Stars/Galaxies/Evolution/Quiz

The composite image shows a classification of galaxies. Credit: Ville Koistinen.

Galaxy evolution is a lecture about a specific theory from astrophysics for the origin and accumulated changes of galaxies. It is an offering from the radiation astronomy department.

You are free to take this quiz based on galaxy evolution 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 {{stars resources}} template. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

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Enjoy learning by doing!

Quiz

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

1 Yes or No, For the elliptical galaxies, the classification En, where "n=1, 2, .... , 7 indicates the ellipticity of the image without the decimal point.

	Yes
	No

2 Complete the text:

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

Intracluster medium - A

Mayall's object - B

M82 PAHs - C

Milky Way bubbles - D

Local Hot Bubble - E

Stephan's Quintet - F

UGC 8335 - G

Arp 272 - H

File:Outflow from M82 galaxy.jpg .

File:Stephan's Quintet with annotation.jpg .

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File:A2199 Xray Optical2.jpg .

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3 Yes or No, The formation of exponential disks is an outstanding problem in cosmogony.

	Yes
	No

4 Complete the text:

Yarkovsky–O'Keefe–Radzievskii–Paddack (YORP) lead many objects to and then re-accrete.

5 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

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6 Yes or No, While fusion may be the primary mechanism by which first generation stars produce energy, repulsion between like nucleons may cause neutron emission from a collapsed core.

	Yes
	No

7 Which of the following may be true regarding the interacting galaxies of UGC 9618?

	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

8 True or False, In the evolution of elements much more material has gone into the even-numbered elements than into those which are odd.

	TRUE
	FALSE

9 Complete the text:

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

Einstein ring - A

stellar nebula - B

Andromeda galaxy - C

Triplet galaxies interacting - D

Hubble galaxies - E

Dark matter halo simulation - F

Fairall 9 (Seyfert galaxy in X-rays) - G

Tycho Brahe observatory, remotely controlled telescope, captured galaxy - H

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10 It is important to study the stellar populations of nearby galaxies in order to understand the processes of galaxy

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11

The galaxy image at the right has approximately which type of rotational symmetry??

	one-fold - ⊙
	two-fold - ⊖
	three-fold - ▲
	four-fold - ◈
	five-fold - ✪
	six-fold - ✱

12 True or False, With respect to the core of the Sun, the high-hydrogen, low-iron model was suddenly adopted without opposition.

	TRUE
	FALSE

13 True or False, Cosmogony is any scientific theory concerning the coming into existence, or origin, of the cosmos or universe, or about how what sentient beings perceive as "reality" came to be.

	TRUE
	FALSE

14 Nuclear fission and nuclear fusion may be connected by which of the following?

	means for concentrating actinide elements and for separating actinide elements from reactor poisons exist
	thermonuclear fusion reactions in stars are ignited by nuclear fission energy
	dark matter
	the feasibility of thermal neutron fission and fast neutron fission in planetary and protostellar matter may be calculated from nuclear reactor theory
	brown dwarfs

15 For a few special cases, rotational velocities for protostars have been obtained directly from observations of the outer optically

regions.

16 True or False, The overdense regions having turned into dark population III objects.

	TRUE
	FALSE

17 Complete the text:

In the case of B335, is not important in determining the balance in the outer regions, and this object is in fact undergoing collapse.

18 True or False, Cosmological redshift is seen due to the expansion of the universe, and sufficiently distant light sources (generally more than a few million light years away) show redshift corresponding to the rate of increase of their distance from Earth.

	TRUE
	FALSE

19 True or False, The temperature of the cores of stars may be determined by the balance between the gravitational attraction and the gas pressure.

	TRUE
	FALSE

20 True or False, In cosmogonic schemes involving cold dark matter, there is an equally obvious process that might inhibit galaxy formation in the incipient voids.

	TRUE
	FALSE

21 Which of the following are likely phenomena associated with population III stars

	not enough of them
	individual masses must either be less than 0.1 M⊙
	clouds
	in the range 103–106 Μ⊙
	too much background light
	too much material
	heavy elements

22 Complete the text:

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

interior models of the giant planets - A

high interest for cosmogony, geophysics and nuclear physics - B

hierarchical accumulation - C

clouds and globular clusters - D

cosmic helium abundance - E

deuterium fusion - F

a large deficiency of light elements - G

after galactic sized systems had collapsed - H

the motions of hydrogen

formation of luminous quasars .

stars with an initial mass less than the solar mass .

rotating liquid drops .

primordial is less than 26 per cent .

a solar mixture of elements dominated by hydrogen and helium gas .

around 13 Jupiter masses .

smaller rocky objects .

23 Which phenomenon are associated with cold dark matter?

	unseen mass
	a bubble in space
	range of masses of galaxies
	hot neutrinos
	Einstein-de-Sitter 'flat' universe
	the cosmological density parameter Ω

24 Complete the text:

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

E0 - A

E1 - B

E2 - C

E3 - D

E4 - E

E5 - F

E6 - G

E7 - H

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See also

• Astronomy/Quiz
• Green astronomy/Quiz
• Radiation astrochemistry/Quiz
• Radiation astrogeography/Quiz
• Radiation astrohistory/Quiz
• Radiation astronomy/Quiz
• Stars/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