Regions/Astronomy/Quiz

Regional astronomy is a lecture and an article about the concept of regions associated with or as a part of astronomy.

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Quiz
{True or False, A star-forming region is a region of the celestial sphere within which predominately very young stellar objects (YSOs) are located and their formation is likely occurring. + TRUE - FALSE
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{VISTA is the world’s largest survey { telescope (i) }
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{Complete the text: Ultraviolet radiation and stellar { winds (i) } from Eta Carinae and its siblings have shredded the { cloud (i) } to pieces, leaving a mess of tendrils and { pillars (i) }.
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{Complete the text: Match up the image with the star-forming regions: Messier 17 - A RCW 79 - B Flame Nebula - C Cone Nebula - D NGC 1999 - E R136 - F HH 46/47 - G RCW 108 - H Carina Nebula - I NGC 3582 - J NGC 1097 - K Hubble-X - L NGC 6334 - M Arp 220 - N Sh 2-106 - O Rho Ophiuchi complex - P Ghost Head Nebula - Q NGC 2366 - R NGC 2363 - S Dragonfish nebula - T { P (i) }. { K (i) }. { Q (i) }. { D (i) }. { S (i) }. { J (i) }. { O (i) }. { G (i) }. { A (i) }. { N (i) }. { I (i) }. { F (i) }. { L (i) }. { C (i) }. { R (i) }. { E (i) } { H (i) }. { B (i) }. { T (i) }. { M (i) }.
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{True or False, NGC 346 is a star-forming cloud. - TRUE + FALSE
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{True or False, The Norikura Solar Observatory uses its own designations for solar active regions rather than those of other observatories or NOAA. - TRUE + FALSE
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{Which of the following is not a characteristic of solar active regions? - lithium - nucleosynthesis - coronal clouds - spot central meridian passage + a surface coverage of at least 95%.
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{The Sun as a star has what geographical property? - it's a primordial population III star - it passes once a year across the Lockman Hole - silicates have been discovered in its interior structure - optical reflectance studies have found evidence of magnesium - it has a surface temperature of ~700 K + it has a longitude and latitude grid system for locating active regions
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{Which of the following is not a star-forming region? - Messier 17 sky region - RCW 79 - NGC 2024 + Local Void - NGC 2264 - NGC 6503
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{Complete the text: Most { stellar flares|solar flares|flares (i) } and { coronal mass ejections|CMEs (i) } originate in magnetically { active regions (i) } around visible { sunspot|starspot (i) } groupings.
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{True or False, Coronal loops project into the coronal cloud, through the transition region and the chromosphere. + TRUE - FALSE
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{Which of the following is not a phenomenon usually associated with regions? - a connected part of a space - a tract of land + definite extent - Van Maanen's star - temporal change in radiation flux - weather
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{Which of the following is not a phenomenon associated with a flip-flop cycle? - active regions - hemisphere shifts - binary RS CVn stars - single stars - cyclical period + meridian passage
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{A Mt. Wilson spot number usually corresponds with which other region number? { Hale|McMath|Big Bear (i) }
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{True or False, Hale region numbers are greater for the same regions than NOAA numbers. + TRUE - FALSE
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{Which of the following active region phenomena have been observed on Proxima Centauri? + flares + temperatures as high as 27 MK + quiescent X-ray luminosity comparable to the Sun + a surface coverage of about 88% - spicules + likely prominence
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{Active regions are the result of enhanced what? { magnetic fields (i) }
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{Which of the following are associated with the stellar active region control group? + solar cycle - closed magnetic structures - solar wind + long-lived loop arcades + helmet streamers + the Sun
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{Which of the following is not associated with R136? - hundreds of brilliant blue stars + the Milky Way - warm, glowing clouds - the largest stellar nursery in our local galactic neighborhood - the 30 Doradus Nebula - a fantasy landscape of pillars, ridges, and valleys
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{True or False, "75% of the naked sunspots represented the return of large dominant f spots which had been part of large active regions during previous rotations." - TRUE + FALSE
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{Which geographical phenomena are associated with stellar active regions? + moving across the surface of the Sun or star - manifesting intense magnetic fields - a north geographic and magnetic pole + rotation + a prime meridian + average starspot latitudes + the solar or stellar equator
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{Complete the text: Match up the type of radiation with each of the star-forming possibilities below: Spitzer infrared - A VISTA infrared - B visual - C XMM-Newton X-rays - D ultraviolet - E ESO visual - F NGC 346 { D (i) }. NGC 2024 { B (i) }. HH 46/47 { F (i) }. NGC 2264 { C (i) }. R136 { E (i) } RCW 79 { A (i) }.
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{Coronal loops extend high into the corona, project through the chromosphere, and project through what above the photosphere? { transition region (i) }
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{True or False, Coronal loops populate both active and quiet regions of the solar surface. + TRUE - FALSE
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{Chemistry phenomena associated with star-forming regions are + silicate dust - pressure + hydrogen molecules + polycyclic aromatic hydrocarbons (PAHs) + oxygen + sulfur
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{Phenomena associated with nanoflares? + 1017 Joules + very high X-ray emission from happening every 20 s - flickerings - brightenings - mass eruptions + active regions
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{True or False, A spotless flare may occur in a plage region during its first rotation. + TRUE - FALSE
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{Which stars of the alpha Centauri system are known to have stellar active regions? + Proxima Centauri + Alpha Centauri B - Barnard's star - Alpha Centauri A + Rigel Kent + Alpha Centauri C - Alpha Centauri D
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{The star-forming phenomena related to RCW 79 are which of the following? + a bubble is 70-light years in diameter - the southern Milky Way + the radiation and winds of hot young stars + the hot bubble expands into the interstellar gas and dust around it + new stars along the edge of the large bubble
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