain
a.
the existence of the disk of the galaxy.
b.
the fact that the oldest stars in the galaxy are not metal free.
c.
the spherical distribution of the globular clusters.
d.
the difference in metal abundance of the population I and II stars.
e.
the existence of the nuclear bulge.
Chapter 15 Solutions
Understanding Our Universe
Ch. 15.1 - Prob. 15.1CYUCh. 15.2 - Prob. 15.2CYUCh. 15.3 - Prob. 15.3CYUCh. 15.4 - Prob. 15.4CYUCh. 15 - Prob. 1QAPCh. 15 - Prob. 2QAPCh. 15 - Prob. 3QAPCh. 15 - Prob. 4QAPCh. 15 - Prob. 5QAPCh. 15 - Prob. 6QAP
Ch. 15 - Prob. 7QAPCh. 15 - Prob. 8QAPCh. 15 - Prob. 9QAPCh. 15 - Prob. 10QAPCh. 15 - Prob. 11QAPCh. 15 - Prob. 12QAPCh. 15 - Prob. 13QAPCh. 15 - Prob. 14QAPCh. 15 - Prob. 15QAPCh. 15 - Prob. 16QAPCh. 15 - Prob. 17QAPCh. 15 - Prob. 18QAPCh. 15 - Prob. 19QAPCh. 15 - Prob. 20QAPCh. 15 - Prob. 21QAPCh. 15 - Prob. 22QAPCh. 15 - Prob. 23QAPCh. 15 - Prob. 24QAPCh. 15 - Prob. 25QAPCh. 15 - Prob. 26QAPCh. 15 - Prob. 27QAPCh. 15 - Prob. 28QAPCh. 15 - Prob. 29QAPCh. 15 - Prob. 30QAPCh. 15 - Prob. 31QAPCh. 15 - Prob. 32QAPCh. 15 - Prob. 33QAPCh. 15 - Prob. 34QAPCh. 15 - Prob. 35QAPCh. 15 - Prob. 36QAPCh. 15 - Prob. 37QAPCh. 15 - Prob. 38QAPCh. 15 - Prob. 39QAPCh. 15 - Prob. 40QAPCh. 15 - Prob. 41QAPCh. 15 - Prob. 42QAPCh. 15 - Prob. 43QAPCh. 15 - Prob. 44QAPCh. 15 - Prob. 45QAP
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- The Sun is located in a. the center of the Milky Way Galaxy b. the bulge of the Milky Way Galaxy c. the halo of the Milky Way Galaxy d. the disk of the Milky Way Galaxyarrow_forwardWhat is the name for the spherical cloud of thinly scattered stars and globular clusters that contain only about 2 percent as many stars as the disk of the galaxy and has very little gas and dust? a. the core b. the nuclear bulge c. the spiral arms d. the halo e. none of thesearrow_forwardThe lower limit of the mass of the galaxy is a. 100 solar masses. b. 100,000 solar masses. c. 100 million solar masses. d. 100 billion solar masses. e. 100 trillion solar masses.arrow_forward
- Which of the following features of the Milky Way contains mostly population II stars and globular clusters? a. the disk component b. the spherical component c. the spiral arms d. Sgr A* e. none of the thesearrow_forwardIf you want to find a sizeable collection of Population Il stars in the Milky Way Galaxy, where would be a good place to look? A. near the Sun B. in a globular cluster high above the Galaxy's disk C. in the Orion Spur D.on the outer surface of giant molecular clouds E. in an open cluster, especially one with a lot of dust in and around itarrow_forwardThe galactic corona is believed to contain mostly a. O and B stars. b. G, K, and M stars. c. open clusters. d. globular clusters. e. dark matter.arrow_forward
- What triggers the nucleus of a galaxy into activity? a. a nova explosion b. a type I supernova explosion c. a hypernova explosion d. a type II supernova explosion e. none of the abovearrow_forwardOur galaxy is suspected to be surrounded by a galactic corona because the disk of the galaxy a. rotates faster than expected in its outer region. b. rotates more slowly than expected in its outer region. c. rotates faster than expected in its inner region. d. rotates more slowly than expected in its inner region. e. is much flatter than expectedarrow_forwardIn which portion of the spectrum is the core of the galaxy invisible? a. infrared b. visible c. gamma ray d. X ray e. radioarrow_forward
- The traditional theory states that our galaxy formed a. as a large spherical cloud of gas that was rotating very slowly. b. from a large cloud of material that broke off from a larger galaxy. c. from material that had been ejected in the violent explosion of a dying galaxy. d. as a result of mergers between several smaller groups of gas, dust, and stars. e. as two massive galaxies collided.arrow_forwardAccording to the unified model of active galactic nuclei, a ___________________ is observed if the accretion disk is tipped slightly and the broad line region emits broad spectral lines. a. supernova b. type 1 Seyfert c. type 2 Seyfert d. hypernova e. quasararrow_forwardThe theory that waves of compression move around the galaxy triggering star formation is called a. the flocculent theory. b. the spiral compression theory. c. the density wave theory. d. the differential rotation theory. e. none of the above.arrow_forward
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