Roy, Arijit, Singh, Surendra V, Meka, J K, Ramachandran, R, Sahu, D, Gautam, A, Vijay, T, Vishakantaiah, Jayaram, Janardhan, P, Rajasekhar, B N, and others. (2022) Shock-induced transformation of non-magnetic to magnetic ISM dust analogue. Monthly Notices of the Royal Astronomical Society, 517 (4). pp. 4845-4855. ISSN 0035-8711. E-ISSN 1365-2966. (doi:10.1093/mnras/stac2637) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:98127)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication) | |
| Official URL: https://doi.org/10.1093/mnras/stac2637 |
Abstract
The fate of organometallic dust subjected to extreme conditions, especially the shock fronts, in the interstellar medium (ISM) has not been explored to date. Iron and cyclopentadiene, which have been found to be present in the ISM, are known to react and produce the organometallic compound ferrocene under terrestrial conditions. In our experiment we subjected ferrocene, a possible proxy of such dust, to ∼5.6 Mach (M) shock commensurate with conditions encountered in the ISM, leading to a temperature rise up to 7300 K within 2 ms. Analysis of the post-shock residue showed the presence of a α-Fe and Fe3C composite that responded to an external magnetic field. These results show that a non-magnetic dust composed of molecules containing transition metals undergoing shock processing in the ISM can dissociate and synthesize dust that is then magnetic. Such drastic transformations from non-magnetic to magnetic dust induced by shocks might be of importance in interstellar polarization.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1093/mnras/stac2637 |
| Additional information: | ** Article version: VoR ** From Crossref journal articles via Jisc Publications Router ** History: epub 20-09-2022; issued 20-09-2022; ppub 09-11-2022. ** Licence for VoR version of this article starting on 20-09-2022: https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
| Uncontrolled keywords: | Space and Planetary Science; Astronomy and Astrophysics; Astrochemistry, shock waves, methods: laboratory, dust, extinction |
| Subjects: | Q Science |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| SWORD Depositor: | JISC Publications Router |
| Depositing User: | JISC Publications Router |
| Date Deposited: | 05 Dec 2022 15:31 UTC |
| Last Modified: | 13 Dec 2022 14:56 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/98127 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Mason, N J.
| Creator's ORCID: |
 https://orcid.org/0000-0002-4468-8324
|
|---|---|
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