Star Simulation

- Stot distributed using Pareto distribution
1000_Stars.png

- Star evaluated in a box, so runs quicker
- Gaussian noise added to background in addition to Poisson noise

Background_of_Simulated_Image_vs_real.png

Fitting 2D Gaussian

- 2D Gaussian fit to both real stars and simulated stars, with separate sigma and the same sigma

Fitted_Simulated_Star.pngFitted_Real_Star.png

- Fitted to two stars for a sum of Gaussians, with the same and separate sigmas

Two_Fitted_Simulated_Stars.pngTwo_Fitted_Real_Stars.png

Two_Real_stars_with_separate_sigma.png

Data_with_same_sigma.PNG

Data_with_different_sigma.PNG

-- BekiChafer - 09 Jan 2018

Attachments Attachments
Topic attachments
I Attachment History Action Size Date Who Comment
PNGpng 1000_Stars.png r1 manage 4099.4 K 10 Jan 2018 - 01:43 RebekahChafer1 Simulated Image 1000 Stars
PNGpng Background_of_Simulated_Image_vs_real.png r1 manage 41.3 K 10 Jan 2018 - 01:46 RebekahChafer1  
PNGpng Data_with_different_sigma.PNG r1 manage 8.7 K 10 Jan 2018 - 02:04 RebekahChafer1  
PNGpng Data_with_same_sigma.PNG r1 manage 8.6 K 10 Jan 2018 - 02:04 RebekahChafer1  
PNGpng Fitted_Real_Star.png r1 manage 27.1 K 10 Jan 2018 - 01:56 RebekahChafer1 Real star fitted 2D Gaussian
PNGpng Fitted_Simulated_Star.png r1 manage 78.9 K 10 Jan 2018 - 01:55 RebekahChafer1 2D Gaussian fitted to simulated star
PNGpng Two_Fitted_Real_Stars.png r1 manage 62.2 K 10 Jan 2018 - 01:44 RebekahChafer1 Two real stars fitted with one sigma
PNGpng Two_Fitted_Simulated_Stars.png r1 manage 43.0 K 10 Jan 2018 - 01:59 RebekahChafer1  
PNGpng Two_Real_stars_with_separate_sigma.png r1 manage 78.5 K 10 Jan 2018 - 02:02 RebekahChafer1  
Edit | Attach | Watch | Print version | History: r1 | Backlinks | Raw View | Raw edit | More topic actions

Physics Webpages • RHUL Webpages • Campus Connect • Royal Holloway, University of London, Egham, Surrey TW20 0EX; Tel/Fax +44 (0)1784 434455/437520

Topic revision: r1 - 10 Jan 2018 - RebekahChafer1

 
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2025 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding RHUL Physics Department TWiki? Send feedback