https://i × Printabix astro-q/X a MyCu 1/courses/2017FA-ASTR-110-2263/astro-qs8.
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https://i × Printabix astro-q/X a MyCu 1/courses/2017FA-ASTR-110-2263/astro-qs8.pc lanolrhe X Tailor B × com/bbcswebdav/pid-5927099-dt-content-rid-23065679_1 15. According to the diagram, what happens to electrons and other particles that are pulled on by a neutron star's magnetic field? a. They produce radiation (light) that forms a beam from each pole of the neutron star. b. They are pulled onto the neutron star's surface and make the neutron star heavier c. They are unaffected by the magnetic field. d. They cause the magnetic field to lose strength gradually 16. In what way is the spinning neutron star like a lighthouse? a. It illuminates all places around itself. b. A beam of light sweeps around the neutron star 17. What makes the spinning neutron star pulse on and off (earning it the name "pulsar")? a. b. c. Magnetism of the object flips upside dowr periodically (reverses polarity). The object wobbles similar to the Earth's cycle of precession. A rotating beam of light sweeps past us for a moment (so we see a pulse). 18. The Crab Nebula pulsar spins and pulses at a pretty average rate for a pulsar. So, how often do pulsars spin and pulse? Many times per second b. Once every few minutesc. Every few years a. Continue with Section 12-7 in Chapter 12: Magnetars. 19. How does their magnetism compare to that of normal neutron stars? a. Much stronger b. Much weaker c. No difference 20. What causes strong bursts of x-rays and gamma rays to be emitted from the magnetar? a. There is interference by the gravity of a large nearby black hole. b. Material is flowing from a giant star onto the magnetar c. The surface is buckling, rupturing, or crupting due to extreme magnetism.Explanation / Answer
15)(a)
We know that a moving charge produces radiation, the same happens in particle accelerators also.
16)(a)
17)(a)
The oscillting magnetic field, electric field and the motion of light are perpendicular to each other.
18)(c)Every few years
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