Cashin, Darren
(2022)
Near-Infrared
Integral Field Spectroscopy
of RW Aurigae A.
Masters thesis, National University of Ireland Maynooth.
Abstract
Near-Infrared observations of the classical T Tauri star RW Aurigae A taken using
the OH-Suppressing Infrared Spectrograph (OSIRIS) on the KECK telescope have
been used to investigate the morphology & kinematics of the jet, finding an extended
knot from the main body of the blue jet. Diagnostics have been performed, with the
extinction being found to be higher than previous measurement (Av = 4.6). The jets’
mass-loss rates have been found to be 1.022 ×10−9 M /year and 1.544 ×10−9 M /year
for the blue and red jet, respectively. The mass accretion rate has been measured to be
8.93 ×10−9 M /year using the Brγ emission line, having determined that it is not a
constituent of the jet. The wiggle for the RW Aur jet has been fit with a precession
and orbital model, both pointing to a brown dwarf companion with mass between
0.07 — 0.23 M similar to independently derived results for RW Aur A and for other
protostellar systems where wiggling has been used.
| Item Type: |
Thesis
(Masters)
|
| Keywords: |
Near-Infrared;
Integral Field; Spectroscopy; RW Aurigae A; |
| Academic Unit: |
Faculty of Science and Engineering > Experimental Physics |
| Item ID: |
16563 |
| Depositing User: |
IR eTheses
|
| Date Deposited: |
22 Sep 2022 11:07 |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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