Monday, February 27, 2006
Blackbody radiation
Makeup quiz on reading.
More notes;
Blackbody radiation
Wien's Law and the Stefan-Boltzmann Law
Blackbody simulator
How to use Graphical Analysis 3
Assignment: Analyze the following:
69 Cygnus
41 Cygnus
Wolf 1346
Nova Aquilae 1999
Arcturus
Deneb
Sigma Serpentis
Tell:
The kind of spectra it is
Whether or not it is a blackbody
What elements are in it
If it is a blackbody:
it's peak radiation color
Temperature from Wien's law.
More notes;
Blackbody radiation
Wien's Law and the Stefan-Boltzmann Law
Blackbody simulator
How to use Graphical Analysis 3
Assignment: Analyze the following:
69 Cygnus
41 Cygnus
Wolf 1346
Nova Aquilae 1999
Arcturus
Deneb
Sigma Serpentis
Tell:
The kind of spectra it is
Whether or not it is a blackbody
What elements are in it
If it is a blackbody:
it's peak radiation color
Temperature from Wien's law.
Thursday, February 16, 2006
Brightnesses and Julian dates
Creating your final light curve for this project
Wednesday, February 15, 2006
Strike me lucky: no flash required as close call caught on camera - National
Tuesday, February 14, 2006
Nova search continues: converting brightnesses to magnitudes
Work on Nova Search: Converting brightness measurements to magnitudes
Thursday, February 09, 2006
continue nova search
Nova search continues. Your objective: generate one complete curve per person on your team.
Book Reports are due.
Book Reports are due.
Tuesday, February 07, 2006
Finish 40 mag problems; start nova search
Finish 40 magnitude problems
Define what a "Nova" is
Begin setting up the steps necessary to construct a light curve for a nova.
How to use NIH Image; load the macros, blink frames
Locating a Nova and starting a data table.
Define what a "Nova" is
Begin setting up the steps necessary to construct a light curve for a nova.
How to use NIH Image; load the macros, blink frames
Locating a Nova and starting a data table.
Friday, February 03, 2006
Light curves 1: Simulating the orbit of a binary star system
Simulating the orbital period of a binary star system
We will simulate the orbit of a binary star and then analyze the data in a classroom activity.
We introduce the concept of converting brightnesses to magnitudes with some rather thick notes that conclude with this equation:
m (unknown) = 2.5 log (brightness known/brightness unknown) + m(known)
Then we started an activity which used this equation to compute some unknown magntiudes in a picture.
We will simulate the orbit of a binary star and then analyze the data in a classroom activity.
We introduce the concept of converting brightnesses to magnitudes with some rather thick notes that conclude with this equation:
m (unknown) = 2.5 log (brightness known/brightness unknown) + m(known)
Then we started an activity which used this equation to compute some unknown magntiudes in a picture.
Wednesday, February 01, 2006
Brightness vs. Distance part 2
Brightness vs. Distance lab continues
Lab writeup followed by a worksheet of questions
Lab writeup followed by a worksheet of questions
