0000000000762788

AUTHOR

P. Gómez-álvarez

showing 3 related works from this author

Recurrence of the blue wing enhancements in the high ionization lines of SDSS 1004+4112 A

2006

We present integral field spectroscopic observations of the quadruple-lensed QSO SDSS 1004+4112 taken with the fiber system INTEGRAL at the William Herschel Telescope on 2004 January 19. In 2003 May, a blueward enhancement in the high-ionization lines of SDSS 1004+4112A was detected, and then it faded. Our observations are the first to note a second event of similar characteristics less than 1 year after. Although initially attributed to microlensing, the resemblance among the spectra of both events and the absence of microlensing-induced changes in the continuum of component A are puzzling. The lack of a convincing explanation under the microlensing or intrinsic variability hypotheses make…

PhysicsQuasars: emission linesAstrophysics (astro-ph)Gravitational lensingFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsGravitational microlensingAstrophysicsSpectral lineemission lines [Quasars]Space and Planetary Scienceindividual (SDSS 1004-4112) [Quasars]IonizationQuasars: individual (SDSS 1004-4112)William Herschel Telescope
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Microlensing of a Biconical Broad‐Line Region

2006

The influence of microlensing in the profiles of the emission lines generated in a biconical geometry is discussed. Microlensing amplification in this anisotropic model is not directly related to the bicone's intrinsic size but depends on the orientation of the bicone axis and on the cone aperture. The orientation of the projected bicone with respect to the shear of the magnification pattern can induce very interesting effects, like the quasi-periodic enhancements of the red/blue part of the emission line profile or the lack of correlation between the broad line region (BLR) and continuum light curves of QSOs. The emission line profiles of a BLR moving in a high caustic concentration exhibi…

QSOSPhysicsAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsQuasarAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsAstrophysicsLight curveGravitational microlensingBiconeStarsWavelengthSpace and Planetary ScienceEmission spectrumAstrophysics::Galaxy AstrophysicsThe Astrophysical Journal
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Integral field spectroscopy of the gravitational lens HE1104-1805

2004

We present integral field spectroscopy of the double imaged quasar HE1104-1805 taken with the optical fiber system INTEGRAL-WYFFOS at theWHT telescope. From the spectra of the two components we have measured the continuum and line emission ratios, finding an offset between them that can be related to microlensing. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

PhysicsOptical fiberbusiness.industryGravitational lensing formalismStrong gravitational lensingAstronomy and AstrophysicsQuasarAstrophysicsGravitational microlensinglaw.inventionTelescopeOpticsGravitational lensSpace and Planetary SciencelawbusinessWeak gravitational lensingAstronomische Nachrichten
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