Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ast 203 > Stellar Death > Flashcards

Stellar Death Flashcards

1
Q

(Outcome of stellar evolution) the star explodes, ejecting all of its matter into interstellar medium

A

Nothing/recycling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

(Outcome of stellar evolution) degenerate core stays and slowly cools and fade

A

White dwarf

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

(Outcome of stellar evolution) extremely compact core stays behind when star explodes - will eventually fade

A

Neutron star

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

(Outcome of stellar evolution) singularity/point of infinite curvature left behind when star goes supernova

A

Black hole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

(Supernovae) shows no hydrogen in their spectrum

A

Type I

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

(Supernovae) strong hydrogen in spectrum

A

Type II

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

(Supernovae) strong silicon

A

Type Ia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

(Supernovae) He rich

A

Type Ib

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

(Supernovae) He poor

A

Type Ic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Luminosity/magnitude vs. time

A

Lightcurve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Star begins to collapse once core (degenerate) is iron (Fe) and no white dwarf or planetary nebula is left

A

Core-collapse supernovae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Photons break apart heavy nuclei

A

Photodisintegration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Escaping neutrinos cool the star as it collapses

A

Proto-neutron star

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What powers supernovae

A

gravitational energy released from core collapse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Compressed neutrons will exert

A

Neutron degeneracy pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Rapidly spinning neutron stars that emit electromagnetic radiation

A

Pulsars

17
Q

Electromagnetic radiation when charges follow curved path (non-thermal)

A

Synchrotron radiation

18
Q

Spherically symmetric distribution of older stars

A

Halo

19
Q

Distribution of stars orbiting galactic center on thin plane (pulsar dense)

A

Disk

20
Q

Spherical distribution surrounding galactic center

A

Bulge

21
Q

Beamed emission from poles of neutron star

A

Pulsar

22
Q

Boundary beyond which light cannot escape black hole

A

Event horizon

ast 203 (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions