6533b82dfe1ef96bd12913a7
RESEARCH PRODUCT
Microlensing of Quasar UV Iron Emission
E. GuerrasE. MediavillaJ. Jimenez-vicenteC. S. KochanekJ. A. Mu��ozE. FalcoV. MottaK. Rojassubject
Cosmology and Nongalactic Astrophysics (astro-ph.CO)Astrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
We measure the differential microlensing of the UV Fe II and Fe III emission line blends between 14 quasar image pairs in 13 gravitational lenses. We find that the UV iron emission is strongly microlensed in 4 cases with amplitudes comparable to that of the continuum. Statistically modeling the magnifications we infer a typical size of r ~ 4*sqrt(M/Msun) light-days for the Fe line emitting regions which is comparable to the size of the region generating the UV continuum (3 ~ 7 light-days). This may indicate that a significant part of the UV Fe II and Fe III emission originates in the quasar accretion disk.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-09-10 |