Laboratory analogue of a supersonic accretion column in a binary star system.
Astrophysical flows exhibit rich behaviour resulting from the interplay of different forms of energy-gravitational, thermal, magnetic and radiative. For magnetic cataclysmic variable stars, material from a late, main sequence star is pulled onto a highly magnetized (B>10 MG) white dwarf. The...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Nature Publishing Group
2016
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| _version_ | 1797057886305648640 |
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| author | Cross, J Gregori, G Foster, J Graham, P Bonnet-Bidaud, J Busschaert, C Charpentier, N Danson, C Doyle, H Drake, R Fyrth, J Gumbrell, E Koenig, M Krauland, C Kuranz, C Loupias, B Michaut, C Mouchet, M Patankar, S Skidmore, J Spindloe, C Tubman, E Woolsey, N Yurchak, R Falize, É |
| author_facet | Cross, J Gregori, G Foster, J Graham, P Bonnet-Bidaud, J Busschaert, C Charpentier, N Danson, C Doyle, H Drake, R Fyrth, J Gumbrell, E Koenig, M Krauland, C Kuranz, C Loupias, B Michaut, C Mouchet, M Patankar, S Skidmore, J Spindloe, C Tubman, E Woolsey, N Yurchak, R Falize, É |
| author_sort | Cross, J |
| collection | OXFORD |
| description | Astrophysical flows exhibit rich behaviour resulting from the interplay of different forms of energy-gravitational, thermal, magnetic and radiative. For magnetic cataclysmic variable stars, material from a late, main sequence star is pulled onto a highly magnetized (B>10 MG) white dwarf. The magnetic field is sufficiently large to direct the flow as an accretion column onto the poles of the white dwarf, a star subclass known as AM Herculis. A stationary radiative shock is expected to form 100-1,000 km above the surface of the white dwarf, far too small to be resolved with current telescopes. Here we report the results of a laboratory experiment showing the evolution of a reverse shock when both ionization and radiative losses are important. We find that the stand-off position of the shock agrees with radiation hydrodynamic simulations and is consistent, when scaled to AM Herculis star systems, with theoretical predictions. |
| first_indexed | 2024-03-06T19:42:40Z |
| format | Journal article |
| id | oxford-uuid:2133ed27-b8de-49af-b577-ff2cce93bfd9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:42:40Z |
| publishDate | 2016 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | oxford-uuid:2133ed27-b8de-49af-b577-ff2cce93bfd92022-03-26T11:32:08ZLaboratory analogue of a supersonic accretion column in a binary star system.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2133ed27-b8de-49af-b577-ff2cce93bfd9EnglishSymplectic Elements at OxfordNature Publishing Group2016Cross, JGregori, GFoster, JGraham, PBonnet-Bidaud, JBusschaert, CCharpentier, NDanson, CDoyle, HDrake, RFyrth, JGumbrell, EKoenig, MKrauland, CKuranz, CLoupias, BMichaut, CMouchet, MPatankar, SSkidmore, JSpindloe, CTubman, EWoolsey, NYurchak, RFalize, ÉAstrophysical flows exhibit rich behaviour resulting from the interplay of different forms of energy-gravitational, thermal, magnetic and radiative. For magnetic cataclysmic variable stars, material from a late, main sequence star is pulled onto a highly magnetized (B>10 MG) white dwarf. The magnetic field is sufficiently large to direct the flow as an accretion column onto the poles of the white dwarf, a star subclass known as AM Herculis. A stationary radiative shock is expected to form 100-1,000 km above the surface of the white dwarf, far too small to be resolved with current telescopes. Here we report the results of a laboratory experiment showing the evolution of a reverse shock when both ionization and radiative losses are important. We find that the stand-off position of the shock agrees with radiation hydrodynamic simulations and is consistent, when scaled to AM Herculis star systems, with theoretical predictions. |
| spellingShingle | Cross, J Gregori, G Foster, J Graham, P Bonnet-Bidaud, J Busschaert, C Charpentier, N Danson, C Doyle, H Drake, R Fyrth, J Gumbrell, E Koenig, M Krauland, C Kuranz, C Loupias, B Michaut, C Mouchet, M Patankar, S Skidmore, J Spindloe, C Tubman, E Woolsey, N Yurchak, R Falize, É Laboratory analogue of a supersonic accretion column in a binary star system. |
| title | Laboratory analogue of a supersonic accretion column in a binary star system. |
| title_full | Laboratory analogue of a supersonic accretion column in a binary star system. |
| title_fullStr | Laboratory analogue of a supersonic accretion column in a binary star system. |
| title_full_unstemmed | Laboratory analogue of a supersonic accretion column in a binary star system. |
| title_short | Laboratory analogue of a supersonic accretion column in a binary star system. |
| title_sort | laboratory analogue of a supersonic accretion column in a binary star system |
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