Strongly polarized optical afterglows of gamma-ray bursts

Andrei Gruzinov

doi:10.1086/312323

Strongly polarized optical afterglows of gamma-ray bursts

Andrei Gruzinov

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English (US)
Pages (from-to)	L29-L31
Journal	Astrophysical Journal
Volume	525
Issue number	1 PART 2
DOIs	https://doi.org/10.1086/312323
State	Published - Nov 1 1999

Keywords

Gamma rays: bursts
Polarization
Shock waves

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/312323

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title = "Strongly polarized optical afterglows of gamma-ray bursts",

abstract = "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.",

keywords = "Gamma rays: bursts, Polarization, Shock waves",

author = "Andrei Gruzinov",

note = "Funding Information: I thank the anonymous referee for useful suggestions. I thank John Bahcall, Daniel Eisenstein, and David Hogg for useful discussions. I thank Bruce Draine and Pawan Kumar for useful information. This work was supported by NSF PHY 95-13835.",

year = "1999",

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doi = "10.1086/312323",

language = "English (US)",

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AU - Gruzinov, Andrei

N1 - Funding Information: I thank the anonymous referee for useful suggestions. I thank John Bahcall, Daniel Eisenstein, and David Hogg for useful discussions. I thank Bruce Draine and Pawan Kumar for useful information. This work was supported by NSF PHY 95-13835.

PY - 1999/11/1

Y1 - 1999/11/1

N2 - 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.

AB - 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.

KW - Gamma rays: bursts

KW - Polarization

KW - Shock waves

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JF - Astrophysical Journal

SN - 0004-637X

IS - 1 PART 2

ER -

Strongly polarized optical afterglows of gamma-ray bursts

Abstract

Keywords

ASJC Scopus subject areas

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