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Novel Measures for Rare Transients

Mahabal, Ashish (2013) Novel Measures for Rare Transients. In: Proceedings of the Third Hot-Wiring Transient Universe Workshop. Los Alamos National Laboratory , Los Alamos, NM, p. 127.

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Data volumes in astronomy have been growing rapidly. Various projects and methodologies are starting to deal with this. As we cross-match and correlate datasets, the number of parameters per object—in other words dimensions we need to deal with— is also growing. This leads to more interesting issues as many values are missing, and many parameters are non-homogeneously redundant. One needs to tease apart clusters in this space which represent different physical properties, and hence phenomena. We describe measures that help to do that for transients from the Catalina Realtime Transient Survey, and project it to near future surveys. The measures are based partly on domain knowledge and are incorporated into statistical and machine learning techniques. We also describe the discriminating role of appropriate followup observations in near-real-time classification of transients. In particular such novel measures will help us find relatively rare transients.

Item Type:Book Section
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Mahabal, Ashish0000-0003-2242-0244
Group:Zwicky Transient Facility
Record Number:CaltechAUTHORS:20190502-161809010
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95196
Deposited By: Tony Diaz
Deposited On:03 May 2019 14:48
Last Modified:03 Oct 2019 21:11

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