Radiation astronomy/Infrareds/Quiz

Combined observations from NASA's Spitzer Space Telescope and the newly completed Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have revealed the throes of stellar birth, as never before, in the well-studied object known as HH 46/47. Credit: NASA/JPL-Caltech/ALMA.

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

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Quiz

Point added for a correct answer:
Points for an incorrect answer:
Ignore the questions' coefficients:

	blue rays
	X-rays
	cyan rays
	infrared rays
	protons
	neutrinos

	Yes
	No

	a green emission line
	nucleosynthesis
	an orange line at 610.3 nm
	the Spite plateau
	lithium-drifted silicon detectors
	the Fraunhofer E line
	asymptotic supergiant branch
	an infrared line at 812.6 nm

	TRUE
	FALSE

	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

	TRUE
	FALSE

Astronomers place the submillimetre waveband between the

and

wavebands, typically taken to be between a few hundred micrometres and a millimetre.

	TRUE
	FALSE

Match up the radiation letter with each of the detector possibilities below:

Meteors - A

Cosmic rays - B

Neutrons - C

Protons - D

Electrons - E

Positrons - F

Neutrinos - G

Muons - H

Gamma rays - I

X-rays - J

Ultraviolet rays - K

Optical rays - L

Visual rays - M

Violet rays - N

Blue rays - O

Cyan rays - P

Green rays - Q

Yellow rays - R

Orange rays - S

Red rays - T

Infrared rays - U

Submillimeter rays - V

Radio rays - W

Superluminal rays - X

multialkali (Na-K-Sb-Cs) photocathode materials

.

F547M

.

511 keV gamma-ray peak

.

F675W

.

broad-band filter centered at 404 nm

.

a cloud chamber

.

ring-imaging Cherenkov

.

coherers

.

effective area is larger by 10⁴

.

F588N

.

pyroelectrics

.

a blemish about 8,000 km long

.

a metal-mesh achromatic half-wave plate

.

coated with lithium fluoride over aluminum

.

thallium bromide (TlBr) crystals

.

F606W

.

aluminum nitride

.

heavy water

.

18 micrometers FWHM at 490 nm

.

wide-gap II-VI semiconductor ZnO doped with Co²⁺ (Zn_1-xCo_xO)

.

a recoiling nucleus

high-purity germanium

.

magnetic deflection to separate out incoming ions

.

2.2-kilogauss magnet used to sweep out electrons

.

Match up the item letter with each of the possibilities below:

superluminals - A

radios - B

radars - C

microwaves - D

submillimeters - E

infrareds - F

reds - G

oranges - H

deuterium enrichment of cometary water

interstellar-comet connection

.

a macroscopic superstring

.

force of life

.

rings of Saturn

.

volcanic activity throughout Vesta

.

a silicon composite bolometer fed by a Winston cone

.

present-day fluctuations an order of magnitude larger

.

	TRUE
	FALSE

Match up the radiation type with the satellite:

meteor - A

cosmic ray - B

neutral atoms - C

neutron - D

proton - E

electron - F

positron - G

neutrino - H

gamma ray - I

X-ray - J

ultraviolet - K

optical - L

visual - M

violet - N

blue - O

cyan - P

green - Q

yellow - R

orange - S

red - T

infrared - U

submillimeter - V

microwave - W

radio - X

radar - Y

superluminal - Z

.

.

.

.

.

.

STS-134 International Space Station after undocking.jpg

.

.

.

.

.

Galileo Energetic Particles Detector.jpg

.

.

	TRUE
	FALSE

	cosmic-ray astronomy
	infrared astronomy
	neutrino astronomy
	visual astronomy
	ultraviolet astronomy
	radio astronomy

	TRUE
	FALSE

Methane possesses prominent

in the visible and near-infrared (IR) making

aquamarine or

in color.

	a stellar class G dwarf
	the hydrogen Balmer alpha line
	the photosphere of the Sun
	extrasolar planets
	lithium
	the CMB

	the pair of galaxies appear to be interacting rather than a mere galaxy double
	a lack of luminous sources at any wavelength in the interaction volume
	asymmetry is approximately centered on the interaction volume
	a common origin originally between them
	the large X-ray output surrounding primarily the more central portion of the edge-on galaxy suggests a very high temperature galactic coronal cloud
	the infrared portion of the composite image with ultraviolet strongly suggests that the edge-on galaxy is much cooler in general than the face-on galaxy
	orange and yellow astronomy reveal that the edge-on galaxy may be composed of older or cooler stars
	VV340A appears to be more than 33 % involved in the interaction

	fluorine emission lines in the green are relatively weak
	fluorine lines in the near infrared are usually much stronger than the green lines
	F I has lines in the green
	F II has lines in the green
	F III has at least one line in the green
	the Fraunhofer E line

	TRUE
	FALSE

	cryogenically-cooled
	85 cm diameter
	f/12
	lightweight boron
	3 - 180 µm wavelength range
	the Fraunhofer E line

Hypotheses

Questions about infrared astronomy can touch on any and all wavelengths.

External links

{{Radiation astronomy resources}}{{Principles of radiation astronomy}}

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