Internal and external alignment of carbonaceous grains within the radiative torque paradigm
We study the internal and external alignment of carbonaceous grains in the interstellar
medium (ISM) within the Radiative Torque (RAT) paradigm. For internal alignment (IA), we …
medium (ISM) within the Radiative Torque (RAT) paradigm. For internal alignment (IA), we …
Submillimeter-wavelength Polarimetry of IRC+ 10216
BG Andersson, J Karoly, P Bastien… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract We present SCUBA-2/POL-2 850 μm polarimetric observations of the circumstellar
envelope (CSE) of the carbon-rich asymptotic giant branch (AGB) star IRC+ 10216. Both far …
envelope (CSE) of the carbon-rich asymptotic giant branch (AGB) star IRC+ 10216. Both far …
Far-infrared polarization of the supernova remnant Cassiopeia A with SOFIA HAWC+
We present polarization observations of the young supernova remnant (SNR) Cas A using
the High-resolution Airborne Wideband Camera-Plus (HAWC+) instrument onboard the …
the High-resolution Airborne Wideband Camera-Plus (HAWC+) instrument onboard the …
The origin of dust polarization in the Orion Bar
VJM Le Gouellec, BG Andersson, A Soam… - The Astrophysical …, 2023 - iopscience.iop.org
The linear polarization of thermal dust emission provides a powerful tool to probe interstellar
and circumstellar magnetic fields, because aspherical grains tend to align themselves with …
and circumstellar magnetic fields, because aspherical grains tend to align themselves with …
Ultraviolet spectropolarimetry with Polstar: interstellar medium science
Continuum polarization over the UV-to-microwave range is due to dichroic extinction (or
emission) by asymmetric, aligned dust grains. Scattering can also be an important source of …
emission) by asymmetric, aligned dust grains. Scattering can also be an important source of …
Molecular line polarisation from the circumstellar envelopes of asymptotic giant branch stars
WHT Vlemmings, B Lankhaar… - Astronomy & …, 2024 - aanda.org
Context. Polarisation observations of masers in the circumstellar envelopes (CSEs) around
asymptotic giant branch (AGB) stars have revealed strong magnetic fields. However, masers …
asymptotic giant branch (AGB) stars have revealed strong magnetic fields. However, masers …
On the origin of de‐polarization in CB54
N Zielinski, S Wolf, K Pattle - Astronomische Nachrichten, 2023 - Wiley Online Library
We present polarimetric observations of the Bok globule CB54 in the far‐infrared via
SOFIA/HAWC+ bands D (154 μ μ m) and E (214 μ μ m). We detect polarization with mean …
SOFIA/HAWC+ bands D (154 μ μ m) and E (214 μ μ m). We detect polarization with mean …
Three-component modelling of O-rich AGB star winds-I. Effects of drift using forsterite
C Sandin, L Mattsson, KL Chubb, M Ergon… - Astronomy & …, 2023 - aanda.org
Stellar winds of cool and pulsating asymptotic giant branch (AGB) stars enrich the interstellar
medium with large amounts of processed elements and various types of dust. We present …
medium with large amounts of processed elements and various types of dust. We present …
Numerical modelling of thermal dust polarization from aligned grains in the envelope of evolved stars with updated POLARIS
Magnetic fields are thought to influence the formation and evolution of circumstellar
envelopes around evolved stars. Thermal dust polarization from aligned grains is a …
envelopes around evolved stars. Thermal dust polarization from aligned grains is a …
Synthetic Modelling of Polarized Dust Emission in Intermediate-Mass YSOs: I: Constraining the Role of Iron Inclusions and Inelastic Relaxation on Grain Alignment …
Iron inclusions embedded inside dust grains play a crucial role in both internal alignment via
Barnett relaxation and external alignment via the MAgnetically Enhanced RAdiative Torque …
Barnett relaxation and external alignment via the MAgnetically Enhanced RAdiative Torque …