Counting Stars: Developing Probabilistic Cataloguing for Crowded Fields
Event Start:
2019-01-14T15:00:00
Event End:
2019-01-14T16:00:00
Event Information:
The depth of next generation surveys poses a great data analysis challenge: these surveys will suffer from crowding, making their images difficult to deblend and catalogue. Sources in crowded fields are extremely covariant with their neighbours and blending makes even the number of sources ambiguous. Probabilistic cataloguing returns an ensemble of catalogues inferred from the image and can address these difficulties. We present the first optical probabilistic catalogue, cataloguing a crowded Sloan Digital Sky Survey r band image cutout from Messier 2.
Event Location:
Hennings 318
Speaker:
Stephen Portillo (U Washington)
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Event Start:
2019-01-14T15:00:00
Event End:
2019-01-14T16:00:00
Counting Stars: Developing Probabilistic Cataloguing for Crowded Fields
Event Information:
The depth of next generation surveys poses a great data analysis challenge: these surveys will suffer from crowding, making their images difficult to deblend and catalogue. Sources in crowded fields are extremely covariant with their neighbours and blending makes even the number of sources ambiguous. Probabilistic cataloguing returns an ensemble of catalogues inferred from the image and can address these difficulties. We present the first optical probabilistic catalogue, cataloguing a crowded Sloan Digital Sky Survey r band image cutout from Messier 2.
Event Location:
Hennings 318