MAGNETISM OF WHITE DWARFS (intermediate results of a survey for kilogauss magnetic fields in white dwarfs)

Автор(и)

  • G. Valyavin Korea Astronomy and Space Science Institute, 61-1, Whaam-Dong, Youseong-Gu, Taejeon, Republic of Korea 305-348; Special Astrophysical Observatory,Russian Academy of Sciences, Nizhnii Arkhyz, Karachai Cherkess Republic, 357147, Russia, Південна Корея
  • S. Bagnulo European Southern Observatory, Alonso de Cordova 3107, Santiago, Chile, Чилі
  • S. Fabrika Special Astrophysical Observatory,Russian Academy of Sciences, Nizhnii Arkhyz, Karachai Cherkess Republic, 357147, Russia, Російська Федерація
  • A. Reisenegger Departamento de Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile, Casilla 306, Santiago 22, Чилі
  • G. A. Wade Physics Department, Roual Military College of Canada, Kingston, Ontario, Canada, Канада
  • Inwoo Han Korea Astronomy and Space Science Institute, 61-1, Whaam-Dong, Youseong-Gu, Taejeon, Republic of Korea 305-348, Південна Корея
  • D. Monin Dominion Astrophysical Observatory, 5071, West Saanich Road, Victoria, British Columbia, V9E 2E7,Canada, Канада

DOI:

https://doi.org/10.18524/1810-4215.2005.18.98271

Ключові слова:

Stars, white dwarfs, subdwarfs, magnetic stars, stars, individual, WD1036 433, WD1647 591, WD1105-048.

Анотація

We shortly present intermidiate results of a survey for weak magnetic fields among degenerate stars (white dwarfs and hot subdwarf stars). Kilogauss upper limits of longitudinal magnetic fields are presented for several brightest DA white dwarfs and new candidates to magnetic degenerates are found. We discuss our findings in the frame of 25fractional incidence of white dwarf magnetism in the kilogauss region. The complete version of this presentation will be published in the Astrophysical Journal.

Посилання

Angel J.R.P., Borra E.F., Landstreet J.D.: 1981, ApJ Supplement, 45, 457.

Aznar Cuadrado R., Jordan S., Napiwotzki R., Schmid H.M., Solanki S.K., Mathys G.: 2004, A&A, 423, 1081.

Bagnulo S., Szeifert T., Wade G.A., Landstreet J.D., Mathys G. 2002, A. & A, 389, 191.

Elkin V.: 1996, A&A, 312L, 5.

Fabrika S.N., Valyavin G., : 1999, 11th. European Workhop on White Dwarfs, ASP Conf. Series, 196, 214. J.E. Solheim, E.G. Meistas ed.

Liebert J., Sion E.M.: 1979, Astrophysical Letters, 20, 53.

Liebert J., Bergeron P., Holberg J.B.: 2003, A. J., 125, 348.

Naydenov I.D., Valyavin G.G., Fabrika S.N., et al.: 2002, Bull. Spec. Astrophys. Obs., 53, 124.

Putney A.: 1999, 11th. European Workhop on White Dwarfs, ASP Conf. Series, 196, 195. J.E. Solheim, E.G. Meistas ed.

Schmidt G.D., Smith PS.: 1995, Ap. J., 448, 305.

Schmidt G.D., Grauer A.D.: 1997, Ap. J., 488, 827.

Valyavin G., Fabrika S.N.: 1999, 11th. European Workhop on White Dwarfs, ASP Conf. Series, 196, 206. J.E. Solheim, E.G. Meistas ed.

Valyavin G.G., Burlakova T.E., Fabrika S.N, Monin D.N.: 2003, Astronomy Reports, 47, 589.

Valyavin G., Bagnulo S., Monin D., Fabrika S., Lee B.-C., Galazutdinov G., Wade G., Burlakova T.: 2005, A.& A. , 439, 1099.

Wickramasinghe D.T., Ferrario Lilia: 2005, MNRAS, 356, 1576.

##submission.downloads##

Опубліковано

2017-04-10

Номер

Розділ

Статті