Transcript Power Point of Slides of First lecture

Prof. Mel Ulmer
DEPT OF PHYSICS
&
ASTRONOMY
http://www.astro.edu/astro/faculty/ulmer/a01_fall2002.html
TA: David Lin
[email protected]
Office hours: Thursdays 4:00-5:00
For help with Cepheid variable lab,
Make an appointment
No discussion sections this week of Sep. 23
• Discussion sections: can come to more than one.
•Discussions sections (see syllabus also) all in Tech:
•Th., 2-3 (L170) 3-4 (LG66) U; Fri. 12-1 LG68, 1-150 M349 Lin
Sun, 8 light minutes
Mars, 12 light minutes
Jupiter, 40 lt min.
Pluto and Charon, 300 lt min
A star with planets forming; 50 lt year
Andromeda, a Galaxy like ours, 2 million lt yrs
100 billion
Stars;
100,000 lt yrs
across
You are
here!
Virgo cluster, 60 million lt yrs
1000 galaxies, 6 million lt yrs across
Coma Cluster,
360 million lt yrs, 1000 galaxies
6 million lt yrs across
A cluster 4 billion lt yrs
1000 galaxies, 6 million lt yrs
across
Hubble Deep Field, 10
billion lt yrs
Brick Wall, 15 billion lt yrs
BOOMERANG
Top Hat
DASI
Planck
COBE
Planck
Maybe we already know!
Data
Models
closed
flat
open
Maybe we already know, part I, extended
Need to
Assume
ordinary
matter,
WIMPS,
Dark energy
To make
curve
Blocks=
Data
Now we know, II
Maybe we already know, III
SN Ia
clusters
CMB
Mauna Kea, On Big Island
Keck, 10 meters
Person
Myall, 4
meters
The
End