Search Results - "Asensio Ramos, A."
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Evidence for Quasi-Isotropic Magnetic Fields from Hinode Quiet-Sun Observations
Published in The Astrophysical journal (20-08-2009)“…Some recent investigations of spectropolarimetric observations of the Zeeman effect in the Fe I lines at 630 nm carried out with the Hinode solar space…”
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Advanced Forward Modeling and Inversion of Stokes Profiles Resulting from the Joint Action of the Hanle and Zeeman Effects
Published in The Astrophysical journal (10-08-2008)“…A big challenge in solar and stellar physics in the coming years will be to decipher the magnetism of the solar outer atmosphere (chromosphere and corona)…”
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3
The Magnetic Response of the Solar Atmosphere to Umbral Flashes
Published in The Astrophysical journal (10-06-2018)“…Chromospheric observations of sunspot umbrae offer an exceptional view of magnetoacoustic shock phenomena and the impact they have on the surrounding…”
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X-RAY ABSORPTION, NUCLEAR INFRARED EMISSION, AND DUST COVERING FACTORS OF AGNs: TESTING UNIFICATION SCHEMES
Published in The Astrophysical journal (10-03-2016)“…ABSTRACT We present the distributions of the geometrical covering factors of the dusty tori (f2) of active galactic nuclei (AGNs) using an X-ray selected…”
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Torus model properties of an ultra-hard X-ray selected sample of Seyfert galaxies
Published in Monthly notices of the Royal Astronomical Society (01-07-2019)“…ABSTRACT We characterize for the first time the torus properties of an ultra-hard X-ray (14–195 keV) volume-limited (DL < 40 Mpc) sample of 24 Seyfert (Sy)…”
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Upholding the unified model for active galactic nuclei: VLT/FORS2 spectropolarimetry of Seyfert 2 galaxies
Published in Monthly notices of the Royal Astronomical Society (11-09-2016)“…The origin of the unification model for active galactic nuclei (AGN) was the detection of broad hydrogen recombination lines in the optical polarized spectrum…”
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The Infrared Nuclear Emission of Seyfert Galaxies on Parsec Scales: Testing the Clumpy Torus Models
Published in The Astrophysical journal (10-09-2009)“…We present subarcsecond resolution mid-infrared (mid-IR) photometry in the wavelength range from 8 to 20 Delta *mm of 18 Seyfert galaxies, reporting high…”
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Testing the Unification Model for Active Galactic Nuclei in the Infrared: Are the Obscuring Tori of Type 1 and 2 Seyferts Different?
Published in The Astrophysical journal (20-04-2011)“…We present new mid-infrared imaging data for three Type-1 Seyfert galaxies obtained with T-ReCS on the Gemini-South Telescope at subarcsecond resolution. Our…”
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A substantial amount of hidden magnetic energy in the quiet Sun
Published in Nature (15-07-2004)“…Deciphering and understanding the small-scale magnetic activity of the quiet solar photosphere should help to solve many of the key problems of solar and…”
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Quiet Sun Center to Limb Variation of the Linear Polarization Observed by CLASP2 Across the Mg ii h and k Lines
Published in The Astrophysical journal (01-09-2022)“…The CLASP2 (Chromospheric LAyer Spectro-Polarimeter 2) sounding rocket mission was launched on 2019 April 11. CLASP2 measured the four Stokes parameters of the…”
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Investigating the sensitivity of observed spectral energy distributions to clumpy torus properties in Seyfert galaxies
Published in Monthly notices of the Royal Astronomical Society (21-04-2014)“…We present nuclear spectral energy distributions (SEDs) from 1 to 18 μm of a small sample of nearby, nearly face-on and undisturbed Seyfert galaxies without…”
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Analysis of spatially deconvolved polar faculae
Published in Monthly notices of the Royal Astronomical Society (21-07-2016)“…Polar faculae are bright features that can be detected in solar limb observations and they are related to magnetic field concentrations. Although there are a…”
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Inferring the 3D Shapes of Extremely Metal-poor Galaxies from Sets of Projected Shapes
Published in The Astrophysical journal (20-09-2019)“…The three-dimensional (3D) shape of a galaxy inevitably is tied to how it has formed and evolved and to its dark matter halo. Local extremely metal-poor…”
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Bayesclumpy: Bayesian Inference with Clumpy Dusty Torus Models
Published in The Astrophysical journal (10-05-2009)“…Our aim is to present a fast and general Bayesian inference framework based on the synergy between machine learning techniques and standard sampling methods…”
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Bayesian Magnetohydrodynamic Seismology of Coronal Loops
Published in The Astrophysical journal (10-10-2011)“…We perform a Bayesian parameter inference in the context of resonantly damped transverse coronal loop oscillations. The forward problem is solved in terms of…”
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Indication of the Hanle Effect by Comparing the Scattering Polarization Observed by CLASP in the Lyα and Si iii 120.65 nm Lines
Published in The Astrophysical journal (20-05-2017)“…The Chromospheric Lyman-Alpha Spectro-Polarimeter is a sounding rocket experiment that has provided the first successful measurement of the linear polarization…”
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ACTIVE REGION FILAMENTS MIGHT HARBOR WEAK MAGNETIC FIELDS
Published in The Astrophysical journal (01-05-2016)“…ABSTRACT Recent spectropolarimetric observations of active region filaments have revealed polarization profiles with signatures typical of the strong field…”
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ON THE MAGNETISM AND DYNAMICS OF PROMINENCE LEGS HOSTING TORNADOES
Published in The Astrophysical journal (10-07-2016)“…ABSTRACT Solar tornadoes are dark vertical filamentary structures observed in the extreme ultraviolet associated with prominence legs and filament barbs. Their…”
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Constraining clumpy dusty torus models using optimized filter sets
Published in Monthly notices of the Royal Astronomical Society (01-01-2013)“…Recent success in explaining several properties of the dusty torus around the central engine of active galactic nuclei has been gathered with the assumption of…”
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A Statistical Inference Method for Interpreting the CLASP Observations
Published in The Astrophysical journal (20-09-2018)“…On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in…”
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