Shahzamanian, Banafsheh ORCID: 0000-0001-6437-6806, Eckart, Andreas
ORCID: 0000-0001-6049-3132, Zajacek, Michal
ORCID: 0000-0001-6450-1187, Valencia-S, Monica and Sabha, Nadeen B.
ORCID: 0000-0001-7134-9005
(2018).
Polarization: A Method to Reveal the True Nature of the Dusty S-Cluster Object (DSO/G2).
Galaxies, 6 (1).
BASEL:
MDPI.
ISSN 2075-4434
Abstract
There have been different scenarios describing the nature of a dusty source, noted as Dusty S-cluster Object (DSO) or G2, orbiting around the Galactic centre super-massive black hole. Observing the polarized continuum emission of this source provides information on its nature and geometry. We show that this source is intrinsically polarized with polarization degree of 30%, implying that it has a non-spherical geometry, and a varying polarization angle in the ambient medium of the black hole. Its main observable properties can be well described and modeled with a pre-main-sequence star forming a bow shock as it approaches the Sgr A* position.
Item Type: | Journal Article | ||||||||||||||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-193787 | ||||||||||||||||||||||||
DOI: | 10.3390/galaxies6010013 | ||||||||||||||||||||||||
Journal or Publication Title: | Galaxies | ||||||||||||||||||||||||
Volume: | 6 | ||||||||||||||||||||||||
Number: | 1 | ||||||||||||||||||||||||
Date: | 2018 | ||||||||||||||||||||||||
Publisher: | MDPI | ||||||||||||||||||||||||
Place of Publication: | BASEL | ||||||||||||||||||||||||
ISSN: | 2075-4434 | ||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||
Faculty: | Faculty of Mathematics and Natural Sciences | ||||||||||||||||||||||||
Divisions: | Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics I | ||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||
Uncontrolled Keywords: |
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Refereed: | Yes | ||||||||||||||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/19378 |
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