Results 81 to 90 of about 3,094 (200)

Line Polarization of Si ii λ6355 Å in Type Ia Supernovae: A New Statistical Approach to Probe the Explosion Physics and Diversity

The Astrophysical Journal Letters
Spectropolarimetry provides a unique probe of ejecta asphericities, offering direct insights into the underlying explosion physics of Type Ia supernovae (SNe Ia).
Aleksandar Cikota, Peter Hoeflich, Dietrich Baade, Ferdinando Patat, Lifan Wang, J. Craig Wheeler, Yi Yang, Elham Fereidouni, Divya Mishra   +8 more
doaj   +1 more source

Spatially resolved measurement of helium atom emission line spectrum in scrape-off layer of Heliotron J by near-infrared Stokes spectropolarimetry. [PDF]

Sci Rep, 2022
Chatani T, Shikama T, Ueno Y, Kado S, Kawazome H, Minami T, Matoike R, Murakumo M, Kobayashi S, Ohshima S, Iwata A, Oishi T, Ishizawa A, Nakamura Y, Okada H, Konoshima S, Mizuuchi T, Nagasaki K, Hasuo M.   +18 more
europepmc   +1 more source

Spectropolarimetry of FIRST 0840 + 3633 [PDF]

, 1997
We present Keck spectropolarimetry of a rare ``Iron Lo- BALQSO,`` FIRST 0840+3633. The continuum is {approximately}4% polarized near 2000{Angstrom} rest-frame, but falls to {approximately}2% at longer wavelengths, and maintains a relatively constant ...
Brotherton, M.S., Antonucci, R., Van Breugel, N., Dey, A.   +3 more
core  

Discovery of Variable Polarization in the Hα Profile of the Symbiotic Star Y Gem: A Case for Orbital-phase-dependent Variation in Raman-scattered Lyβ Emission

The Astrophysical Journal
The geometry and morphology of symbiotic stars (SySts) are conducive to a variety of scattering phenomena. Among the most prominent is the Raman scattering of the O VI doublet λλ 1032, 1038, which often shows strongly polarized features in the visible ...
Arijit Maiti, Mudit K. Srivastava, Vipin Kumar   +2 more
doaj   +1 more source

Snapshot Mueller spectropolarimeter imager. [PDF]

Microsyst Nanoeng, 2023
Dai T, Phan T, Wang EW, Kwon S, Son J, Lee M, Fan JA.   +6 more
europepmc   +1 more source

X-Ray Polarization Study of the Neutron Star Low-mass X-Ray Binary GX 349+2

The Astrophysical Journal
We report the first X-ray polarimetric results of the neutron star (NS) low-mass X-ray binary Z-source GX 349+2 using the Imaging X-ray Polarimetry Explorer (IXPE). We discovered that the X-ray source was polarized at a polarization degree of PD = 1.1% ± 
Unnati Kashyap, Thomas J. Maccarone, Mason Ng, Eliot C. Pattie, Swati Ravi, Herman L. Marshall   +5 more
doaj   +1 more source

Novel developments in computational spectropolarimeter. [PDF]

Light Sci Appl, 2023
Hsiang EL, Wu ST.
europepmc   +1 more source

Testing spectropolarimetry in the extreme ultraviolet to infer the solar coronal magnetic field

, 2012
Context. Spectropolarimetry has the potential to provide us with important coronal plasma parameters. Aims. We test spectropolarimetric forward modelling by investigating whether it is possible to reproduce the only linear polarisation ...
A. Khan
core   +1 more source

Energy-dependent Polarization Angle Variability as a Robust Diagnostic for Blazar Flaring Mechanisms

The Astrophysical Journal
Identifying the physical mechanism driving blazar flares remains a central challenge in high-energy astrophysics. We show that the energy dependence of the standard deviation of the polarization angle variability ( σ _PA ) provides a powerful and robust ...
Haocheng Zhang, Benjamin de Jonge, Manel Errando, Xiaocan Li, Fan Guo   +4 more
doaj   +1 more source

Spectropolarimetry of WR66

, 1996
We have carried out spectropolarimetric observations of the Wolf-Rayet star WR66 (WN8) with EFOSC1 mounted on the ESO 3.6m telescope of La Silla. The results indicate a polarization level of about 5 to 6 % in the continuum which is most probably due to interstellar polarization.
Lamy, H., Hutsemekers, Damien, Rauw, Grégor   +2 more
openaire   +1 more source