中文
相关论文

相关论文: Multiscale magnetic underdense regions on the sola…

200 篇论文

The study of spatial and temporal scales on which small magnetic structures (magnetic elements) are organized in the quiet Sun may be approached by determining how they are transported on the solar photosphere by convective motions. The…

太阳与恒星天体物理 · 物理学 2015-06-16 F. Giannattasio , D. Del Moro , F. Berrilli , L. Bellot Rubio , M. Gosic , D. Orozco Suarez

Regions of quiet Sun generally exhibit a complex distribution of small-scale magnetic field structures, which interact with the near-surface turbulent convective motions. Furthermore, it is probable that some of these magnetic fields are…

太阳与恒星天体物理 · 物理学 2015-06-18 Paul J. Bushby , Benjamin Favier

Turbulent convection efficiently transports energy up to the solar photosphere, but its multi-scale nature and dynamic properties are still not fully understood. Several works in the literature have investigated the emergence of patterns of…

太阳与恒星天体物理 · 物理学 2018-03-28 F. Giannattasio , F. Berrilli , G. Consolini , D. Del Moro , M. Gosic , L. Bellot Rubio

Aims: The interactions of velocity scales on the Sun's surface, from granulation to supergranulation are still not understood, nor are their interaction with magnetic fields. We thus aim at giving a better description of dynamics in the…

太阳与恒星天体物理 · 物理学 2009-02-16 T. Roudier , M. Rieutord , D. Brito , F. Rincon , J. M. Malherbe , N. Meunier , T. Berger , Z. Frank

In the recent papers, we introduced a method utilised to measure the flow field. The method is based on the tracking of supergranular structures. We did not precisely know, whether its results represent the flow field in the photosphere or…

天体物理学 · 物理学 2012-08-27 Michal Svanda , Mirek Klvana , Michal Sobotka , Alexander G. Kosovichev , Tom L. Duvall,

The large-scale magnetic pattern of the quiet sun is dominated by the magnetic network. This network, created by photospheric magnetic fields swept into convective downflows, delineates the boundaries of large scale cells of overturning…

太阳与恒星天体物理 · 物理学 2014-09-05 Francesco Berrilli , Stefano Scardigli , Dario Del Moro

The solar photosphere is the visible surface of the Sun, where many bright granules, surrounded by narrow dark intergranular lanes, are observed everywhere. The granular pattern is a manifestation of convective motion at the photospheric…

太阳与恒星天体物理 · 物理学 2017-02-15 T. Oba , Y. Iida , T. Shimizu

Solar granulation consists of dynamic convective plasma cells that rise from the solar interior to the surface. The interaction between these plasma cells and the Sun's magnetic field provides valuable insights into plasma dynamics near the…

太阳与恒星天体物理 · 物理学 2026-04-01 J. I. Campos Rozo , J. Jurčák , S. M. Díaz Castillo , M. van Noort

Below the scale of supergranules we find that cellular flows are present in the solar photosphere at two distinct size scales, approximately 2 Mm and 4 Mm, with distinct characteristic times. Simultaneously present in the flow is a…

天体物理学 · 物理学 2015-06-24 J. K. Lawrence , A. C. Cadavid , A. Ruzmaikin

Supergranulation is characterized by horizontally divergent flows with typical length scales of 32 Mm in the solar photosphere. Unlike granulation, the size of which is comparable to both the thickness of the radiative boundary layer and…

太阳与恒星天体物理 · 物理学 2016-10-05 Jean-Francois Cossette , Mark Peter Rast

Kilogauss-strength magnetic fields are often observed in intergranular lanes at the photosphere in the quiet Sun. Such fields are stronger than the equipartition field $B_e$, corresponding to a magnetic energy density that matches the…

天体物理学 · 物理学 2009-11-13 P. J. Bushby , S. M. Houghton , M. R. E. Proctor , N. O. Weiss

The atmosphere of the Sun is characterized by a complex interplay of competing physical processes: convection, radiation, conduction, and magnetic fields. The most obvious imprint of the solar convection and its overshooting in the low…

天体物理学 · 物理学 2009-10-20 S. Wedemeyer-Böhm , A. Lagg , Å. Nordlund

Here we review the recent progress made in the detection, examination, characterisation and interpretation of oscillations manifesting in small-scale magnetic elements in the solar photosphere. This region of the Sun's atmosphere is…

太阳与恒星天体物理 · 物理学 2016-03-09 David B. Jess , Gary Verth

The Sun provides us with the only spatially well-resolved astrophysical example of turbulent thermal convection. While various aspects of solar photospheric turbulence, such as granulation (one-Megameter horizontal scale), are well…

太阳与恒星天体物理 · 物理学 2017-03-14 F. Rincon , T. Roudier , A. A. Schekochihin , M. Rieutord

It is generally believed that sunspots are the emergent part of magnetic flux tubes in the solar interior. These tubes are created at the base of the convection zone and rise to the surface due to their magnetic buoyancy. The motion of…

太阳与恒星天体物理 · 物理学 2015-05-14 Franck Plunian , Graeme Sarson , Rodion Stepanov

Surface granulation of the Sun is primarily a consequence of thermal transport in the outer 1 % of the radius. Its typical scale of about 1 - 2 Mm is set by the balance between convection, free-streaming radiation, and the strong density…

太阳与恒星天体物理 · 物理学 2015-06-18 Shravan M. Hanasoge , Katepalli R. Sreenivasan

Magneto-convection simulations on meso-granule and granule scales near the solar surface are used to study small scale dynamo activity, the emergence and disappearance of magnetic flux tubes, and the formation and evolution of micropores.…

天体物理学 · 物理学 2007-05-23 Robert F. Stein , Aake Nordlund

Multiscale topological complexity of solar magnetic field is among the primary factors controlling energy release in the corona, including associated processes in the photospheric and chromospheric boundaries. We present a new approach for…

太阳与恒星天体物理 · 物理学 2015-06-03 Vadim M. Uritsky , Joseph M. Davila

The differential rotation of the sun, as deduced from helioseismology, exhibits a prominent radial shear layer near the top of the convection zone wherein negative radial gradients of angular velocity are evident in the low- and…

天体物理学 · 物理学 2009-11-07 M. L. DeRosa , P. A. Gilman , J. Toomre

The Sun features on its surface typical flow patterns called the granulation, mesogranulation, and supergranulation. These patterns arise due to convective flows transporting energy from the interior of the Sun to its surface. In this paper…

太阳与恒星天体物理 · 物理学 2019-02-20 J. I. Campos Rozo , D. Utz , S. Vargas Dominguez , A. Veronig , T. Van Doorsselaere
‹ 上一页 1 2 3 10 下一页 ›