This image shows the spectacular star-forming region known as the Flame Nebula. Credit: ESO/J. Emerson/VISTA. Acknowledgment: Cambridge Astronomical Survey Unit.

Star-forming region is a lecture on an aspect of stellar astronomy and regional astronomy. It is part of the radiation astronomy course on the principles of radiation astronomy.

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Quiz

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1 Yes or No, 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.

	Yes
	No

2 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

3 VISTA is the world’s largest survey

4 Chemistry phenomena associated with star-forming regions are

	silicate dust
	pressure
	hydrogen molecules
	polycyclic aromatic hydrocarbons (PAHs)
	oxygen
	sulfur

5 Complete the text:

Ultraviolet radiation and stellar from Eta Carinae and its siblings have shredded the to pieces, leaving a mess of tendrils and .

6 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 .

NGC 2024 .

HH 46/47 .

NGC 2264 .

R136

RCW 79 .

7 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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8 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

9 True or False, NGC 346 is a star-forming cloud.

	TRUE
	FALSE

10 Which of the following is not a star-forming region?

	Messier 17 sky region
	RCW 79
	NGC 2024
	Local Void
	NGC 2264
	NGC 6503

Hypotheses

1. It is possible to differentiate star-forming from star-destroying regions.

See also

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

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