Work

Microlensing of a Ring Model for Quasar Structure

Year: 2003

Type: article

Abstract: Microlensing observations of QSO 0957+561A and QSO 0957+561B have consistently shown evidence for structure in the quasar that has not been evident in available microlensing models, where the luminous source has been consistently modeled as a single large, round structure. We show that the microlensing features can easily be reproduced by a luminous quasar model motivated by observations: a luminous inner accretion disk edge and outer ring-shaped structures where the emission lines form. Such a model can explain all of the features known from 24 years of QSO 0957+561 microlensing observations.

Source: The Astronomical Journal

DOI: 10.1086/376472

Authors: Rudolph Schild, Viktor Vakulik

Institutions: Center for Astrophysics Harvard & Smithsonian, V. N. Karazin Kharkiv National University

Language: English

Topic: Astrophysical Phenomena and Observations

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W2034343345

FWCI: 1.535

Cites: 20

Cited by: 22

Related to: 10