Meeting 20161007
People present: Stewart Boogert, Glen Cowan, Aaron Andrews, Anisha Vadher, James Angthopo, Will Burrows
Anisha:
Aaron:
- Current task: Star field simulation.
- End goal of task is to generate image that is similar to what would be seen via the telescope.
- Currently have program capable of generating an image as an array of pixels and filling flux values calculated in relation to stars:
- Image size (no. of pixels in X and Y axis) and number of stars generated are variable.
- Stars generated with 2d gaussian profile - each pixel filled with sum of intensity contribution from each star.
- X and Y coordinates and peak value for each star is randomised, sigma values (in gaussian) set to 3 pixels for all stars - Eventually these will all come from simulation input data.
- Suggestions:
- Currently pixel value is calculated in relation to central position of each pixel - should be integral over pixel area.
- Pixel values represent photon counts, hence follow Poisson distribution. Therefore, generate pixel value by using integrated value as mean.
(Laura - not present)
Joint task:
- Decide on obsevation target:
- Stellar cluster.
- Needs to be visible at night for next few months.
- Also needs to be visible at reasonable time of evening/night (e.g. max. altitude between 7pm and 10pm)
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StewartBoogert - 07 Oct 2016