Prokhorov, Dmitry A;
Yang, Yi-Jung;
Ferrazzoli, Riccardo;
Vink, Jacco;
Slane, Patrick;
Costa, Enrico;
Silvestri, Stefano;
... Zane, Silvia; + view all
(2024)
Evidence for a shock-compressed magnetic field in the northwestern rim of Vela Jr. from X-ray polarimetry.
Astronomy & Astrophysics
, 692
, Article A59. 10.1051/0004-6361/202452062.
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Abstract
Synchrotron X-ray emission has been detected from nearly a dozen young supernova remnants (SNRs). X-rays of synchrotron origin exhibit linear polarization in a regular, non-randomly oriented magnetic field. The significant polarized X-ray emission from four such SNRs has already been reported on the basis of observations with the Imaging X-ray Polarimetry Explorer (IXPE). The magnetic-field structure as derived from IXPE observations is radial for Cassiopeia A, Tycho's SNR, and SN 1006, and tangential for RX J1713.7-3946. The latter together with the recent detection of a tangential magnetic field in SNR 1E 0102.2-7219 by the Australia Telescope Compact Array in the radio band shows that tangential magnetic fields can also be present in young SNRs. Thus, the dichotomy in polarization between young and middle-aged SNRs (radial magnetic fields in young SNRs, but tangential magnetic fields in middle-aged SNRs), previously noticed in the radio band, deserves additional attention. The present analysis of IXPE observations determines, for the first time, a magnetic-field structure in the northwestern rim of Vela Jr, also known as RX J0852.0-4622, and provides a new example of a young SNR with a tangential magnetic field.
| Type: | Article |
|---|---|
| Title: | Evidence for a shock-compressed magnetic field in the northwestern rim of Vela Jr. from X-ray polarimetry |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1051/0004-6361/202452062 |
| Publisher version: | https://doi.org/10.1051/0004-6361/202452062 |
| Language: | English |
| Additional information: | Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | polarization / shock waves / ISM: supernova remnants / X-rays: individuals: RX J0852.0−4622 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10205281 |
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