Strongly Polarized Optical Afterglows of Gamma-Ray Bursts | Zendy

Andrei Gruzinov | Zendy

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Strongly Polarized Optical Afterglows of Gamma-Ray Bursts

Author(s) -

Andrei Gruzinov

Publication year - 1999

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312323

Subject(s) - afterglow , gamma ray burst , physics , jet (fluid) , perpendicular , synchrotron radiation , phase (matter) , astrophysics , shock (circulatory) , radiation , synchrotron , optics , geometry , mathematics , quantum mechanics , thermodynamics , medicine

The optical afterglows of the gamma-ray bursts can be strongly polarized, in principle up to tens of percents, if (1) the afterglow is synchrotron radiation from an ultrarelativistic blast, (2) the blast is beamed during the afterglow phase, i.e., the shock propagates within a narrow jet, (3) we observe at the right time from the right viewing angle, and (4) magnetic fields parallel and perpendicular to the jet have different proper strengths.

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