Search engine for discovering works of Art, research articles, and books related to Art and Culture
ShareThis
Javascript must be enabled to continue!

Investigating properties of multi-stranded filament structures in the galactic center

View through CrossRef
The Galactic Center (GC) is an extreme region of the Milky Way possessing elevated molecular temperatures and densities. A population of unique structures exists in the GC known as the non-thermal filaments (NTFs), which are highly polarized, thread-like structures. Much remains unknown about these thread-like structures, such as how they were formed and why they only appear in the GC. Recent 1 GHz observations of the GC using MeerKAT have identified several multi-stranded NTFs throughout the GC region. These multi-stranded NTFs contrast with the previously studied NTFs that contain only one or a few filaments (single-stranded NTFs). One key question is whether the multi-stranded and single-stranded NTFs were formed in different ways. For my dissertation I study the multi-stranded NTFs to determine whether there are any systematic differences between the single- and multi-stranded NTF population. I begin with a targeted study of the most prominent multi-stranded NTF, known as the Radio Arc. This study used the Australia Telescope Compact Array interferometer to study the Radio Arc over a wide frequency range (4 - 12 GHz). I then discuss a Very Large Array study of several multi-stranded NTFs observed from 4 - 12 GHz, beginning with their total intensity properties such as their morphologies and spectral indices. I then analyze the polarimetric and magnetic field properties of these structures. From these studies I find that the multi-stranded NTFs were likely formed in the same way as the single-stranded NTFs.
Title: Investigating properties of multi-stranded filament structures in the galactic center
Description:
The Galactic Center (GC) is an extreme region of the Milky Way possessing elevated molecular temperatures and densities.
A population of unique structures exists in the GC known as the non-thermal filaments (NTFs), which are highly polarized, thread-like structures.
Much remains unknown about these thread-like structures, such as how they were formed and why they only appear in the GC.
Recent 1 GHz observations of the GC using MeerKAT have identified several multi-stranded NTFs throughout the GC region.
These multi-stranded NTFs contrast with the previously studied NTFs that contain only one or a few filaments (single-stranded NTFs).
One key question is whether the multi-stranded and single-stranded NTFs were formed in different ways.
For my dissertation I study the multi-stranded NTFs to determine whether there are any systematic differences between the single- and multi-stranded NTF population.
I begin with a targeted study of the most prominent multi-stranded NTF, known as the Radio Arc.
This study used the Australia Telescope Compact Array interferometer to study the Radio Arc over a wide frequency range (4 - 12 GHz).
I then discuss a Very Large Array study of several multi-stranded NTFs observed from 4 - 12 GHz, beginning with their total intensity properties such as their morphologies and spectral indices.
I then analyze the polarimetric and magnetic field properties of these structures.
From these studies I find that the multi-stranded NTFs were likely formed in the same way as the single-stranded NTFs.

Related Results

Interaction between a Quasi-Geostrophic Buoyancy Filament and a Heton
Interaction between a Quasi-Geostrophic Buoyancy Filament and a Heton
We investigate the interaction between a heton and a current generated by a filament of buoyancy anomaly at the surface. Hetons are baroclinic dipoles consisting of a pair of vorti...
On fibre
On fibre
The author observes, that, in the mature blood-corpuscle, there is often seen a flat filament, already formed within the corpuscle. In Mammalia, including Man, this filament is fre...
ГАЛАКТИЧНІ СЛІДИ РЕГЕНЕРАЦІЇ ВОДНЮ
ГАЛАКТИЧНІ СЛІДИ РЕГЕНЕРАЦІЇ ВОДНЮ
The article discusses direct consequences of hydrogen regeneration mechanisms observed in galaxies when galactic nuclei are active. Previously, these mechanisms have been presented...
Multi-Wavelength Observations of a Failed Filament Eruption and Associated Hovered Coronal Mass Ejection
Multi-Wavelength Observations of a Failed Filament Eruption and Associated Hovered Coronal Mass Ejection
Failed filament eruption remains mysterious on its initiation, magnetic environment, and erupting and failing mechanisms. We present multi-wavelength observations of a failed filam...
The geometry of the magnetic field in the central molecular zone measured by PILOT
The geometry of the magnetic field in the central molecular zone measured by PILOT
We present the first far infrared (FIR) dust emission polarization map covering the full extent of Milky Way’s central molecular zone (CMZ). The data, obtained with the PILOT ballo...
Exploitation of Stranded Gas Reservoirs Through Virtual Gas Pipeline in Pakistan - Techno-economic Analysis
Exploitation of Stranded Gas Reservoirs Through Virtual Gas Pipeline in Pakistan - Techno-economic Analysis
Abstract Unavailability of gas transmission network near a hydrocarbon discovery leading to high pipeline infrastructure development cost and can cause delays in pro...
RecA filament sliding on DNA facilitates homology search
RecA filament sliding on DNA facilitates homology search
During homologous recombination, RecA forms a helical filament on a single stranded (ss) DNA that searches for a homologous double stranded (ds) DNA and catalyzes the exchange of c...
The extrusion process of 3D printer filament from recycled plastics has various challenges in the effort to produce quality filaments. One of the important factors affecting the fi...

Back to Top