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相关论文: Strength distribution of solar magnetic fields in …

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The motion of faint propagating disturbances (PD) in the solar corona reveals an intricate structure which must be defined by the magnetic field. Applied to quiet Sun observations by the Atmospheric Imaging Assembly (AIA)/Solar Dynamics…

太阳与恒星天体物理 · 物理学 2022-07-20 Huw Morgan , Marianna Korsos

The Mg I b$_2$ line at 5173 \r{A} is primarily magnetically sensitive to heights between the mid photosphere and the low chromosphere, a region that has not been sufficiently explored in the solar atmosphere but is crucial for understanding…

太阳与恒星天体物理 · 物理学 2025-03-18 A. L. Siu-Tapia , L. R. Bellot Rubio , D. Orozco Suárez , R. Gafeira

High levels of horizontal magnetic flux have been reported in the quiet-Sun internetwork, often based on Stokes profile inversions. Here we introduce a new method for deducing the inclination of magnetic elements and use it to test magnetic…

太阳与恒星天体物理 · 物理学 2014-10-01 S. Jafarzadeh , S. K. Solanki , A. Lagg , L. R. Bellot Rubio , M. van Noort , A. Feller , S. Danilovic

Helioseismic techniques such as ring-diagram analysis have often been used to determine the subsurface structural differences between solar active and quiet regions. Results obtained by inverting the frequency differences between the…

天体物理学 · 物理学 2009-11-13 Chia-Hsien Lin , Sarbani Basu , Linghuai Li

The results of 2D MHD simulations of solar magnetogranulation are used to analyze the horizontal magnetic fields and the response of the synthesized Stokes profiles of the FeI 1564.85 nm line to the magnetic fields. Selected 1.5-h series of…

太阳与恒星天体物理 · 物理学 2009-06-16 V. A. Sheminova

Low-m inertial modes have been recently discovered in the Sun's high-latitude regions. In this study, we characterize the observational properties of the m = 1 mode by analyzing time-distance subsurface flow maps. Synoptic flow maps,…

太阳与恒星天体物理 · 物理学 2025-06-25 Boyang Ding , Junwei Zhao , Ruizhu Chen , Matthias Waidele , Sushant S. Mahajan , Oana Vesa

Some recent investigations of spectropolarimetric observations of the Zeeman effect in the Fe I lines at 630 nm carried out with the Hinode solar space telescope have concluded that the strength of the magnetic field vector in the…

太阳与恒星天体物理 · 物理学 2009-08-05 A. Asensio Ramos

Magnetic bright points are small-scale magnetic elements ubiquitous across the solar disk, with the prevailing theory suggesting that they form due to the process of convective collapse. Employing a unique full Stokes spectropolarimetric…

The observed splittings of solar oscillation frequencies can be employed to separate the effects of internal solar rotation and to estimate the contribution from a large-scale magnetic field or any latitude-dependent thermal perturbation…

天体物理学 · 物理学 2007-05-23 H. M. Antia , S. M. Chitre , M. J. Thompson

High-dispersion, archival spectra of magnetic Ap stars with resolved Zeeman components in Stokes I are used to derive a simple relation that can be utilised to estimate the mean surface field strengths of stars with v sin i > 10 km/s. For…

太阳与恒星天体物理 · 物理学 2014-09-05 J. D. Bailey

We review (i) observations and numerical simulations of vortical flows in the solar atmosphere and (ii) measurements of the horizontal magnetic field in quiet Sun regions. First, we discuss various manifestations of vortical flows and…

太阳与恒星天体物理 · 物理学 2012-02-21 O. Steiner , R. Rezaei

The analysis of near infrared spectropolarimetric data at the internetwork at different regions on the solar surface could offer constraints to reject current modeling of these quiet areas. We present spectro-polarimetric observations of…

天体物理学 · 物理学 2009-11-13 M. Jesus Martinez Gonzalez , A. Asensio Ramos , A. Lopez Ariste , R. Manso Sainz

Different analyses of identical Hinode SOT/SP data of quiet-sun magnetic fields have in the past led to contradictory answers to the question of whether the angular distribution of field vectors is preferentially horizontal or vertical.…

太阳与恒星天体物理 · 物理学 2015-06-16 Jan Stenflo

Proving the magnetic configuration of solar spicules has hitherto been difficult due to the lack of spatial resolution and image stability during off-limb ground-based observations. We report spectropolarimetric observations of spicules…

太阳与恒星天体物理 · 物理学 2015-04-21 D. Orozco Suarez , A. Asensio Ramos , J. Trujillo Bueno

The properties of magnetic fields forming an extended plage region in AR 10953 were investigated. Stokes spectra of the Fe I line pair at 6302 \AA recorded by the spectropolarimeter aboard the Hinode satellite were inverted using the SPINOR…

太阳与恒星天体物理 · 物理学 2015-03-25 D. Buehler , A. Lagg , S. K. Solanki , M. van Noort

The longitudinal asymmetry of the photospheric magnetic field distribution is studied on the basis of the data of the Kitt Peak National Solar Observatory (synoptic maps for the period 1976 - 2016). The method of vector summing of magnetic…

太阳与恒星天体物理 · 物理学 2019-04-08 D. G. Baranov , E. S. Vernova , M. I. Tyasto , O. A. Danilova

We use images of high spatial and temporal resolution, obtained using both ground- and space-based instrumentation, to investigate the role magnetic field inclination angles play in the propagation characteristics of running penumbral waves…

太阳与恒星天体物理 · 物理学 2015-06-17 D. B. Jess , V. E. Reznikova , T. Van Doorsselaere , P. H. Keys , D. H. Mackay

We study the polar magnetism near an activity maximum when these regions change their polarity, from which it is expected that its magnetism should be less affected by the global field. To fully characterise the magnetic field vector, we…

太阳与恒星天体物理 · 物理学 2018-08-15 A. Pastor Yabar , M. J. Martínez González , M. Collados

We present test results on the simultaneous inversion of the Stokes profiles of the He I lines at 587.6 nm (D_3) and 1083.0 nm in prominences (90-deg scattering). We created datasets of synthetic Stokes profiles for the case of quiescent…

天体物理仪器与方法 · 物理学 2009-09-28 R. Casini , A. Lopez Ariste , F. Paletou , L. Leger

AIMS :The thermodynamic and magnetic field structure of the solar photosphere is analyzed by means of a novel 3-dimensional spectropolarimetric inversion and reconstruction technique. METHODS : On the basis of high-resolution,…

天体物理学 · 物理学 2008-03-10 T. A. Carroll , M. Kopf