NLTE effects in iron lines are carefully investigated for the sunspot umbral model of Maltby et. al. (1986). Our model atom is realistic: it has hundreds of...
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PublicaciónIs LTE a Suitable Approximation for Fe I - based Diagnostics of the Thermal Structure of Sunspots?
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CharlaJWST view of Polycyclic Aromatic Hydrocarbons and dust in local active galaxies
Nowadays, it is widely accepted that most galaxies undergo an active phase in their evolution. The impact of the energy released by active galactic nuclei (AGN)...
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NoticiaLa NASA premia al equipo de la misión CLASP2.1
El equipo internacional de las misiones espaciales “Chromospheric LAyer Spectro-Polarimeter” (CLASP), que incluye a tres investigadores del Instituto de...
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PublicaciónNew polarimetric and spectroscopic evidence of anomalous enrichment in spinel-bearing calcium-aluminium-rich inclusions among L-type asteroids
Asteroids can be classified into several groups based on their spectral reflectance. Among these groups, the one belonging to the L-class in the taxonomic...
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PublicaciónOn the Collisional Disalignment of Dust Grains in Illuminated and Shaded Regions of IC 63
Interstellar dust grain alignment causes polarization from UV to mm wavelengths, allowing the study of the geometry and strength of the magnetic field. Over the...
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PublicaciónPhotometric and Polarimetric Observations of the Wolf-Rayet Eclipsing Binary HD 5980 in the Small Magellanic Cloud
We present results of photometry and photopolarimetry of the Wolf-Rayet eclipsing binary system HD 5980 in the Small Magellanic Cloud, which underwent an...
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PublicaciónPolarimetric Measurements of Sunspots
Making emphasis on observations that have included some type of polarization analysis, I concentrate on two subjects. First, the vector magnetic field...
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PublicaciónPolarizing properties of grazing-incidence X-ray mirrors - Comment
We show that grazing-incidence telescopes, like those used for X-ray imaging, present negligible instrumental polarization. This property does not depend on the...
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PublicaciónSpace Certifiability of LCVRs
This contribution is a report on a test campaign carried out by the IAC, in collaboration with Construcciones Aeronauticas, S.A. (CASA) as a main contrac tor...