Microlensing Analysis for the Gravitational Lens Systems SDSS0924+0219, Q1355-2257, and SDSS1029+2623

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dc.contributor.authorRojas, Karina
dc.contributor.authorMotta, Verónica
dc.date.accessioned2021-11-22T14:38:06Z
dc.date.available2021-11-22T14:38:06Z
dc.date.issued2020
dc.description.abstractWe use spectroscopic observations of the gravitationally lensed systems SDSS0924+0219(BC), Q1355-2257(AB), and SDSS1029+2623(BC) to analyze microlensing and dust extinction in the observed components. We detect chromatic microlensing effects in the continuum and microlensing in the broad emission line profiles of the systems SDSS0924+0219(BC) and Q1355-2257(AB). Using magnification maps to simulate microlensing and modeling the emitting region as a Gaussian intensity profile with size rs ∝ λp, we obtain the probability density functions for a logarithmic size prior to ‐ Å lrest frame = 3533 . In the case of SDSS0924+0219, we obtain = -  r 4+ M M s 2 3 lt-d (at 1σ), which is larger than the range of other estimates, and p=0.8±0.2 (at 1σ), which is smaller than predicted by the thin disk theory, but still in agreement with previous results. In the case of Q1355- 2257 we obtain (at 1σ) = -  r 3.6+ M M s 1.6 3.0 lt-d, which is also larger than the theoretical prediction, and p=2.0±0.7, which is in agreement with the theory within errors. SDSS1029+2326 spectra show evidence of extinction, probably produced by a galaxy in the vicinity of image C. Fitting an extinction curve to the data we estimate ΔE∼0.2 in agreement with previous results. We found no evidence of microlensing for this systemen_ES
dc.facultadFacultad de Cienciasen_ES
dc.identifier.doihttps://doi.org/10.3847/1538-4357/ab63cb
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/2702
dc.language.isoenen_ES
dc.publisherThe American Astronomical Societyen_ES
dc.sourceThe Astrophysical Journalen_ES
dc.subjectSTRONG GRAVITATIONAL LENSINGen_ES
dc.subjectQUASAR MICROLENSINGen_ES
dc.subjectQUASARSen_ES
dc.titleMicrolensing Analysis for the Gravitational Lens Systems SDSS0924+0219, Q1355-2257, and SDSS1029+2623en_ES
dc.typeArticuloen_ES
uv.catalogadorRCR DIBRAen_ES
uv.departamentoInstituto de Fisica y Astronomiaen_ES
uv.notageneralVarios autoresen_ES

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