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相关论文: Small-scale bright point characteristics at high-r…

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Context. Bright points (BPs) are small-scale, magnetic features ubiquitous across the solar surface. Previously, we have observed and noted their properties for quiet Sun regions. Here, we determine the dynamic properties of BPs using…

太阳与恒星天体物理 · 物理学 2014-07-02 Peter H. Keys , Mihalis Mathioudakis , David B. Jess , Duncan H. Mackay , Francis P. Keenan

We present results of two-hour non-interrupted observations of solar granulation obtained under excellent seeing conditions with the largest aperture ground-based solar telescope - the New Solar Telescope (NST) - of Big Bear Solar…

太阳与恒星天体物理 · 物理学 2015-03-17 Valentyna Abramenko , Vasyl Yurchyshyn , Philip Goode , Ali Kilcik

The sub-arcsec bright points (BP) associated with the small scale magnetic fields in the lower solar atmosphere are advected by the evolution of the photospheric granules. We measure various quantities related to the horizontal motions of…

太阳与恒星天体物理 · 物理学 2012-05-28 LP. Chitta , A. A. van Ballegooijen , L. Rouppe van der Voort , E. E. DeLuca , R. Kariyappa

Bright points (BPs) are manifestations of small magnetic elements in the solar photosphere. Their brightness contrast not only gives insight into the thermal state of the photosphere (and chromosphere) in magnetic elements, but also plays…

Magnetic Bright Points (MBPs) are among the smallest observable objects on the solar photosphere. A combination of G-band observations and numerical simulations is used to determine their area distribution. An automatic detection algorithm,…

太阳与恒星天体物理 · 物理学 2015-05-19 P. J. Crockett , M. Mathioudakis , D. B. Jess , S. Shelyag , F. P. Keenan , D. J. Christian

Bright points (BPs) are ubiquitous, small-scale energetic events with multithermal signatures, typically observed in the chromosphere and linked to both photospheric structure and coronal composition. Their evolution is influenced by…

太阳与恒星天体物理 · 物理学 2025-06-25 Llŷr Humphries , Huw Morgan , David Kuridze

We have investigated properties of photospheric Bright Points (BPs) observed in an Active Region during its decay phase and in a quiet Sun region. We have analyzed two sets of photospheric observations taken with IBIS (Interferometric…

太阳与恒星天体物理 · 物理学 2010-11-23 S. Criscuoli , D. Del Moro , F. Giorgi , P. Romano , F. Berrilli , I. Ermolli , B. Viticchié , F. Zuccarello

Bright points (BPs) in the solar photosphere are radiative signatures of magnetic elements described by slender flux tubes located in the darker intergranular lanes. They contribute to the ultraviolet (UV) flux variations over the solar…

High cadence, multi-wavelength observations and simulations are employed for the analysis of solar photospheric magnetic bright points (MBPs) in the quiet Sun. The observations were obtained with the Rapid Oscillations in the Solar…

太阳与恒星天体物理 · 物理学 2015-06-11 P. H. Keys , M. Mathioudakis , D. B. Jess , S. Shelyag , D. J. Christian , F. P. Keenan

Six high-resolution TiO-band image sequences from the New Vacuum Solar Telescope (NVST) are used to investigate the properties of intergranular bright points (igBPs). We detect the igBPs using a Laplacian and morphological dilation…

太阳与恒星天体物理 · 物理学 2016-05-25 Kai-Fan Ji , Jian-ping Xiong , Yong-yuan Xiang , Song Feng , Hui Deng , Feng Wang , Yun-Fei Yang

On the basis of observations of solar granulation obtained with the New Solar Telescope (NST) of Big Bear Solar Observatory, we explored proper motion of bright points (BPs) in a quiet sun area, a coronal hole, and an active region plage.…

太阳与恒星天体物理 · 物理学 2011-11-21 V. I. Abramenko , V. Carbone , V. Yurchyshyn , P. R. Goode , R. F. Stein , F. Lepreti , V. Capparelli , A. Vecchio

Small-scale magnetic fields in the solar photosphere can be identified in high-resolution magnetograms or in the G-band as magnetic bright points (MBPs). Rapid motions of these fields can cause magneto-hydrodynamical waves and can also lead…

太阳与恒星天体物理 · 物理学 2015-05-14 D. Utz , A. Hanslmeier , R. Muller , A. Veronig , J. Rybák , H. Muthsam

Magnetic elements on the quiet sun are buffeted by convective flows that cause lateral motions on timescales of minutes. The magnetic elements can be observed as bright points (BPs) in the G band at 4305 {\AA}. We present observations of…

天体物理学 · 物理学 2009-11-07 P. Nisenson , A. A. van Ballegooijen , A. G. de Wijn , P. Sutterlin

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…

By use of the high-resolution spectral data and the broadband imaging obtained with the Goode Solar Telescope at the Big Bear Solar Observatory on 2013 June 6, the spectra of three typical photospheric bright points (PBPs) have been…

太阳与恒星天体物理 · 物理学 2020-07-21 Q. Hao , C. Fang , M. D. Ding , Z. Li , W. Cao

Context. Magnetic Bright Points (MBPs) are small-scale magnetic features in the solar photosphere. They may be a possible source of coronal heating by rapid footpoint motions that cause magnetohydrodynamical waves. The number and size…

太阳与恒星天体物理 · 物理学 2014-11-20 D. Utz , A. Hanslmeier , C. Möstl , R. Muller , A. Veronig , H. Muthsam

High resolution G-band images of the interior of a supergranulation cell show ubiquitous Bright Points (some 0.3 BPs per Mm^2). They are located in intergranular lanes and often form chains of elongated blobs whose smallest dimension is at…

天体物理学 · 物理学 2009-11-10 J. Sanchez Almeida , I. Marquez , J. A. Bonet , I. Dominguez Cerdena , R. Muller

We present a visual determination of the number of bright points (BPs) existing in the quiet Sun, which are structures though to trace intense kG magnetic concentrations. The measurement is based on a 0.1 arcsec angular resolution G-band…

太阳与恒星天体物理 · 物理学 2015-03-16 J. Sanchez Almeida , J. A. Bonet , B. Viticchie , D. Del Moro

We aim to improve our picture of the low chromosphere in the quiet-Sun internetwork by investigating the intensity, horizontal velocity, size and lifetime variations of small bright points (BPs; diameter smaller than 0.3 arcsec) observed in…

太阳与恒星天体物理 · 物理学 2013-01-29 S. Jafarzadeh , S. K. Solanki , A. Feller , A. Lagg , A. Pietarila , S. Danilovic , T. L. Riethmüller , V. Martínez Pillet

Using high-resolution transition region (TR) observations taken by the Interface Region Imaging Spectrograph (IRIS) mission, Tian et al. (2014b) revealed numerous short-lived subarcsecond bright dots (BDs) above sunspots (mostly located in…

太阳与恒星天体物理 · 物理学 2016-10-05 Na Deng , Vasyl Yurchyshyn , Hui Tian , Lucia Kleint , Chang Liu , Yan Xu , Haimin Wang
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