Skip to content

Research at St Andrews

Magnetic support of stellar slingshot prominences

Research output: Contribution to journalArticle

DOI

Open Access permissions

Open

Author(s)

Rose F. P. Waugh, Moira M. Jardine

School/Research organisations

Abstract

We present models for the magnetic support of the ‘slingshot prominences’ observed in the coronae of rapidly rotating stars. We calculate mechanical equilibria of loops in a spherical geometry. Prominence-forming loops are found first for dipolar and quadrupolar stellar fields that are fully closed. Equilibria are then found within the stellar wind for a dipolar field that becomes open beyond a given radius. We identify two physical processes that may produce gaps in the distribution of prominence heights: the location of this opening radius, and the behaviour of the buoyancy force. The buoyancy may differ from one prominence-bearing loop to another if they are at different temperatures, thus potentially smearing out any gap in observed height distributions. We produce synthetic prominence distributions and compare to the observations of two well-observed stars: AB Doradus and Speedy Mic. The model recovers the more compact prominence distribution observed for Speedy Mic and reproduces better the overall shape of the height distributions for both stars when the opening radius is beyond the co-rotation radius.
Close

Details

Original languageEnglish
Pages (from-to)1513-1522
Number of pages9
JournalMonthly Notices of the Royal Astronomical Society
Volume483
Issue number2
Early online date25 Nov 2018
DOIs
Publication statusPublished - 21 Feb 2019

    Research areas

  • Stars: individual: AB Dor, Stars: low mass, Stars: magnetic field

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Slingshot prominences: coronal structure, mass-loss and spin-down

    Jardine, M., Cameron, A. C., Donati, J. -F. & Hussain, G. A. J., Jan 2020, In : Monthly Notices of the Royal Astronomical Society. 491, 3, p. 4076-4088 stz3173.

    Research output: Contribution to journalArticle

  2. MOVES - II. Tuning in to the radio environment of HD189733b

    Kavanagh, R. D., Vidotto, A. A., Ó. Fionnagáin, D., Bourrier, V., Fares, R., Jardine, M., Helling, C., Moutou, C., Llama, J. & Wheatley, P. J., Jun 2019, In : Monthly Notices of the Royal Astronomical Society. 485, 4, p. 4529–4538 10 p.

    Research output: Contribution to journalArticle

  3. Estimating magnetic filling factors from Zeeman–Doppler magnetograms

    See, V., Matt, S. P., Folsom, C. P., Saikia, S. B., Donati, J-F., Fares, R., Finley, A. J., Hébrard, É. M., Jardine, M. M., Jeffers, S. V., Lehmann, L. T., Marsden, S. C., Mengel, M. W., Morin, J., Petit, P., Vidotto, A. A. & Waite, I. A., 9 May 2019, In : Astrophysical Journal. 876, 2, 118.

    Research output: Contribution to journalArticle

  4. Slingshot prominence evolution for a solar-like star

    Villarreal D'Angelo, C., Jardine, M., Johnstone, C. P. & See, V., 1 May 2019, In : Monthly Notices of the Royal Astronomical Society. 485, 1, p. 1448-1453

    Research output: Contribution to journalArticle

  5. Observing the simulations: applying ZDI to 3D non-potential magnetic field simulations

    Lehmann, L. T., Hussain, G. A. J., Jardine, M. M., Mackay, D. H. & Vidotto, A. A., 11 Mar 2019, In : Monthly Notices of the Royal Astronomical Society. 483, 4, p. 5246–5266

    Research output: Contribution to journalArticle

Related by journal

  1. NGTS and WASP photometric recovery of a single-transit candidate from TESS

    Gill, S., Bayliss, D., Cooke, B. F., Wheatley, P. J., Nielsen, L. D., Lendl, M., McCormac, J., Bryant, E. M., Acton, J. S., Anderson, D. R., Belardi, C., Bouchy, F., Burleigh, M. R., Collier Cameron, A., Casewell, S. L., Chaushev, A., Goad, M. R., Günther, M. N., Hellier, C., Jackman, J. A. G. & 9 others, Jenkins, J. S., Moyano, M., Pollacco, D., Raynard, L., Smith, A. M. S., Tilbrook, R. H., Turner, O., Udry, S. & West, R. G., Jan 2020, In : Monthly Notices of the Royal Astronomical Society. 491, 2, p. 1548–1553 6 p.

    Research output: Contribution to journalArticle

  2. Slingshot prominences: coronal structure, mass-loss and spin-down

    Jardine, M., Cameron, A. C., Donati, J. -F. & Hussain, G. A. J., Jan 2020, In : Monthly Notices of the Royal Astronomical Society. 491, 3, p. 4076-4088 stz3173.

    Research output: Contribution to journalArticle

  3. Chandra reveals a possible ultrafast outflow in the super-Eddington Be/X-ray binary Swift J0243.6+6124

    van den Eijnden, J., Degenaar, N., Schulz, N. S., Nowak, M. A., Wijnands, R., Russell, T. D., Hernández Santisteban, J. V., Bahramian, A., Maccarone, T. J., Kennea, J. A. & Heinke, C. O., Aug 2019, In : Monthly Notices of the Royal Astronomical Society. 487, 3, p. 4355-4371

    Research output: Contribution to journalArticle

  4. A new formulation of the external field effect in MOND and numerical simulations of ultra-diffuse dwarf galaxies - application to NGC 1052-DF2 and NGC 1052-DF4

    Haghi, H., Kroupa, P., Banik, I., Wu, X., Zonoozi, A. H., Javanmardi, B., Ghari, A., Mueller, O., Dabringhausen, J. & Zhao, H., Aug 2019, In : Monthly Notices of the Royal Astronomical Society. 487, 2, p. 2441-2454 14 p.

    Research output: Contribution to journalArticle

  5. A re-establishing jet during an X-ray re-brightening of the Be/X-ray binary Swift J0243.6+6124

    van den Eijnden, J., Degenaar, N., Russell, T. D., Hernández Santisteban, J. V., Wijnands, R., Miller-Jones, J. C. A., Rouco Escorial, A. & Sivakoff, G. R., Mar 2019, In : Monthly Notices of the Royal Astronomical Society. 483, 4, p. 4628-4638

    Research output: Contribution to journalArticle

Related by journal

  1. Monthly Notices of the Royal Astronomical Society (Journal)

    Ineke De Moortel (Member of editorial board)
    1 Jan 2019 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  2. Monthly Notices of the Royal Astronomical Society (Journal)

    Carolin Villforth (Reviewer)
    2011 → …

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  3. Monthly Notices of the Royal Astronomical Society (Journal)

    Christiane Helling (Editor)
    2007 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  4. Monthly Notices of the Royal Astronomical Society (Journal)

    Andrew Collier Cameron (Editor)
    2005 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

  5. Monthly Notices of the Royal Astronomical Society (Journal)

    Duncan Hendry Mackay (Editor)
    2003 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

ID: 256915103

Top