In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no. 2
E. Alecian - G.a. Wade - C. Catala - C. Folsom - J. Grunhut - J.-F Donati - P. Petit - S. Bagnulo - S.c. Marsden - J. Ramirez - J.d. Landstreet - T. Boehm - J.-C. Bouret - J. Silvester
Detaily:
Rok, strany: 2008, 235 - 244
Kľúčové slová:
stars: pre-main sequence, stars: Herbig, stars: magnetic fields, techniques: spectropolarimetry
URL originálneho zdroja: http://www.astro.sk/caosp/Eedition/Abstracts/2008/Vol_38/No_2/pp235-244_abstract.html
O článku:
Today, one of the greatest challenges concerning the Ap/Bp stars is to
understand the origin of their slow rotation and their magnetic fields. The
favoured hypothesis for the latter is the fossil field, which implies that the magnetic
fields subsist throughout the different evolutionary phases, and in particular
during the pre-main sequence phase. The existence of magnetic fields at the pre-main
sequence phase is also required to explain the slow rotation of Ap/Bp stars.
However, until recently, essentially no information was available about the
magnetic properties of intermediate-mass pre-main sequence stars, the
so-called Herbig Ae/Be stars. The new high-resolution spectropolarimeter
ESPaDOnS, installed in 2005 at the Canada-France-Hawaii telescope, provided
the capability necessary to perform surveys of the Herbig Ae/Be stars in
order to investigate their magnetism and rotation. These investigations have
resulted in the detection and/or confirmation of magnetic fields in 8 Herbig
Ae/Be stars, ranging in mass from 2 to nearly 15 solar masses. In this
contribution we will present the results of our survey, as well as their
implications for the origin and evolution of the magnetic fields and
rotation.
Ako citovať:
ISO 690:
Alecian, E., Wade, G., Catala, C., Folsom, C., Grunhut, J., Donati, J., Petit, P., Bagnulo, S., Marsden, S., Ramirez, J., Landstreet, J., Boehm, T., Bouret, J., Silvester, J. 2008. Magnetism in pre-MS intermediate-mass stars and the fossil field hypothesis. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 38, no.2, pp. 235-244. 1335-1842.
APA:
Alecian, E., Wade, G., Catala, C., Folsom, C., Grunhut, J., Donati, J., Petit, P., Bagnulo, S., Marsden, S., Ramirez, J., Landstreet, J., Boehm, T., Bouret, J., Silvester, J. (2008). Magnetism in pre-MS intermediate-mass stars and the fossil field hypothesis. Contributions of the Astronomical Observatory Skalnaté Pleso, 38(2), 235-244. 1335-1842.