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Stellar Evolution and Galaxies

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Title: Stellar Evolution and Galaxies


1
Stellar Evolution and Galaxies
Open Clusters, Globular Clusters, Binary Systems
?Population I, Population II, Blue Stragglers
Cepheid and RR Lyrae Variable Stars
Giants and Planetary Nebulae
Supergiants and Supernovae (Type Ia and Type II)
White Dwarfs, Neutron Stars, Pulsars, Black Holes
? Galaxy Types and Clusters
? Standard Candles
(Spectroscopy, HR Diagrams, light curves)
2
Star Systems
Open Clusters
Binary Star Systems
Globular Clusters
Planetary Systems
3
Blue Stragglers
4
Population II
Population I
Population I
Population II
Blue Stragglers
5
Population II
Population II
Population I
6
Cepheid Variable Stars
7
Cepheid and RR Lyrae Variable Stars
Period-Luminosity Relationship and The
Distance Modulus
Mv 0.75
8
Planetary Nebulae
9
Planetary Nebula and White Dwarfs


10
Supernovae Type II
Betelgeuse
Eta Carina
11
Supernovae Type Ia
Tychos SNR Remnant
SN 1994D
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Neutron Stars, Pulsars, Black Holes
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15
Population II
Blue Stragglers
Population II
Population I
16
Galaxy Types
Barred Spirals
Spirals
Lenticular
Interacting
Peculiar
Irregular
Elliptical
Cen A
Cen A
17
Galaxy Groups
AGNs
Clusters Superclusters
Seyferts
Coma Cluster
Stephans Quintet
Quasars
18
Stellar Spectra
19
H-R Diagrams
20
H-R Diagrams
21
Light Curves
Giants Supernova
Cepheids
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Multiwavelength Location
CAS A

26
The Distance Ladder
Variables
Spectroscopic Parallax
RR Lyraes
Cepheids
27
Cosmological Distances Candles
?Spectroscopic Parallax
The Distance Modulus M m - 5log10 (r)

10
?Cepheids and RR Lyrae Variables - Standard
Candles
The Distance Modulus M m - 5log10 (r)

10
28
Cosmological Distances Candles
?Type Ia Supernovae Standard Candle
Mv -19.5 
?Tully-Fisher Relationship Standard Candle
L is proportional to V4rot for Spiral Galaxies
?Hubbles Law NOT a Standard Candle
D Vr/Ho or Vr HoD or Ho Vr/D
29
Basic Equations and Relationships
The Distance Modulus M m - 5log10 (r)

10 Keplers 3rd Law (MA MB) a3

p2 v d a v 2p a
vP Fc mac ac v2 r?2 t
t
r 1 pc 206,265 au 3.26
ly 3.08 x 1016m 1 60 arcmin 60 1
60 arcsec 60? Doppler Effect Equation ? ?0
?r
C Inverse Square Law L
1/r2 Circumference, Area, Surface Area, and
Volume of a Sphere
REARRANGE ALL EQUATIONS FOR EACH VARIABLE
30
Resources
Astronomy Today 4/e Stars and Galaxies ISBN
0-13-093571-9 Amazon.com list price 34.50 (used)
Understanding the Universe ISBN
0-387-98295-7 Amazon.com list price 14.50 (used)
aavso.org
31
Web Resources
Students for the Exploration and Development of
Space http//www.seds.org/messier/galaxy.html
Astronomy Picture of the Day http//antwrp.gsfc.na
sa.gov/apod/astropix.html
Chandra X-Ray Center http//chandra.harvard.edu

Hubble Space Telescope
http//www.stsci.edu/top.html
The Wright Center http//www.tufts.edu/as/wright_c
enter
(Olympiad materials and workshop resources)
Sloan Digital Sky Survey http//skyserver.sdss.org
/en/
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