Stars/Supernovas/Quiz

SN 2006gy and the core of its home galaxy, NGC 1260, viewed in X-ray light from the Chandra X-ray Observatory. The NGC 1260 galactic core is on the lower left and SN 2006gy is on the upper right. Credit: NASA/CXC/UC Berkeley/N.Smith et al.

Stars/Supernovas is a lecture about supernovas from a stellar perspective. This quiz is based on the lecture.

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Quiz

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

1 SN 1961F is in NGC?

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2 Which of the following are attributes that make Type Ia supernovae potentially valuable standard candles?

	occur in dusty regions
	present in the old stellar populations of all galaxies
	they have characteristic mottling
	they lack hydrogen lines in their optical spectra
	they lack helium lines in their optical spectra
	have incipient resolution
	during the first month after maximum light they do have a strong absorption feature produced by the red doublet (λ6347, λ6371 Å) of singly ionized silicon

3 Supernovae of Type Ia lack hydrogen lines and helium lines in their optical spectra; during the first month after maximum light they do have a strong absorption feature produced by the red doublet (λ6347, λ6371 Å) of singly ionized?

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4 Which of the following are associated with standard candles?

	Cepheid variables
	Type Ia supernovae
	the Sun
	stellar spectral type
	absolute magnitude
	Tully-Fisher relation

5 Yes or No, The most frequently preferred standard candle for distances to galaxies is the Type-II supernova.

	Yes
	No

6 Complete the text:

Match up the standard candle with a representative image:

Tully-Fisher relation - A

surface brightness fluctuations - B

absolute magnitude - C

globular clusters - D

active galactic nuclei - E

Type Ia supernova - F

classical Cepheid variable - G

novae - H

planetary nebula - I

File:Maximum magnitude-rate of decline for novae.gif .

File:B-, R-, I-, and H-band Tully-Fisher relations.gif .

File:Blackbody spectral density.gif .

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File:A further away schematic galaxy.gif .

File:1-agnsasanewst.jpg .

File:Planetary nebulae H-R.gif

File:Luminosity function for globular clusters.gif .

7 Which of the following are associated with Type-Ia supernovae as a standard candle?

	lack silicon lines
	lack hydrogen lines
	lack helium lines
	lack lithium lines
	expanding photosphere method
	almost as luminous as the brightest red supergiants

8 The brightest stellar explosion ever recorded is?

.

9 Which of the following are associated with novae as a standard candle?

	luminous
	old stellar population
	amount of Cherenkov light
	relatively dust-free environments
	MMRDs
	easy to recognize

10 Yes or No, SN 1961V is a type IV supernova.

	Yes
	No

Hypotheses

Main resource: Hypotheses

1. Distances are only as relative as the time it takes to travel them.

See also: Control groups, Proof of concept, and Proof of technology

See also

• Distances/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
• Universal coordinate converter

{{Physics resources}}