Neutron radiation astronomy/Quiz

Neutron astronomy is a lecture as part of the astronomy course on the principles of radiation astronomy.

You are free to take this quiz based on neutron astronomy at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the template. This should give you adequate background to get 100 %.

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Quiz
{Ashen light is involved in which of the following? + earthshine - glow of the bright part of the lunar disk + light from different parts of Earth are mixed together + mimics the Earth as a single dot - neutron astronomy - X-ray astronomy
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{Complete the text: Match up the item letter with each of the possibilities below: X-ray burster - A gamma-ray burster - B X-ray pulsar - C SFXT - D soft X-ray transient - E diffuse X-ray background - F power law afterglow { B (i) } magnetized neutron star { C (i) }. absorbed by neutral hydrogen { F (i) }. Aquila X-1 { E (i) }. Factor of 10 or greater luminosity increase { A (i) }. thermal bremsstrahlung { D (i) }.
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{Which of the following are radiation astronomy phenomena associated with the gaseous-object Neptune? - Voyager 2 + blue rays + clouds - neutron emission - polar coronal holes + meteor emission - rotation
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{Yes or No, Below EeV energies ultra high energy neutrons have boosted lifetimes. - Yes + No
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{Which of the following are characteristic of solar proton astronomy? + the solar wind + polar coronal holes + protons originating from the photosphere - the electron neutrino + GOES 11 - neutrons
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{True or False, The surface of the Sun is a known source of neutrons. - TRUE + FALSE
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{Which of the following are radiation astronomy phenomena associated with the Sun? + ultraviolet emission + X-ray emission + gamma-ray emission + neutron emission + 7Be emission + meteor emission
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{True or False, A relativistic neutron may fly a megaparsec rather than undergo decay after about 14 minutes because its half-life may grow with energy. + TRUE - FALSE
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{Which of the following are green radiation astronomy phenomena associated with the Sun? + the color of the upper rim as seen from Earth + an excess brightness at or near the edge of the Sun + the iron XIV green line - neutron emission + polar coronal holes - meteor emission + changes in the line-blanketing
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{Which of the following are characteristic of solar green astronomy? + limb faculae + polar coronal holes + black body temperature of the photosphere - the electron neutrino + iron (Fe XIV) green line - neutrons
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{Complete the text: A neutron star is a type of { stellar remnant|remnant|compact star (i) } that can result from the { gravitational collapse|collapse (i) } of a { massive star|star (i) } during a { Type II, Type Ib or Type Ic|Type II|Type Ib|Type Ic (i) } supernova event.
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{Which of the following are radiation astronomy phenomena associated with the rocky-object Io? + surface regions reflecting or emitting violet or purple - an excess brightness at or near the edge + red regions that may be phosphorus - neutron emission - polar coronal holes + meteor emission - rotation
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{True or False, Neutrinos emanate from a neutron star because an atomic nucleus the size hypothesized for a neutron star is unstable and the neutrons decompose giving off neutrinos. - TRUE + FALSE
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{Which of the following are radiation astronomy phenomena associated with the apparent liquid-object Earth? + rain + snow + hail + neutron emission - polar coronal holes + meteor emission + rotation
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{True or False, During large solar flares, the region near Mercury may be strongly illuminated with solar neutrons. + TRUE - FALSE
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{Which of the following is not characteristic of a neutrino? - neutrinos are affected by the weak nuclear force + produced by a positron annihilating an electron - a decay product of a neutron - produced by the near surface fusion on the Sun - may have a mass - comes in mutable varieties
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{True or False, Neutron spectroscopy has detected hydrogen and thereby water on the Moon. + TRUE - FALSE
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{Which of the following are radiation astronomy phenomena associated with the plasma-object the Sun? + coronal clouds + H1- ions + X-rays + neutron emission + polar coronal holes + meteor emission - rotation
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{Which types of radiation astronomy directly observe the rocky-object surface of Venus? - meteor astronomy - cosmic-ray astronomy - neutron astronomy - proton astronomy - beta-ray astronomy - neutrino astronomy - gamma-ray astronomy - X-ray astronomy - ultraviolet astronomy - visual astronomy - infrared astronomy - submillimeter astronomy + radio astronomy + radar astronomy + microwave astronomy - superluminal astronomy
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{Which of the following radiation astronomy phenomena are associated with the rocky object Mercury? + apparent impact craters - an excess brightness at or near the edge - the iron XIV line + neutron emission - polar coronal holes + meteor emission - changes in the line-blanketing
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{Complete the text: Match up the item letter with each of the possibilities below: synchrotron X-rays - A power law - B inverse Compton - C thermal Bremsstrahlung - D black body - E cyclotron - F Supergiant Fast X-ray Transients { D (i) } Galactic diffuse emission { B (i) }. Crab nebula { A (i) }. continuum { C|D|E|A (i) }. accretion disk { E (i) }. strongly magnetized neutron stars { F (i) }.
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{Which of the following is not a characteristic of X-rays associated with neutron stars? - X-ray jets - X-ray binary + emission peaks indicative of neutron decay - X-ray burster - a low-mass X-ray binary
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{Complete the text: Match up the item letter with each of the possibilities below: Meteors - A Cosmic rays - B Neutrons - C Protons - D Electrons - E Positrons - F Gamma rays - G Superluminals - H X-ray jets { C (i) } the index of refraction is often greater than 1 just below a resonance frequency { H (i) }. iron, nickel, cobalt, and traces of iridium { A (i) }. Sagittarius X-1 { G (i) }. escape from a typical hard low-mass X-ray binary { F (i) }. collisions with argon atoms { B (i) }. X-rays are emitted as they slow down { E (i) }. Henry Moseley using X-ray spectra { D (i) }.
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{Sputnik I was involved in which of the following astronomies? - red astronomy - stellar astronomy - neutrino astronomy + radio astronomy - neutron astronomy - X-ray astronomy
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{Complete the text: Match up the item letter with each of the detectors or satellites below: Bonner Ball Neutron Detector - A Multi Mirror Telescope - B MAGIC telescope - C Explorer 11 - D HEAO 3 - E Helios - F Pioneer 10 - G Voyager 1 - H { C (i) } { H (i) }. { A (i) }. { G (i) }. { F (i) }. { B (i) }. { E (i) }. { D (i) }.
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Hypotheses

 * 1) More technical questions concerning neutrons and neutron detection safety may be good.