2005/03/01 by Dong‐Wook Lee, Dong-Wook Lee, Jean Surdej +10
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Astrophysics (astro-ph) #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0503018
6 pages, 3 figures, Originally submitted to Nature, microlensing workshop at Hawaii, submitted to A&A, some changes especially in the Result vlaues according to new estimation for the transverse velocity
openalex publication_date 2005/03/01 · arxiv created 2005/03/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Recent OGLE (Optical Gravitational Lensing Experiment) and GLITP (Gravitational Lens International Time Project) monitoring data for QSO 2237+0305 (Huchra et al.) have been analyzed through a newly optimized N-body microlensing analysis method, the Local HAE Caustic Modeling (LOHCAM). This method simultaneously solves for the size of the source and N-body HAE (High Amplification Events) caustic shapes in the source plane and determines those sizes only as a function of the projected transverse velocity of the source. By applying this method to the light curves of the A & C lensed components in the Einstein Cross, these data are accurately reconstructed for the first time. From these modeling studies, we report several interesting results: the minimum number of microlenses required for possible caustic models, the possible evidence of an accretion disk with a central hole at the heart of the quasar, the size of the UV-continuum source, the masses of the microlenses being directly responsible for the observed HAEs, the estimated mass range of a super massive black hole (SMBH) in QSO 2237+0305 and finally some clues for the direction of the source motion in the sky.