User:Marshallsumter/Radiation astronomy/Comets/Quiz

Cometary radiation astronomy is a lecture studying the astronomical objects referred to as comets both as radiation and with radiation astronomy.

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Quiz
{Yes or No, A comet is a small solar system body that has a solid icy nucleus. + Yes - No
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{Which of the following is not a radiation phenomenon associated with a comet? - airglow - elongated dust particles - high albedo - olivine - Rayleighs + coronal mass ejection
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{True or False, An hypothesized Oort cloud or protoplanetary disc has been observed around other stars. + TRUE - FALSE
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{Which of the following are radiation astronomy phenomena associated with comets? - low albedo - relatively featureless + cyanogen detected - neutron emission + rotationally asymmetric + meteor emission + changes in its tail
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{Yes or No, When near the Sun a comet can also have an extremely tenuous atmosphere called a coma which can grow into a large and bright tail. + Yes - No
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{Observations of comets have benefited greatly from what phenomenon of cyan astronomy? - Cherenkov radiation - the electric blue glow of lightning - gas-expansion velocity decreases with increasing heliocentric distance - methane possesses prominent absorption bands in the visible - adaptive optics + the light of the neutral CN-radical
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{True or False, Comet West of 1976 is now settled into an orbit around Mars. - TRUE + FALSE
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{Complete the text: Sun-grazing { comets (i) } almost never re-emerge, but their { sublimative (i) } destruction near the { sun (i) } has only recently been observed directly, while { chromospheric (i) } impacts have not yet been seen, nor impact theory developed.
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{Yes or No, Nuclei are destroyed by ablation or explosion in the chromosphere, producing flare-like events with cometary abundance spectra. + Yes - No
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{On 19 May 1910, the Earth actually passed through the tail of what comet. { Halley's (i) }
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{Yes or No, The death of a comet at r ~ R⨀ has been seen directly only very recently using the SDO AIA XUV instrument. + Yes - No
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{Complete the text: The phenomenon of { flare (i) } induced sunquakes - waves in the { photosphere (i) } - discovered by Kosovichev and Zharkova (1998) and now widely studied (e.g. Kosovichev 2006) has only recently been { observed (i) } should also result from the { momentum (i) } impulse delivered by a cometary impact.
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{Yes or No, A typical comet nucleus has an albedo of 0.04. + Yes - No
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{True or False, Olivine is a silicate mineral that may be detected in cometary coma dust with green astronomy. + TRUE - FALSE
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{Yes or No, A cometary orbit about the Sun is a radiation astronomy phenomenon. + Yes - No
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Hypotheses

 * 1) Some comets originated with the apparent breakup of the former sky-god Ouranus.