Results 91 to 100 of about 959 (179)

Enigmatic Line Broadening during Solar Flares: Magnetic Field Broadening?

open access: yesThe Astrophysical Journal
The origin of the extreme broadening observed in chromospheric metal lines during solar and stellar flares—particularly Mg  ii h and k and Ca  ii H and K—remains poorly understood.
Thomas A. Gomez   +4 more
doaj   +1 more source

Spectropolarimetry of SN 2023ixf Reveals Both Circumstellar Material and an Aspherical Helium Core

open access: yesThe Astrophysical Journal Letters
We present multi-epoch optical spectropolarimetric and imaging polarimetric observations of the nearby Type II supernova (SN) 2023ixf discovered in M101 at a distance of 6.85 Mpc.
Manisha Shrestha   +35 more
doaj   +1 more source

Photospheric Prompt Emission from Long Gamma Ray Burst Simulations. III. X-Ray Spectropolarimetry

open access: yesThe Astrophysical Journal
While gamma-ray bursts (GRBs) have the potential to shed light on the astrophysics of jets, compact objects, and cosmology, a major set back in their use as probes of these phenomena stems from our incomplete knowledge surrounding their prompt emission ...
Tyler Parsotan, Davide Lazzati
doaj   +1 more source

Expression, Purification and Characterization of Functional Teduglutide Using GST Fusion System in Prokaryotic Cells. [PDF]

open access: yesAdv Pharm Bull, 2023
Alizadeh AA   +4 more
europepmc   +1 more source

Spectropolarimetry of Infant Supernovae

open access: yes, 2019
The explosion process of supernova is so dominant that the ejecta wipe out almost all traces of the pre-explosion configuration within a few days. Conventional photometry or spectroscopy provide limited information on the structures of the circumstellar medium as well as the SN ejecta themselves, projected and smeared into the single dimension of ...
openaire   +1 more source

An axisymmetric shock breakout indicated by prompt polarized emission from the type II supernova 2024ggi. [PDF]

open access: yesSci Adv
Yang Y   +20 more
europepmc   +1 more source

Differential Polarization Imaging of Plant Cells. Mapping the Anisotropy of Cell Walls and Chloroplasts. [PDF]

open access: yesInt J Mol Sci, 2021
Radosavljević JS   +5 more
europepmc   +1 more source

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