2021
DOI: 10.48550/arxiv.2101.06048
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ASKAP observations of multiple rapid scintillators reveal a degrees-long plasma filament

Yuanming Wang,
Artem Tuntsov,
Tara Murphy
et al.

Abstract: We present the results from an Australian Square Kilometre Array Pathfinder search for radio variables on timescales of hours. We conducted an untargeted search over a 30 deg 2 field, with multiple 10-hour observations separated by days to months, at a central frequency of 945 MHz. We discovered six rapid scintillators from 15-minute model-subtracted images with sensitivity of ∼ 200 𝜇Jy/beam; two of them are extreme intra-hour variables with modulation indices up to ∼ 40% and timescales as short as tens of mi… Show more

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