Multi-dimensional simulations of the expanding supernova remnant of SN 1987A
-
Altmetric Citations
Potter, Toby; Staveley-Smith, Lister; Reville, Brian; Ng, C-Y; Bicknell, Geoffrey; Sutherland, Ralph; Wagner, Alexander
Description
The expanding remnant from SN 1987A is an excellent laboratory for investigating the physics of supernovae explosions. There is still a large number of outstanding questions, such as the reason for the asymmetric radio morphology, the structure of the pre-supernova environment, and the efficiency of particle acceleration at the supernova shock. We explore these questions using three-dimensional simulations of the expanding remnant between days 820 and 10,000 after the supernova. We combine a...[Show more]
dc.contributor.author | Potter, Toby | |
---|---|---|
dc.contributor.author | Staveley-Smith, Lister | |
dc.contributor.author | Reville, Brian | |
dc.contributor.author | Ng, C-Y | |
dc.contributor.author | Bicknell, Geoffrey | |
dc.contributor.author | Sutherland, Ralph | |
dc.contributor.author | Wagner, Alexander | |
dc.date.accessioned | 2015-12-10T22:39:33Z | |
dc.identifier.issn | 0004-637X | |
dc.identifier.uri | http://hdl.handle.net/1885/57229 | |
dc.description.abstract | The expanding remnant from SN 1987A is an excellent laboratory for investigating the physics of supernovae explosions. There is still a large number of outstanding questions, such as the reason for the asymmetric radio morphology, the structure of the pre-supernova environment, and the efficiency of particle acceleration at the supernova shock. We explore these questions using three-dimensional simulations of the expanding remnant between days 820 and 10,000 after the supernova. We combine a hydrodynamical simulation with semi-analytic treatments of diffusive shock acceleration and magnetic field amplification to derive radio emission as part of an inverse problem. Simulations show that an asymmetric explosion, combined with magnetic field amplification at the expanding shock, is able to replicate the persistent one-sided radio morphology of the remnant. We use an asymmetric Truelove & McKee progenitor with an envelope mass of 10 M⊙ and an energy of 1.5 × 1044 J. A termination shock in the progenitor's stellar wind at a distance of 0″.43-0″.51 provides a good fit to the turn on of radio emission around day 1200. For the H II region, a minimum distance of 0″.63 ± 0″.01 and maximum particle number density of (7.11 ± 1.78) × 107 m-3 produces a good fit to the evolving average radius and velocity of the expanding shocks from day 2000 to day 7000 after explosion. The model predicts a noticeable reduction, and possibly a temporary reversal, in the asymmetric radio morphology of the remnant after day 7000, when the forward shock left the eastern lobe of the equatorial ring. | |
dc.publisher | IOP Publishing | |
dc.rights | Author/s retain copyright | |
dc.source | Astrophysical Journal, The | |
dc.title | Multi-dimensional simulations of the expanding supernova remnant of SN 1987A | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 794 | |
dc.date.issued | 2014 | |
local.identifier.absfor | 020100 - ASTRONOMICAL AND SPACE SCIENCES | |
local.identifier.absfor | 020103 - Cosmology and Extragalactic Astronomy | |
local.identifier.ariespublication | a383154xPUB392 | |
local.type.status | Published Version | |
local.contributor.affiliation | Potter, Toby, The University of Western Australia | |
local.contributor.affiliation | Staveley-Smith, Lister, University of Western Australia | |
local.contributor.affiliation | Reville, Brian, Queen's University Belfast | |
local.contributor.affiliation | Ng, C-Y, The University of Hong Kong | |
local.contributor.affiliation | Bicknell, Geoffrey, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Sutherland, Ralph, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Wagner, Alexander, College of Physical and Mathematical Sciences, ANU | |
local.bibliographicCitation.issue | 2 | |
local.bibliographicCitation.startpage | 174/1 | |
local.bibliographicCitation.lastpage | 26 | |
local.identifier.doi | 10.1088/0004-637X/794/2/174 | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2015-12-09T10:52:25Z | |
local.identifier.scopusID | 2-s2.0-84920263491 | |
local.identifier.thomsonID | 000343085800078 | |
dcterms.accessRights | Open Access | |
Collections | ANU Research Publications |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
01_Potter_Multi-dimensional_simulations_2014.pdf | 2.92 MB | Adobe PDF | ||
02_Potter_Multi-dimensional_simulations_2014.pdf | 74.15 kB | Adobe PDF |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator