Neutron radiation astronomy/Quiz

A closeup view of the Skylab space station photographed against an Earth background from the Skylab 3 Command/Service Module during station keeping maneuvers prior to docking. Credit: NASA.{{free media}}

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

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Quiz

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1 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

2 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

magnetized neutron star .

absorbed by neutral hydrogen .

Aquila X-1 .

Factor of 10 or greater luminosity increase .

thermal bremsstrahlung .

3 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

4 Yes or No, Below EeV energies ultra high energy neutrons have boosted lifetimes.

	Yes
	No

5 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

6 True or False, The surface of the Sun is a known source of neutrons.

	TRUE
	FALSE

7 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

8 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

9 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

10 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

11 Complete the text:

A neutron star is a type of that can result from the of a during a supernova event.

12 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

13 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

14 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

15 True or False, During large solar flares, the region near Mercury may be strongly illuminated with solar neutrons.

	TRUE
	FALSE

16 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

17 True or False, Neutron spectroscopy has detected hydrogen and thereby water on the Moon.

	TRUE
	FALSE

18 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

19 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

20 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

21 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

Galactic diffuse emission .

Crab nebula .

continuum .

accretion disk .

strongly magnetized neutron stars .

22 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

23 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

the index of refraction is often greater than 1 just below a resonance frequency .

iron, nickel, cobalt, and traces of iridium .

Sagittarius X-1 .

escape from a typical hard low-mass X-ray binary .

collisions with argon atoms .

X-rays are emitted as they slow down .

Henry Moseley using X-ray spectra .

24 Sputnik I was involved in which of the following astronomies?

	red astronomy
	stellar astronomy
	neutrino astronomy
	radio astronomy
	neutron astronomy
	X-ray astronomy

25 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

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Hypotheses

Main resource: Hypotheses

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

See also

• Aerometeor astronomy quiz
• Alpha-particle astronomy quiz
• Asteroid astronomy quiz
• Atomic astronomy quiz
• Baryon astronomy quiz
• Beta-particles astronomy/Quiz
• Cosmic-ray astronomy/Quiz
• Electron astronomy/Quiz
• Hadron astronomy quiz
• Meson astronomy quiz
• Minerals astronomy quiz
• Molecule astronomy quiz
• Muon astronomy/Quiz
• Neutrals astronomy quiz
• Neutrino astronomy/Quiz
• Neutron astronomy/Quiz
• Particle astronomy quiz
• Positron astronomy/Quiz
• Proton astronomy/Quiz
• Subatomic astronomy quiz
• Tauon astronomy quiz

External links

• International Astronomical Union
• NASA/IPAC Extragalactic Database - NED
• NASA's National Space Science Data Center
• The SAO/NASA Astrophysics Data System
• SDSS Quick Look tool: SkyServer
• SIMBAD Astronomical Database
• SIMBAD Web interface, Harvard alternate
• Spacecraft Query at NASA
• Universal coordinate converter

{{Radiation astronomy resources}}