中文
相关论文

相关论文: Properties of G-band Bright Points derived from IB…

200 篇论文

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 the results from first spectropolarimetric observations of the solar photosphere acquired at the Dunn Solar Telescope with the Interferometric Bidimensional Spectrometer. Full Stokes profiles were measured in the Fe I 630.15 nm…

太阳与恒星天体物理 · 物理学 2009-07-22 B. Viticchié , D. Del Moro , F. Berrilli , L. Bellot Rubio , A. Tritschler

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

Bright small-scale magnetic elements found mainly in intergranular lanes at the solar surface are named bright points (BPs). They show high contrasts in Fraunhofer G-band observations and are described by nearly vertical slender flux tubes…

太阳与恒星天体物理 · 物理学 2017-02-15 T. L. Riethmüller , S. K. Solanki

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 present new results from first observations of the quiet solar photosphere performed through the Interferometric BIdimensional Spectrometer (IBIS) in spectropolarimetric mode. IBIS allowed us to measure the four Stokes parameters in the…

太阳与恒星天体物理 · 物理学 2015-05-19 B. Viticchié , D. Del Moro , S. Criscuoli , F. Berrilli

Bright points (BPs) are small-scale, dynamic features that are ubiquitous across the solar disc and are often associated with the underlying magnetic field. Using broadband photospheric images obtained with the Visible Broadband Imager at…

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

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…

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

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

We present simultaneous spectropolarimetric observations of four visible and three infrared spectral lines from the VTT (Tenerife), together with speckle-reconstructed filtergrams in the G band and the CaII H line core from the DOT (La…

天体物理学 · 物理学 2007-08-02 C. Beck , L. R. Bellot Rubio , R. Schlichenmaier , P. Suetterlin

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…

Coronal bright points (BPs) are small-scale luminous features seen in the solar corona. Quasi-periodic brightenings are frequently observed in the BPs and are generally linked with underneath magnetic flux changes. We study the dynamics of…

太阳与恒星天体物理 · 物理学 2015-05-05 Tanmoy Samanta , Dipankar Banerjee , Hui Tian

We determine the number density and area contribution of small-scale inter-granular calcium-II bright G-band structures in images of the quiet Sun as tracers of kilo-Gauss magnetic flux-concentrations. In a 149" x 117" G-band image of the…

太阳与恒星天体物理 · 物理学 2012-10-23 Burkart Bovelet , Eberhard Wiehr

Small-scale brightenigs are ubiquitous, dynamic and energetic phenomena found in the chromopshere. An advanced filter-detection algorithm applied to high-resolution observations from the Interface Region Imaging Spectrograph enables the…

太阳与恒星天体物理 · 物理学 2024-11-05 Llŷr Humphries , Huw Morgan , David Kuridze

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

A solar X-ray Bright point (BP) was observed with the SUMER-spectrograph of the SOHO-observatory. The data consist of four far-UV spectral lines formed between 2 10^4 - 6 10^5 K, with 2 arcsec spatial, 2.8 min temporal and 4 km/s spectral…

天体物理学 · 物理学 2009-11-07 O. Vilhu , J. Huovelin , S. Pohjolainen , J. Virtanen , W. Curdt

Context. High-resolution observations of the solar photosphere reveal the presence of fine structures, in particular the so-called magnetic bright points (MBPs), which are small-scale features associated with strong magnetic field regions…

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
‹ 上一页 1 2 3 10 下一页 ›