Lecture Notes - Astronomical Data Analysis | AST 5765, Study notes of Astronomy

Material Type: Notes; Class: ADV ASTRONOMICAL DATA ANALYSIS; Subject: Astronomy; University: University of Central Florida; Term: Fall 2009;

Typology: Study notes

Pre 2010

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UCF Physics: AST 5765/4762: (Advanced) Astronomical Data Analysis
Fall 2009 Lecture Notes: 28. Project
1 Check In: 10:30 10:35, 5 min
Questions?
2 HW9: 10:35 10:50, 15 min
3 The Project: 10:50 11:05, 15 min
Project handout
Final assignment is a project paper due in finals week
Worth half the grade
Each project has you reduce and analyze some raw data, and write a paper
Do the analysis exactly as a homework:
Main file with commands and comments on analysis
Generic analysis routines written for general use
Create figures and tables as needed
Include any tests
We will be running them with a from proj_sol import *command
Make sure they work!
Project description says what to do, step by step
You may run into memory problems. You must find workarounds.
For example, there may be too much data for a median filter.
But, you can divide the data cube into quarters, do each, and sew the results together.
Graduate project weighs the dark matter in a galaxy
Undergraduate project is exoplanetary photometry
Project analyses are harder than homework
You must do all the work on the project yourself
You may discuss techniques but not quantitative results
You may not share code, look at each others’ screens, etc.
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UCF Physics: AST 5765/4762: (Advanced) Astronomical Data Analysis

Fall 2009 Lecture Notes: 28. Project

1 Check In: 10:30 — 10:35, 5 min

  • Questions?

2 HW9: 10:35 — 10:50, 15 min

3 The Project: 10:50 — 11:05, 15 min

  • Project handout
  • Final assignment is a project paper due in finals week
  • Worth half the grade
  • Each project has you reduce and analyze some raw data, and write a paper
  • Do the analysis exactly as a homework: - Main file with commands and comments on analysis - Generic analysis routines written for general use - Create figures and tables as needed - Include any tests - We will be running them with a from proj_sol import * command - Make sure they work! - Project description says what to do, step by step - You may run into memory problems. You must find workarounds. - For example, there may be too much data for a median filter. - But, you can divide the data cube into quarters, do each, and sew the results together.
  • Graduate project weighs the dark matter in a galaxy
  • Undergraduate project is exoplanetary photometry
  • Project analyses are harder than homework
  • You must do all the work on the project yourself
  • You may discuss techniques but not quantitative results
  • You may not share code, look at each others’ screens, etc.
  • Everything counts: the right answer, a clean analysis, - Right answer: 25% - Quality of analysis (coding style!): 15% - Presentation and explanation in paper: 10%
  • Paper should look like a research paper (e.g., ApJ ): - Title (usually generic, serious, not flashy) - Author, affiliation - Abstract - Introduction: look on ADS and/or Simbad for at least 1 fact - Data Description (table good) - Data Correction - Measurement (name after actual measurement) - Results - Discussion - Conclusions - References (at least 1 on topic, 1 for methods)
  • Can use Latex or own SW. There are latex templates online.
  • No longer than 5 journal pages, please!
  • Shorter is better but everything must be there. No gaps!
  • This is a big deal. It will take 40 hours. START NOW!

4 Dark Matter: 11:05 – 11:20, 15 min

  • 151628.jpg We measure rotation by Doppler shift
  • galslit.jpg, galrotspec.png Place slit on galaxy axis, get spectrum vs. r
  • 151629.jpg, 151582.jpg, 151630.jpg Rotation curve
  • Enclosed mass formula:

p

2

=

4 π

2 r

3

GM

M =

4 π

2 r

3

Gp

2

v =

2 πr

p