Real-time detection of an extreme scattering event: Constraints on Galactic plasma lenses-Reference-Cited by-同舟云学术

Real-time detection of an extreme scattering event: Constraints on Galactic plasma lenses

Published:2016-01-22 Issue:6271 Volume:351 Page:354-356
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Bannister Keith W.¹,Stevens Jamie¹,Tuntsov Artem V.²,Walker Mark A.²,Johnston Simon¹,Reynolds Cormac³,Bignall Hayley³

Affiliation:

1. Commonwealth Scientific and Industrial Research Organisation Astronomy and Space Science, PO Box 76, Epping, New South Wales 1710, Australia.

2. Manly Astrophysics, 3/22 Cliff Street, Manly, New South Wales 2095, Australia.

3. International Centre for Radio Astronomy Research–Curtin University, Perth, Western Australia 6102, Australia.

Abstract

Identifying live radio scattering events Radio emissions from distant quasars are occasionally modified for a few weeks by foreground interstellar plasma, in an extreme scattering event (ESE). Understanding this process has been difficult, because existing techniques do not allow events to be identified fast enough for follow-up before they finish. Bannister et al. developed a radio survey technique that allows ESEs to be identified in real time. After finding their first live ESE, they followed it up with additional radio and optical telescopes. The results constrain the size and density of the plasma and rule out one popular model of ESEs. Science , this issue p. 354

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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