A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments
We define a framework for determining constraints on the detection rate of fast transient events from a population of underlying sources, with a view to incorporate beam shape, frequency effects, scattering effects, and detection efficiency into the metric. We then demonstrate a method for combining...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing, Inc.
2013
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/4642 |
| _version_ | 1848744573534208000 |
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| author | Trott, Cathryn Tingay, Steven Wayth, Randall Thompson, D. Deller, A. Brisken, W. Wagstaff, K. Majid, W. Burke-Spolaor, S. Macquart, Jean-Pierre Palaniswamy, D. |
| author_facet | Trott, Cathryn Tingay, Steven Wayth, Randall Thompson, D. Deller, A. Brisken, W. Wagstaff, K. Majid, W. Burke-Spolaor, S. Macquart, Jean-Pierre Palaniswamy, D. |
| author_sort | Trott, Cathryn |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We define a framework for determining constraints on the detection rate of fast transient events from a population of underlying sources, with a view to incorporate beam shape, frequency effects, scattering effects, and detection efficiency into the metric. We then demonstrate a method for combining independent data sets into a single event rate constraint diagram, using a probabilistic approach to the limits on parameter space. We apply this new framework to present the latest results from the V-FASTR experiment, a commensal fast transients search using the Very Long Baseline Array (VLBA). In the 20 cm band, V-FASTR now has the ability to probe the regions of parameter space of importance for the observed Lorimer and Keane fast radio transient candidates by combining the information from observations with differing bandwidths, and properly accounting for the source dispersion measure, VLBA antenna beam shape, experiment time sampling, and stochastic nature of events. We then apply the framework to combine the results of the V-FASTR and Allen Telescope Array Fly's Eye experiments, demonstrating their complementarity. Expectations for fast transients experiments for the SKA Phase I dish array are then computed, and the impact of large differential bandwidths is discussed. |
| first_indexed | 2025-11-14T06:03:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-4642 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:03:37Z |
| publishDate | 2013 |
| publisher | Institute of Physics Publishing, Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-46422017-09-13T14:39:15Z A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments Trott, Cathryn Tingay, Steven Wayth, Randall Thompson, D. Deller, A. Brisken, W. Wagstaff, K. Majid, W. Burke-Spolaor, S. Macquart, Jean-Pierre Palaniswamy, D. methods: observational radio continuum surveys methods: data analysis instrumentation: detectors We define a framework for determining constraints on the detection rate of fast transient events from a population of underlying sources, with a view to incorporate beam shape, frequency effects, scattering effects, and detection efficiency into the metric. We then demonstrate a method for combining independent data sets into a single event rate constraint diagram, using a probabilistic approach to the limits on parameter space. We apply this new framework to present the latest results from the V-FASTR experiment, a commensal fast transients search using the Very Long Baseline Array (VLBA). In the 20 cm band, V-FASTR now has the ability to probe the regions of parameter space of importance for the observed Lorimer and Keane fast radio transient candidates by combining the information from observations with differing bandwidths, and properly accounting for the source dispersion measure, VLBA antenna beam shape, experiment time sampling, and stochastic nature of events. We then apply the framework to combine the results of the V-FASTR and Allen Telescope Array Fly's Eye experiments, demonstrating their complementarity. Expectations for fast transients experiments for the SKA Phase I dish array are then computed, and the impact of large differential bandwidths is discussed. 2013 Journal Article http://hdl.handle.net/20.500.11937/4642 10.1088/0004-637X/767/1/4 Institute of Physics Publishing, Inc. fulltext |
| spellingShingle | methods: observational radio continuum surveys methods: data analysis instrumentation: detectors Trott, Cathryn Tingay, Steven Wayth, Randall Thompson, D. Deller, A. Brisken, W. Wagstaff, K. Majid, W. Burke-Spolaor, S. Macquart, Jean-Pierre Palaniswamy, D. A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments |
| title | A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments |
| title_full | A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments |
| title_fullStr | A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments |
| title_full_unstemmed | A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments |
| title_short | A framework for interpreting fast radio transients search experiments: Application to the V-FASTR experiments |
| title_sort | framework for interpreting fast radio transients search experiments: application to the v-fastr experiments |
| topic | methods: observational radio continuum surveys methods: data analysis instrumentation: detectors |
| url | http://hdl.handle.net/20.500.11937/4642 |