Constraining the geometry and kinematics of the quasar broad emission line region using gravitational microlensing. II. Comparing models with observations in the lensed quasar HE0435-1223

Abstract

The quadruply lensed quasar HE0435-1223 shows a clear microlensing effect that affects differently the blue and red wings of the H$\alpha$ line profile in its image D. To interpret these observations, and constrain the broad emission line region (BLR) properties, the effect of gravitational microlensing on quasar broad emission line profiles and their underlying continuum has been simulated considering representative BLR models and microlensing magnification maps. The amplification and distortion of the H$\alpha$ line profile, characterized by a set of four indices, can be reproduced by the simulations. Although the constraints on the BLR models set by the observed single-epoch microlensing signal are not very robust, we found that flattened geometries (Keplerian disk and equatorial wind) can more easily reproduce the observed line profile deformations than a biconical polar wind. With an additional independent constraint on the size of the continuum source, the Keplerian disk model of the H$\alpha$ BLR is slightly favored.

arXiv commentAccepted for publication in Astronomy and Astrophysics

References in corpus (19)

• The Quasar Accretion Disk Size -- Black Hole Mass Relation
• The Quasar Accretion Disk Size - Black Hole Mass Relation
• Sizes and Temperature Profiles of Quasar Accretion Disks from Chromatic Microlensing
• Microlensing of the broad line region in 17 lensed quasars
• Microlensing of the Broad Emission Line Region in the Quadruple Lens SDSS J1004+4112
• Multi-wavelength study of the gravitational lens system RXS J1131-1231: III. Long slit spectroscopy: micro-lensing probes the QSO structure
• Microlensing of Quasar Broad Emission Lines: Constraints on Broad Line Region Size
• The Average Size and Temperature Profile of Quasar Accretion Disks
• Dark Matter Fraction in Lens Galaxies: New Estimates from Microlensing
• A microlensing measurement of the size of the broad emission line region in the lensed QSO 2237+0305
• A Study of Gravitational Lens Chromaticity using Ground-based Narrow Band Photometry
• The Optical, Ultraviolet, and X-ray Structure of the Quasar HE 0435-1223
• Zooming into the broad line region of the gravitationally lensed quasar Q2237+0305 = the Einstein Cross: III. Determination of the size and structure of the CIV and CIII] emitting regions using microlensing
• Microlensing of the broad-line region in the quadruply imaged quasar HE0435-1223
• Probing the Broad Line Region and the Accretion Disk in the Lensed Quasars HE0435-1223, WFI2033-4723, and HE2149-2745 using Gravitational Microlensing
• Differential Microlensing Measurements of Quasar Broad Line Kinematics in Q2237+0305
• The different origins of high- and low-ionization broad emission lines revealed by gravitational microlensing in the Einstein cross
• Constraining the geometry and kinematics of the quasar broad emission line region using gravitational microlensing. I. Models and simulations
• Estimate of the Accretion Disk Size in the Gravitationally Lensed Quasar HE 0435-1223 using Microlensing Magnification Statistics

Cited by in corpus (8)

• Microlensing of the broad emission line region in the lensed quasar J1004+4112
• Spatially separated continuum sources revealed by microlensing in the gravitationally lensed broad absorption line quasar SDSSJ081830.46+060138.0
• Lessons from a blind study of simulated lenses: image reconstructions do not always reproduce true convergence
• PSJ2107-1611: a new wide-separation, quadruply imaged lensed quasar with flux ratio anomalies
• Towards modelling Ghostly DLAs
• Size and kinematics of the CIV broad emission line region from microlensing-induced line profile distortions in two gravitationally lensed quasars
• Amoeba: An AGN Model of Optical Emissions Beyond steady-state Accretion discs
• Geometry and kinematics of the broad emission line region in the lensed quasar Q2237+0305