On the probability of microlensing in gamma-ray burst afterglows

L. V. E. Koopmans; J. Wambsganss

doi:10.1046/j.1365-8711.2001.04279.x

On the probability of microlensing in gamma-ray burst afterglows

L. V. E. Koopmans, J. Wambsganss

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Abstract

The declining light curve of the optical afterglow of gamma-ray burst (GRB) GRB000301C showed rapid variability with one particularly bright feature at about t−t0 = 3.8 d. This event was interpreted as gravitational microlensing by Garnavich, Loeb & Stanek and subsequently used to derive constraints on the structure of the GRB optical afterglow. In this paper, we use these structural parameters to calculate the probability of such a microlensing event in a realistic scenario, where all compact objects in the universe are associated with observable galaxies.

Original language	English
Pages (from-to)	1317-1322
Number of pages	6
Journal	Monthly Notices of the Royal Astronomical Society
Volume	325
Issue number	4
DOIs	https://doi.org/10.1046/j.1365-8711.2001.04279.x
Publication status	Published - 1-Aug-2001
Externally published	Yes

Keywords

GRAVITATIONAL LENSING, DARK MATTER, GAMMA-RAYS: BURSTS, Astrophysics

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10.1046/j.1365-8711.2001.04279.x

On the probability of microlensing in gamma-ray burst afterglowsFinal publisher's version, 177 KBLicence: Unspecified

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Cite this

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abstract = "The declining light curve of the optical afterglow of gamma-ray burst (GRB) GRB000301C showed rapid variability with one particularly bright feature at about t−t0 = 3.8 d. This event was interpreted as gravitational microlensing by Garnavich, Loeb & Stanek and subsequently used to derive constraints on the structure of the GRB optical afterglow. In this paper, we use these structural parameters to calculate the probability of such a microlensing event in a realistic scenario, where all compact objects in the universe are associated with observable galaxies.",

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T1 - On the probability of microlensing in gamma-ray burst afterglows

AU - Koopmans, L. V. E.

AU - Wambsganss, J.

PY - 2001/8/1

Y1 - 2001/8/1

N2 - The declining light curve of the optical afterglow of gamma-ray burst (GRB) GRB000301C showed rapid variability with one particularly bright feature at about t−t0 = 3.8 d. This event was interpreted as gravitational microlensing by Garnavich, Loeb & Stanek and subsequently used to derive constraints on the structure of the GRB optical afterglow. In this paper, we use these structural parameters to calculate the probability of such a microlensing event in a realistic scenario, where all compact objects in the universe are associated with observable galaxies.

AB - The declining light curve of the optical afterglow of gamma-ray burst (GRB) GRB000301C showed rapid variability with one particularly bright feature at about t−t0 = 3.8 d. This event was interpreted as gravitational microlensing by Garnavich, Loeb & Stanek and subsequently used to derive constraints on the structure of the GRB optical afterglow. In this paper, we use these structural parameters to calculate the probability of such a microlensing event in a realistic scenario, where all compact objects in the universe are associated with observable galaxies.

KW - GRAVITATIONAL LENSING, DARK MATTER, GAMMA-RAYS: BURSTS, Astrophysics

U2 - 10.1046/j.1365-8711.2001.04279.x

DO - 10.1046/j.1365-8711.2001.04279.x

M3 - Article

VL - 325

SP - 1317

EP - 1322

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -