6533b7cefe1ef96bd125708a
RESEARCH PRODUCT
MICROLENSING OF QUASAR ULTRAVIOLET IRON EMISSION
J. Jiménez-vicenteChristopher S. KochanekJ. A. MuñozE. GuerrasE. GuerrasE. E. FalcoE. MediavillaE. MediavillaVeronica MottaK. Rojassubject
PhysicsAstrophysics::High Energy Astrophysical PhenomenaContinuum (design consultancy)Astronomy and AstrophysicsQuasarAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsmedicine.disease_causeGravitational microlensing01 natural sciencesGravitationAmplitudeAccretion discSpace and Planetary Science0103 physical sciencesmedicineEmission spectrum010306 general physics010303 astronomy & astrophysicsAstrophysics::Galaxy AstrophysicsUltravioletdescription
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 four cases with amplitudes comparable to that of the continuum. Statistically modeling the magnifications, we infer a typical size of r{sub s}∼4√(M/M{sub ⊙}) 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 |
|---|---|---|---|---|
| 2013-11-11 | The Astrophysical Journal |