Polarization and polarimetry: a review
TLDR
Polarization is a fundamental property of light and is fundamentally linked to the internal geometry of a source of radiation as discussed by the authors, and it has made possible multiple astrophysical discoveries, including the discovery of the cosmic microwave background radiation.Abstract:
Polarization is a basic property of light and is fundamentally linked to the internal geometry of a source of radiation. Polarimetry complements photometric, spectroscopic, and imaging analyses of sources of radiation and has made possible multiple astrophysical discoveries. In this article I review (i) the physical basics of polarization: electromagnetic waves, photons, and parameterizations; (ii) astrophysical sources of polarization: scattering, synchrotron radiation, active media, and the Zeeman, GoldreichKylafis, and Hanle effects, as well as interactions between polarization and matter (like birefringence, Faraday rotation, or the Chandrasekhar-Fermi effect); (iii) observational methodology: on-sky geometry, influence of atmosphere and instrumental polarization, polarization statistics, and observational techniques for radio, optical, and X/ wavelengths; and (iv) science cases for astronomical polarimetry: solar and stellar physics, planetary system bodies, interstellar matter, astrobiology, astronomical masers, pulsars, galactic magnetic fields, gamma-ray bursts, active galactic nuclei, and cosmic microwave background radiation.read more
Citations
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Journal ArticleDOI
Circularly Polarized Luminescence in Nanoassemblies: Generation, Amplification, and Application.
Yutao Sang,Jianlei Han,Tonghan Zhao,Tonghan Zhao,Pengfei Duan,Pengfei Duan,Minghua Liu,Minghua Liu +7 more
TL;DR: The present status and progress of self-assembled nanomaterials with CPL activity are reviewed and an overview of the key factors in regulating chiral emission materials at the supramolecular level will largely boost their application in multidisciplinary fields.
Journal ArticleDOI
Recent Progress on Circularly Polarized Luminescent Materials for Organic Optoelectronic Devices
Cosmic Magnetic Fields : from Planets, to Stars and Galaxies
TL;DR: From Strongly Magnetized Neutron Stars (SNEST) as mentioned in this paper, the strongest magnetized neutron stars (SMEs) have been used in the last 50 years.
Journal ArticleDOI
Measurements of Photospheric and Chromospheric Magnetic Fields
TL;DR: In this article, the authors present an overview of magnetic field measurements in the solar photosphere and highlight some promising future developments for their solution, and discuss the problems of determining magnetic fields at smallest spatial scales with increasing demands on polarimetric sensitivity and temporal resolution.
Journal ArticleDOI
Polarized light from Sagittarius A* in the near-infrared K_{s}-band
Banafsheh Shahzamanian,Banafsheh Shahzamanian,Andreas Eckart,Andreas Eckart,M. Valencia-S.,G. Witzel,Mohammad Zamaninasab,Nadeen B. Sabha,Nadeen B. Sabha,Macarena Garcia-Marin,Vladimir Karas,G. D. Karssen,A. Borkar,A. Borkar,Michal Dovciak,D. Kunneriath,Michal Bursa,R. M. Buchholz,J. Moultaka,Christian Straubmeier +19 more
TL;DR: In this article, the authors present a statistical analysis of polarized near-infrared light from Sgr A*, the radio source associated with the supermassive black hole at the center of the Milky Way.
References
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