Gravitational microlensing of gamma-ray blazars
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Gravitational microlensing of gamma-ray blazars. / F. Torres, Diego; E. Romero, Gustavo; F. Eiroa, Ernesto; Wambsganss, Joachim; Pessah, Martin Elias.
In: Monthly Notices of the Royal Astronomical Society, Vol. 399, No. 2, 12.02.2003, p. 335-352.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Gravitational microlensing of gamma-ray blazars
AU - F. Torres, Diego
AU - E. Romero, Gustavo
AU - F. Eiroa, Ernesto
AU - Wambsganss, Joachim
AU - Pessah, Martin Elias
PY - 2003/2/12
Y1 - 2003/2/12
N2 - We present a detailed study of the effects of gravitational microlensing on compact and distant $\gamma$-ray blazars. These objects have $\gamma$-ray emitting regions which are small enough as to be affected by microlensing effects produced by stars lying in intermediate galaxies. We analyze the temporal evolution of the gamma-ray magnification for sources moving in a caustic pattern field, where the combined effects of thousands of stars are taken into account using a numerical technique. We propose that some of the unidentified $\gamma$-ray sources (particularly some of those lying at high galactic latitude whose gamma-ray statistical properties are very similar to detected $\gamma$-ray blazars) are indeed the result of gravitational lensing magnification of background undetected Active Galactic Nuclei (AGNs).
AB - We present a detailed study of the effects of gravitational microlensing on compact and distant $\gamma$-ray blazars. These objects have $\gamma$-ray emitting regions which are small enough as to be affected by microlensing effects produced by stars lying in intermediate galaxies. We analyze the temporal evolution of the gamma-ray magnification for sources moving in a caustic pattern field, where the combined effects of thousands of stars are taken into account using a numerical technique. We propose that some of the unidentified $\gamma$-ray sources (particularly some of those lying at high galactic latitude whose gamma-ray statistical properties are very similar to detected $\gamma$-ray blazars) are indeed the result of gravitational lensing magnification of background undetected Active Galactic Nuclei (AGNs).
KW - astro-ph
KW - gr-qc
U2 - 10.1046/j.1365-8711.2003.06219.x
DO - 10.1046/j.1365-8711.2003.06219.x
M3 - Journal article
VL - 399
SP - 335
EP - 352
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 2
ER -
ID: 34382970