Term
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Definition
| the matter between two stars |
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Term
| What is Interstellar main constituents? |
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Definition
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Term
| Describe the Shapes of Gas Particles |
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Definition
| Particles are basically spherical |
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Term
| Describe the Shapes of Dust Particles |
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Definition
| Individual particles are elongated, larger scales are very complex |
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Term
| Gas is made up mostly with what particular molecules? |
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Definition
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Term
| What wavelengths can be used to observed interstellar matter? |
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Definition
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Term
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Definition
| general dimming of starlight by interstellar matter |
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Term
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Definition
| the dust preferentially absorbs short-wavelength radiation. Because of this, blue part of light from distant stars is obscured more than red. So in addition to being generally diminished in overall brightness, stars also appear redder than they really are. |
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Term
| Stars form in what kind of cloud? |
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Definition
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Term
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Definition
| Giant Molecule Cloud are giant clouds of interstellar gas and dust constituting mainly molecular hydrogen (H). |
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Term
| What is the Diameter of a GMC? |
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Definition
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Term
| What is the temperature range of GMC? |
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Definition
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Term
| What trigger star formations? |
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Definition
| when GMC collapses under its own gravity |
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Term
| So what is the collapsed of GMC is stimulated by? |
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Definition
| cloud cloud collisions, supernova blast wave,starlight(shockwaves)by type O & B stars |
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Term
| How long does the contraction of GMC usually takes? |
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Definition
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Term
| GMC contracts and forms dense core of gas & dust called______? |
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Definition
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Term
| As a protostars grows and got hotter it becomes a what? |
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Definition
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Term
| What is a Reflection Nebula? |
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Definition
| : bluish; mainly due to scattering of light by the dust particles; not necessarily around hot stars. |
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Term
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Definition
| reddish; mainly due to the gas surrounding the hot O and B type stars.) |
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Term
Depending on the _____, stars take different time to reach to main sequence.
sequence, |
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Definition
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Term
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Definition
| failed stars that never began burning because they are too small & don't generate enough heat |
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Term
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Definition
the separation between the two stars is larger than the largest radius that either star will ever reach
and hence the two stars will go through their entire life
cycles independently. |
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Term
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Definition
have shorter orbital periods, and the two stars are closer than the gravitational pull between them. There is then the possibility that one star may influence the other and completely new
evolutionary pathsare opened up for the two stars. |
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Term
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Definition
| is the teardrop region or volume around a star in binary system |
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Term
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Definition
| gravitational pull are exactly balancing each other |
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Term
| What are the four types of Binary Stars! |
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Definition
| detached, semi attached, contact and over contact |
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