Multiple, short-lived 'stellar prominences' on the O giant ξ Persei: a magnetic star?

Autor: Sudnik, N., Henrichs, H.F.

Publikováno v: Contributions of the Astronomical Observatory Skalnaté Pleso, 48(1), 305-306. Astronomical Institute, Slovak Academy of Sciences

We present strong evidence for a rotation period of 2.0406 d of the O giant ξ Persei, derived from the NIV λ1718 wind line in 12 yr of IUE data. We predict that ξ Per has a magnetic dipole field, with superposed variable magnetic prominences. Favo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::a291a0f1c8992fee34416b4b319ceed0
https://dare.uva.nl/personal/pure/en/publications/multiple-shortlived-stellar-prominences-on-the-o-giant--persei(c74e0e92-e61a-4d2f-b2ca-142e170755ee).html

Discovery of the magnetic field of the B1/B2V star σ Lupi

Autor: Henrichs, H.F., Kolenberg, K., Plaggenborg, B., Marsden, S.C., Waite, I.A., Landstreet, J., Grunhut, J., Oksala, M., Wade, G., Hoffman, J.L., Bjorkman, J., Whitney, B.

Publikováno v: Stellar Polarimetry: from Birth to Death: Madison, WI, USA, 27-30 June 2011, 90-93
STARTPAGE=90;ENDPAGE=93;TITLE=Stellar Polarimetry: from Birth to Death

In our search for new magnetic massive stars we use the strongest indirect indicator of a magnetic field in B stars, which is periodic variability of UV stellar wind lines occurring in a velocity range symmetric around zero. Our aim is to obtain foll

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fceb9a6781896511e3f1a82e61f4f97a
https://hdl.handle.net/11245/1.381819

Magnetism in massive stars

Autor: Henrichs, H.F.

Publikováno v: Publications de l'Observatoire Astronomique de Beograd, 91, 13-20

Stars with mass more than 8 solar masses end their lives as neutron stars, which we mostly observe as highly magnetized objects. Where does this magnetic field come from? Such a field could be formed during the collapse, or is a (modified) remnant of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::7421d18d0b5f28f2802fa7bb147a28bc
https://dare.uva.nl/personal/pure/en/publications/magnetism-in-massive-stars(abd00d65-863a-4422-9a6f-086b54cf8a27).html

Analysis of Magnetic field Geometry and Its Interaction with Circumstellar Environment of HD 57682 by the MiMeS Collaboration

Autor: Grunhut, J.H., Wade, G.A., Marcolino, W.L.F., Petit, V., Henrichs, H.F., Kudryavtsev, D.O., Romanyuk, I.I.

Publikováno v: Magnetic stars : proceedings of the International Conference, Nizhny Arkhyz 27 August-1 September 2010 = Магнитные звезды : Материалы международного совещания, пос. Нижний Архыз, 27 августа-1 сентября 2010, 473-475
STARTPAGE=473;ENDPAGE=475;TITLE=Magnetic stars : proceedings of the International Conference, Nizhny Arkhyz 27 August-1 September 2010 = Магнитные звезды : Материалы международного совещания, пос. Нижний Архыз, 27 августа-1 сентября 2010

We will review our recent analysis of magnetic properties of the O9IV star HD 57682, using spectropolarimetric observations obtained with the ESPaDOnS at the Canada-France-Hawaii telescope within the context of the Magnetism in Massive Stars (MiMeS)

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https://dare.uva.nl/personal/pure/en/publications/analysis-of-magnetic-field-geometry-and-its-interaction-with-circumstellar-environment-of-hd-57682-by-the-mimes-collaboration(55b1c5b1-807c-4c55-99ae-d2b875157713).html

Radio observations of candidate magnetic O stars

Autor: Schnerr, R.S., Rygl, K.L.J., van der Horst, A.J., Oosterloo, T.A., Miller-Jones, J.C.A., Henrichs, H.F., de Koter, A., Smith, L.J., Waters, L.B.F.M.

Publikováno v: Mass Loss from Stars and the Evolution of Stellar Clusters: proceedings of a workshop held at Lunteren, the Netherlands, 29 May-1 June 2006, 221-222
STARTPAGE=221;ENDPAGE=222;TITLE=Mass Loss from Stars and the Evolution of Stellar Clusters

A number of O stars are suspected to have (weak) magnetic fields because of the observed cyclical variability in their UV wind-lines. However, direct detections of these magnetic fields with optical spectropolarimetry have proven to be very difficult

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::1cdbcd4b855ad8b2b9a97e4b742871a3
https://dare.uva.nl/personal/pure/en/publications/radio-observations-of-candidate-magnetic-o-stars(555fb38a-8928-402a-9134-be1065d01e2c).html