GRAVITATIONAL MICROLENSING AND EXTENDED SOURCE MODELS
Journal Title: Odessa Astronomical Publications - Year 2014, Vol 27, Issue 1
Abstract
We perform statistical simulations of light curves of extended microlensed sources having different brightness distribution in the source plane. We generated a set of realizations of lensing point mass system that takes into account an external shear, these include 12000 point masses which are uniformly distributed in the lens plane. The list of the circular symmetric source models used includes gaussian, limbdarkening, power law and Shakura-Sunyaev accretion disk models observed face-on. We estimated difference &eta, between the amplification curves (an analog of the light curves) for these different source models. This difference appears to be considerable, in some cases it amounts up to &sim, 10%. However, the effect of theshear within limits = 0 ÷, 0.5 is not considerable, though it leads to some diminishing of &eta,.
Authors and Affiliations
V. M. Sliusar, V. I. Zhdanov
Keywords
Related Articles
- EP ID EP598658
- DOI -
- Views 52
- Downloads 0
THE PROPERTIS OF TIDAL FORCES IN THE KERR METRIC
The expression for the tidal forces of the two relativistic protons at a distance of the order of the Compton wavelength near a rotating black hole is found. The analysis shows that the tidal forces are dependent on the...
ANALYSIS OF ASTEROID’S OBSERVATIONS IN OPEN PHOTOMETRIC DATABASES
Today there are several open photometric databases containing important information for the study of the physical properties of asteroids. These databases are based on the results of various measurements of the different...
BALDONE SCHMIDT (LATVIA) TELESCOPE ASTROPHOTOS ARCHIVE
From 1967 to 2005, many astrophotos have been taken with the Baldone Schmidt telescope (80cmx120cmx240cm). These photos have being archived in theInstituteofAstronomyof theUniversityofLatvia(IAU code 069, longitude 24.40...
X-RAY SPECTRAL PROPERTIES OF THE ISOLATED AGNs: NGC 1050, NGC 2989, ESO 317-038, ESO 438-009
We have analyzed the spectral data obtained by XMM-Newton, Swift, Chandra, and INTEGRAL space observatories for several isolated AGNs from 2MIG catalogue, for which the available X-ray data were accessed. Among these obj...
CATALOG OF POSITIONS AND B MAGNITUDES OF STARS IN THE CIRCUMPOLAR REGION OF NORTHEN SKY SURVEY (FON) PROJECT
The catalog of star positions and B-magnitudes for the circumpolar region (from 58° to 90° in declination) of Northern Sky Survey project has been created under the motto of the rational use of resources accumulated in U...