Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-25T04:33:41.810Z Has data issue: false hasContentIssue false
  • English
  • Français

Clues to the origin and properties of magnetic white dwarfs

Published online by Cambridge University Press:  09 October 2020

Adela Kawka Open the ORCID record for Adela Kawka [Opens in a new window]
Adela Kawka*
Affiliation:
International Centre for Radio Astronomy Research - Curtin University GPO Box U1987, Perth, WA6845, Australia email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A significant fraction of white dwarfs possess a magnetic field with strengths ranging from a few kG up to about 1000 MG. However, the incidence of magnetism varies when the white dwarf population is broken down into different spectral types providing clues on the formation of magnetic fields in white dwarfs. Several scenarios for the origin of magnetic fields have been proposed from a fossil field origin to dynamo generation at various stages of evolution. Offset dipoles are often assumed sufficient to model the field structure, however time-resolved spectropolarimetric observations have revealed more complex structures such as magnetic spots or multipoles. Surface mapping of these field structures combined with measured rotation rates help distinguish scenarios involving single star evolution from other scenarios involving binary interactions. I describe key observational properties of magnetic white dwarfs such as age, mass, and field strength, and confront proposed formation scenarios with these properties.

Keywords

white dwarfsstars: magnetic fieldsstars: atmospheres
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S357: White Dwarfs as Probes of Fundamental Physics: Tracers of Planetary, Stellar and Galactic Evolution , October 2019 , pp. 60 - 74
Copyright
© International Astronomical Union 2020

References

Alam, S. et al. 2015, ApJS, 219, 12CrossRefGoogle Scholar
Al-Hujaj, O.-A. & Schmelcher, P. 2003, PhRvA, 68, 053403Google Scholar
Angel, J. R. P., Borra, E. F., Landstreet, J. D., et al. 1981, ApJS, 45, 457CrossRefGoogle Scholar
Angel, J. R. P. & Landstreet, J. D. 1971, ApJ Letters, 164, L15CrossRefGoogle Scholar
Angel, J. R. P. & Landstreet, J. D. 1974, ApJ, 191, 457CrossRefGoogle Scholar
Appenzeller, I. et al. 1998, Msngr, 94, 1Google Scholar
Aurière, M. et al. 2007, A&A, 475, 1053Google Scholar
Babcock, H. W. 1947, ApJ, 105 105CrossRefGoogle Scholar
Bagnulo, S. & Landstreet, J. D. 2019, A&A, 630, A65Google Scholar
Barstow, M. A., Jordan, S., O’Donoghue, D., Burleigh, M. R., Napiwotzki, R., Harrop-Allin, M. K., et al. 1995, MNRAS, 277, 971CrossRefGoogle Scholar
Becken, W. & Schmelcher, P. 2001, PhRvA, 63, 053412Google Scholar
Bédard, A., Bergeron, P., Fontaine, G., et al. 2017, ApJ, 848, 11CrossRefGoogle Scholar
Benvenuto, O. G. & Althaus, L. G. 1999, MNRAS, 303, 30CrossRefGoogle Scholar
Berdyugina, S. V., Berdyugin, A. V., Piirola, V., et al. 2007, PhRvL, 99, 091101Google Scholar
Blackett, P. M. S. 1947, Nature, 159, 658CrossRefGoogle Scholar
Blouin, S., Dufour, P., Thibeault, C., Allard, N. F., et al. 2019, ApJ, 878, 63CrossRefGoogle Scholar
Braithwaite, J. & Spruit, H. C. 2004, Nature, 431, 819CrossRefGoogle Scholar
Briggs, G. P., Ferrario, L., Tout, C. A., Wickramasinghe, D. T., Hurley, J. R., et al. 2015, MNRAS, 447, 1713CrossRefGoogle Scholar
Briggs, G. P., Ferrario, L., Tout, C. A., Wickramasinghe, D. T., et al. 2018, MNRAS, 478, 899CrossRefGoogle Scholar
Brinkworth, C. S., Burleigh, M. R., Lawrie, K., Marsh, T. R., Knigge, C., et al. 2013, ApJ, 773, 47CrossRefGoogle Scholar
Brinkworth, C. S., Marsh, T. R., Morales-Rueda, L., Maxted, P. F. L., Burleigh, M. R., Good, S. A., et al. 2005, MNRAS, 357, 333CrossRefGoogle Scholar
Burleigh, M. R., Jordan, S., Schweizer, W., et al. 1999, ApJ Letters, 510, L37CrossRefGoogle Scholar
Coutu, S., Dufour, P., Bergeron, P., Blouin, S., Loranger, E., Allard, N. F., Dunlap, B. H., et al. 2019, ApJ, 885, 74CrossRefGoogle Scholar
D’Antona, F. & Mazzitelli, I. 1975, A&A, 42, 127Google Scholar
Dobbie, P. D. et al. 2012, MNRAS, 421, 202Google Scholar
Donati, J.-F., Catala, C., Landstreet, J. D., Petit, P., et al. 2006, ASP Conf. Ser. Vol. 358, 362Google Scholar
Dufour, P., Liebert, J., Fontaine, G., Behara, N., et al. 2007, Nature, 450, 522CrossRefGoogle Scholar
Dufour, P., Béland, S., Fontaine, G., Chayer, P., Bergeron, P., et al. 2011, ApJ Letters, 733, L19CrossRefGoogle Scholar
Dufour, P., Fontaine, G., Liebert, J., Schmidt, G. D., Behara, N., et al. 2008, ApJ, 683, 978CrossRefGoogle Scholar
Dufour, P., Vornanen, T., Bergeron, P., Fontaine, G., Berdyugin, A., et al. 2013, ASP Conf. Ser. Vol. 469, 167Google Scholar
Dunlap, B. H., Barlow, B. N., Clemens, J. C., et al. 2010, ApJ Letters, 720, L159CrossRefGoogle Scholar
Dunlap, B. H. & Clemens, J. C. 2015, ASP Conf. Ser. Vol. 493, 547Google Scholar
Euchner, F., Jordan, S., Beuermann, K., Reinsch, K., Gänsicke, B. T., et al. 2006, A&A, 451, 671Google Scholar
Farihi, J., Dufour, P., Napiwotzki, R., Koester, D., et al. 2011, MNRAS, 413, 2559CrossRefGoogle Scholar
Ferrario, L., de Martino, D., Gänsicke, B. T., et al. 2015, SSRv, 191, 111Google Scholar
Ferrario, L., Vennes, S., Wickramasinghe, D. T., Bailey, J. A., Christian, D. J., et al. 1997, MNRAS, 292, 205CrossRefGoogle Scholar
Ferrario, L., Wickramasinghe, D., Kawka, A., et al. 2019, AdSpR, in pressGoogle Scholar
Fontaine, G., Brassard, P., Charpinet, S., Randall, S. K., Van Grootel, V., et al. 2013, ASP Conf. Ser. Vol. 479, 211Google Scholar
Garca-Berro, E. et al. 2012, ApJ, 749, 25CrossRefGoogle Scholar
Gentile Fusillo, N. P., Tremblay, P.-E., Jordan, S., Gänsicke, B. T., Kalirai, J. S., Cummings, J., et al. 2018, MNRAS, 473, 3693CrossRefGoogle Scholar
González-Férez, R. & Schmelcher, P. 2003, EPJD, 23, 189CrossRefGoogle Scholar
Greenstein, J. L. 1969, ApJ, 158, 281CrossRefGoogle Scholar
Hermes, J. J. et al. 2017, ApJS, 232, 23CrossRefGoogle Scholar
Herzberg, G. 1945, Atomic Spectra and Atomic Structure, New York: DoverGoogle Scholar
Holberg, J. B., Oswalt, T. D., Sion, E. M., Barstow, M. A., Burleigh, M. R., et al. 2013, MNRAS, 435, 2077CrossRefGoogle Scholar
Hollands, M. A. 2017, PhD Thesis, Univ. WarwickGoogle Scholar
Hollands, M. A., Gänsicke, B. T., Koester, D., et al. 2015, MNRAS, 450, 681CrossRefGoogle Scholar
Hollands, M. A., Tremblay, P.-E., Gänsicke, B. T., Gentile-Fusillo, N. P., Toonen, S., et al. 2018, MNRAS, 480, 3942CrossRefGoogle Scholar
Isern, J., Garca-Berro, E., Külebi, B., Lorén-Aguilar, P., et al. 2017, ApJ Letters, 836, L28CrossRefGoogle Scholar
Jordan, S., Schmelcher, P., Becken, W., Schweizer, W., et al. 1998, A&A, 336, L33Google Scholar
Kawka, A. 2018, CoSka, 48, 228Google Scholar
Kawka, A. & Vennes, S. 2004, Proc. IAU Symp. 224, 879CrossRefGoogle Scholar
Kawka, A. & Vennes, S. 2012, MNRAS, 425, 1394CrossRefGoogle Scholar
Kawka, A. & Vennes, S. 2014, MNRAS, 439, L90CrossRefGoogle Scholar
Kawka, A., Vennes, S., Ferrario, L., et al. 2020, MNRAS, 491, L40Google Scholar
Kawka, A., Vennes, S., Ferrario, L., Paunzen, E., et al. 2019, MNRAS, 482, 5101CrossRefGoogle Scholar
Kawka, A., Vennes, S., Schmidt, G. D., Wickramasinghe, D. T., Koch, R., et al. 2007, ApJ, 654, 499CrossRefGoogle Scholar
Kemic, S. B. 1974, JILA Pub. 1154Google Scholar
Kemic, S. B. 1975, Ap&SS, 36, 459Google Scholar
Kemp, J. C., Swedlund, J. B., Landstreet, J. D., Angel, J. R. P., et al. 1970, ApJ (Letters), 161, L77Google Scholar
Kepler, S. O. et al. 2013, MNRAS, 429, 2934CrossRefGoogle Scholar
Kissin, Y. & Thompson, C., 2015, ApJ, 809, 108CrossRefGoogle Scholar
Landi Degl’Innocenti, E. & Landolfi, M., 2004, Polarization in spectral lines, Vol. 307, om Astrophysics and Space Library, Kluwer Academic Publishers, DordrechtCrossRefGoogle Scholar
Landstreet, J. D. & Angel, J. R. P. 1971, ApJ Letters, 165, L67CrossRefGoogle Scholar
Landstreet, J. D. & Bagnulo, S. 2019, A&A, 623, A46Google Scholar
Landstreet, J. D. & Bagnulo, S. 2019, A&A, 628, A1Google Scholar
Landstreet, J. D., Bagnulo, S., Valyavin, G. G., Fossati, L., Jordan, S., Monin, D., Wade, G. A., et al. 2012, A&A, 545, A30Google Scholar
Landstreet, J. D., Bagnulo, S., Valyavin, G., Valeev, A. F., et al. 2017, A&A, 607, A92Google Scholar
Liebert, J., Angel, J. R. P., Stockman, H. S., Beaver, E. A., et al. 1978, ApJ, 225, 181CrossRefGoogle Scholar
Liebert, J., Ferrario, L., Wickramasinghe, D. T., Smith, P. S., et al. 2015, ApJ, 804, 93CrossRefGoogle Scholar
Liebert, J. & Sion, E. M. 1979, ApL, 20, 53Google Scholar
Lindegren, L., et al. 2018, A&A, 616, A2Google Scholar
Maxted, P. F. L., Ferrario, L., Marsh, T. R., Wickramasinghe, D. T., et al. 2000, MNRAS, 315, L41CrossRefGoogle Scholar
Nordhaus, J., Wellons, S., Spiegel, D. S., Metzger, B. D., Blackman, E. G., et al. 2011, PNAS, 108, 3135CrossRefGoogle Scholar
Pelletier, C., Fontaine, G., Wesemael, F., Michaud, G., Wegner, G., et al. 1986, ApJ, 307, 242CrossRefGoogle Scholar
Potter, A. T. & Tout, C. A. 2010, MNRAS, 402, 1072CrossRefGoogle Scholar
Putney, A. 1997, ApJS, 112, 527CrossRefGoogle Scholar
Rebassa-Mansergas, A. et al. 2016, MNRAS, 458, 3808CrossRefGoogle Scholar
Reid, I. N., Liebert, J., Schmidt, G. D., et al. 2001, ApJ Letters, 550, L61CrossRefGoogle Scholar
Ruffini, N. J. & Casey, A. R. 2019, MNRAS, 489, 420CrossRefGoogle Scholar
Ryabchikova, T., Piskunov, N., Kurucz, R. L., Stempels, H. C., Heiter, U., Pakhomov, Y., Barklem, P. S., et al. 2015, PhyS, 90, 054005Google Scholar
Schimeczek, C. & Wunner, G. 2014, ApJS, 212, 26CrossRefGoogle Scholar
Schmidt, G. D. & Smith, P. S. 1994, ApJ (Letters), 423, L63CrossRefGoogle Scholar
Schmidt, G. D. & Smith, P. S. 1995, ApJ, 448, 305CrossRefGoogle Scholar
Schmidt, G. D., Liebert, J., Harris, H. C., Dahn, C. C., Leggett, S. K., et al. 1999, ApJ, 512, 916CrossRefGoogle Scholar
Swedlund, J. B., Wolstencroft, R. D., Michalsky, J. J., Kemp, J. C., et al. 1974, ApJ Letters, 187, L121CrossRefGoogle Scholar
Tout, C. A., Wickramasinghe, D. T., Ferrario, L., et al. 2004, MNRAS, 355, L13CrossRefGoogle Scholar
Tout, C. A., Wickramasinghe, D. T., Liebert, J., Ferrario, L., Pringle, J. E., et al. 2008, MNRAS, 387, 897CrossRefGoogle Scholar
Tremblay, P.-E., Cukanovaite, E., Gentile Fusillo, N. P., Cunningham, T., Hollands, M. A., et al. 2019, MNRAS, 482, 5222CrossRefGoogle Scholar
Tremblay, P.-E. et al. 2015, ApJ, 812, 19CrossRefGoogle Scholar
Valyavin, G. & Fabrika, S. 1999, ASP Conf. Ser. Vol. 169, 206Google Scholar
Valyavin, G., Wade, G. A., Bagnulo, S., Szeifert, T., Landstreet, J. D., Han, I., Burenkov, A., et al. 2008, ApJ, 683, 466CrossRefGoogle Scholar
Valyavin, G. et al. 2014, Nature, 515, 88CrossRefGoogle Scholar
Vennes, S. 1999, ApJ, 525, 995CrossRefGoogle Scholar
Vennes, S., Schmidt, G. D., Ferrario, L., Christian, D. J., Wickramasinghe, D. T., Kawka, A., et al. 2003, ApJ, 593, 1040CrossRefGoogle Scholar
Vennes, S., Nemeth, P., Kawka, A., Thorstensen, J. R., Khalack, V., Ferrario, L., Alper, E. H., et al. 2017, Science, 357, 680CrossRefGoogle Scholar
Vornanen, T., Berdyugina, S. V., Berdyugin, A. V., Piirola, V., et al. 2010, ApJ Letters, 720, L52CrossRefGoogle Scholar
Vornanen, T., Berdyugina, S. V., Berdyugin, A., et al. 2013, A&A, 557, A38Google Scholar
Wickramasinghe, D. T. & Ferrario, L. 2005, MNRAS, 356, 1576CrossRefGoogle Scholar
Wickramasinghe, D. T. & Martin, B. 1986, MNRAS, 223, 323CrossRefGoogle Scholar
Wickramasinghe, D. T., Schmidt, G., Ferrario, L., & Vennes, S. 2002, MNRAS, 332, 29CrossRefGoogle Scholar
Wickramasinghe, D. T., Tout, C. A., Ferrario, L., et al. 2014, MNRAS, 437, 675CrossRefGoogle Scholar
Williams, K. A., Montgomery, M. H., Winget, D. E., Falcon, R. E., Bierwagen, M., et al. 2016, ApJ, 817, 27CrossRefGoogle Scholar