We present observations of magnetic fields of the very quiet Sun near disk center using the Spectro-Polarimeter of the Solar Optical Telescope aboard the Hinode satellite. These observations reveal for the first time the ubiquitous presence of horizontal magnetic fields in the internetwork regions. The horizontal fields are spatially distinct from
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Hinode Observations of Horizontal Quiet Sun Magnetic Flux and the ``Hidden Turbulent Magnetic Flux''Lites, Bruce et al.112007
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Homogeneity of image quality at the Roque de los Muchachos Observatory
Seeing statistics from several year-long site-testing campaigns carried out at different locations at the Roque de los Muchachos Observatory (ORM) are reviewed (this contribution contains results previously published by Munoz-Tunon et al. (1997) [Estudio de Sitio para el Gran Telescopio: Informe final; A&AS, 125, 183]). In particular, tests at the
Muñoz-Tuñon, C. et al.Advertised on:
111998 -
Homotopy of state orbits
Let M be a von Neumann algebra, f a faithful normal state and denote by M^f the fixed point algebra of the modular group of f. Let U_M and U_{M^f} be the unitary groups of M and M^f. In this paper we study the quotient U_M/U_{M^f} endowed with two natural topologies: the one induced by the usual norm of M (called here usual topology), and the one
Andruchow, E. et al.Advertised on:
111999 -
Horizontal flow fields in and around a small active region. The transition period between flux emergence and decay
Context. The solar magnetic field is responsible for all aspects of solar activity. Thus, emergence of magnetic flux at the surface is the first manifestation of the ensuing solar activity. Aims: Combining high-resolution and synoptic observations aims to provide a comprehensive description of flux emergence at photospheric level and of the growth
Verma, M. et al.Advertised on:
112016 -
Host Galaxies of Seyfert 1 and 2
Not Available
Perez Garcia, A. M. et al.Advertised on:
111996 -
Host galaxies of Seyfert 1 and 2.
Not Available
Pérez García, A. M. et al.Advertised on:
111996