Results 31 to 40 of about 959 (179)
Spectropolarimetry of the Circinus Galaxy
, 1997 5 pages, 4 figures, need A&A latex style files.
E. Oliva +3 more
openaire +3 more sources
Silicon Channeled Spectropolarimeter for On‐Chip Single‐Detector Stokes Spectroscopy
Advanced Photonics Research, 2022 Compact and low‐cost spectropolarimeters are desirable in many fields for probing the wavelength‐dependent polarization state of light. Conventional spectropolarimetry systems use bulky, free‐space optical components or require at least four ...
Zhongjin Lin +4 more
doaj +1 more source
Probing the geometry of supernovae with spectropolarimetry [PDF]
AIP Conference Proceedings, 2000 We present results from a spectropolarimetric survey of young supernovae completed at the Keck Observatory, including at least one example from each of the major supernova types: Ia (1997dt), Ib (1998T, 1997dq), Ib/c-pec (1997ef), IIn (1997eg), and II-P (1997ds). All objects show evidence for intrinsic polarization, suggesting that asphericity may be a
Leonard, Douglas C. +2 more
openaire +2 more sources
Magnetic Fields in Solar Plage Regions: Insights from High-sensitivity Spectropolarimetry
The Astrophysical Journal Letters, 2023 Plage regions are patches of concentrated magnetic field in the Sun’s atmosphere where hot coronal loops are rooted. While previous studies have shed light on the properties of plage magnetic fields in the photosphere, there are still challenges in ...
J. M. da Silva Santos +9 more
doaj +1 more source
Spectropolarimetry of Comet Halley [PDF]
International Astronomical Union Colloquium, 1991 Abstract Spectropolarimetric observations from 3800 to 7000 Å were obtained for the nucleus of comet Halley for nine nights during 1985-86. The observations were spaced over phase angle of 2 to 66 °. The continuum polarization without molecular-line contamination as well as the polarization of the molecular lines were evaluated.
N. Visvanathan +2 more
openaire +1 more source
Basics of spectropolarimetry [PDF]
Proceedings of the International Astronomical Union, 2014 AbstractMany astronomical sources of radiation emit polarised radiation, for example because of the presence of a disk which produces linear polarisation by scattering some photospheric radiation, or because of the presence of a magnetic field, which leads to circular and sometimes linear polarisation of spectral line profiles. Measuring the wavelength
openaire +1 more source
Do's and Don'ts When Visiting Circularly Polarized Luminescence
Advanced Optical Materials, Volume 14, Issue 11, 20 March 2026.This perspective presents our insights into the principles, challenges, and opportunities of circularly polarized luminescence (CPL). Highlighting key concepts such as the dissymmetry factor (glum) and molecular design strategies, we discuss advances in CPL efficiency, emerging NIR emitters, solid‐state applications, and the growing role of theory and ...
Rafael G. Uceda +9 more
wiley +1 more source
Intermediate-Mass Mergers: A New Scenario for Several FS CMa Stars
GalaxiesWe summarise the properties and nature of a peculiar group of B-type stars called FS CMa stars. These stars show the B[e] phenomenon, i.e., their spectra exhibit both forbidden emission lines and infrared excess.
Daniela Korčáková +8 more
doaj +1 more source
Nonlocal metasurfaces: universal modal maps governed by a nonlocal generalized Snell's law
Nanophotonics, Volume 14, Issue 23, Page 3851-3860, 02 November 2025.Abstract In this opinion, we describe the potential of an emerging class of flat optics known as “nonlocal metasurfaces” to manipulate light in both real space and momentum space. While the ultimate form of a conventional “local” metasurface can be viewed as a universal generator of any desired waveform from a fixed input wavefront, the ultimate form ...
Adam Overvig, Francesco Monticone
wiley +1 more source
Rapid Deep Vat Printing Using Photoclickable Collagen‐Based Bioresins
Advanced Healthcare Materials, Volume 14, Issue 28, November 3, 2025.Collagen‐based resin formulations based on thiol‐ene photoclick chemistry are demonstrated. These resins enable easy handleability under neutral conditions and further allow facile fabrication of multicellular tissue constructs via tomographic or FLight printing.
Michael Winkelbauer +8 more
wiley +1 more source