Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Time-varying Polarized Gamma-Rays from GRB 160821A: Evidence for Ordered Magnetic Fields
Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India..
Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India..
Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India..
Stanford Univ, Dept Phys, 382 Via Pueblo Mall, Stanford, CA 94305 USA.;Kavli Inst Astrophys & Cosmol, 452 Lomita Mall, Stanford, CA 9430 USA..
Show others and affiliations
2019 (English)In: Astrophysical Journal Letters, ISSN 2041-8205, E-ISSN 2041-8213, Vol. 882, no 1, article id L10Article in journal (Refereed) Published
Abstract [en]

GRB 160821A is the third most energetic gamma-ray burst observed by the Fermi gamma-ray space telescope. Based on the observations made by the Cadmium Zinc Telluride Imager on board AstroSat, here we report the most conclusive evidence to date of (i) high linear polarization (66(27)(+26)%; 5.3 sigma detection), and (ii) variation of polarization angle with time, occurring twice during the rise and decay phase of the burst at 3.5 sigma and 3.1 sigma detections, respectively. All confidence levels are reported for two parameters of interest. These observations strongly suggest synchrotron radiation produced in magnetic field lines that are highly ordered on angular scales of 1/Gamma, where Gamma is the Lorentz factor of the outflow.

Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 2019. Vol. 882, no 1, article id L10
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-260183DOI: 10.3847/2041-8213/ab3a48ISI: 000484250100005Scopus ID: 2-s2.0-85072612704OAI: oai:DiVA.org:kth-260183DiVA, id: diva2:1355933
Note

QC 20190930

Available from: 2019-09-30 Created: 2019-09-30 Last updated: 2019-09-30Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Ryde, Felix

Search in DiVA

By author/editor
Ryde, Felix
By organisation
Particle and Astroparticle Physics
In the same journal
Astrophysical Journal Letters
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 4 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf