Enrique Lopez Rodriguez

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). IV. Program Overview and First Results on the Polarization Fraction

First results of the Survey of extragalactic magnetism with SOFIA (SALSA) Legacy Program.

Extragalactic Magnetism with SOFIA (SALSA Legacy Program). III. First Data Release and On-the-fly Polarization Mapping Characterization

Implementation and characterization of the on-the-fly-mapping (OTFMAP) polarimetric mode of HAWC+/SOFIA to observe magnetic fields in galaxies. The OTFMAP polarimetric mode offers a reduction of observing overheads by a factor 2.34 and an improvement in sensitivity by a factor 1.80 when compared to the same on-source time polarimetric observations using the chopping and nodding mode.

Extragalactic Magnetism with SOFIA (Legacy Program) - II: A Magnetically Driven Flow in the Starburst Ring of NGC 1097

Characterization of the magnetic fields in the starburst ring of NGC 1097. The gas streams outside and within the starburst ring follow the magnetic field, which feeds the black hole with matter from the host galaxy.

The magnetic field of the warped molecular disk of Centaurus A

Centaurus A has a warped magnetic field tightly following the fast rotating and distorted molecular disk. The magnetic field is amplified via small-scale turbulent fields due to the galaxy merger.

The strength and structure of the magnetic field in the galactic outflow of M82

Collaborative work with solar physicists, which provides a novel approach to quantify the effects of outflows on galactic magnetic fields as well as their influence on the intergalactic medium and evolution of energetic particles. We concluded that the magnetic field in the starburst galaxy M82 is 'open', providing a direct channel between the starburst core and the intergalactic medium.

ALMA Polarimetry measures the magnetically aligned dust grains in the torus of NGC 1068

First detection of magnetically aligned dust grains in the dusty torus of an AGN, thanks to the ALMA polarimetric observations at a resolution of 0.07" (4.2 pc) in Band 7 (860 um).

SOFIA/HAWC+ Traces the Magnetic Fields in NGC 1068

First detection of a galactic spiral magnetic field by means of thermal emission from magnetically aligned dust grains in the grand design spiral galaxy NGC 1068.

The origin of the mid-infrared nuclear polarization of active galactic nuclei

1-13 μm polarimetric observations reveal a diverse set of physical processes responsible for the nuclear polarization of AGN. Radio-Quiet AGN show low polarized cores arising from extended dust, while Radio-Loud AGN show high polarized cores arising from a compact dusty and magnetically driven torus.

The Highly Polarized Dusty Emission Core of Cygnus A

Far-infrared polarimetry suggests that a coherent dusty and magnetic field structure dominates the 10-100 μm emission around the AGN of Cygnus A.

The Emission and Distribution of Dust of the Torus of NGC 1068

The morphology of the dust emission in our 2D image at 432 μm is spatially coincident with the cloud distribution, while the morphology of the emission in the 1-20 μm wavelength range shows an elongated morphology perpendicular to the cloud distribution. We find that our 2D CLUMPY torus image at 12 μm can produce comparable results to those observed using IR interferometry

Infrared polarimetry of Mrk 231: scattering off hot dust grains in the central core

A dusty structure of scales of few pc dominates the infrared polarization of Mrk 231. The most plausible polarization mechanism is dust scattering.

Mid-infrared imaging- and spectro-polarimetric subarcsecond observations of NGC 1068

High-angular imaging- and spectro-polarimetric mid-infrared observations reveal the jet-ionization cones interaction in NGC 1068.

Dichroic polarization at mid-infrared wavelengths: a Bayesian approach

Offering a Bayesian approach to disentangle the several polarization mechanisms at mid-infrared wavelengths.

Near-infrared polarimetric adaptive optics observations of NGC 1068: a torus created by a hydromagnetic outflow wind

The dust located at the inner wall of the torus of NGC 1068 is confined by a strong, ~80 mG, magnetic field.

Polarized Mid-infrared Synchrotron Emission in the Core of Cygnus A

Synchrotron emission dominates from a pc-scale jet close to the core.

NOTE: Check Lopez-Rodriguez et al. 2018b for the most recent results on this topic.

Estimations of the magnetic field strength in the torus of IC 5063 using near-infrared polarimetry

The dusty torus is spatially confined at scales of 1 pc around the active nuclei due to a strong, ~100 mG, magnetic field.