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We report on the SDO/AIA and Hinode/EIS observations of a transient coronal loop. The loop brightens up in the same location after the disappearance of an arcade formed during a B8.9-class microflare three hours earlier. EIS captures this…

Constraining the properties of Population III (Pop III) stars will be very challenging because they reside in small galaxies at high redshift which will be difficult to directly detect. In this paper, we suggest that intensity mapping may…

宇宙学与河外天体物理 · 物理学 2015-07-01 Eli Visbal , Zoltan Haiman , Greg L. Bryan

Quiescent solar prominence fine structures are typically modelled as density enhancements, called threads, which occupy a fraction of a longer magnetic flux tube. The profile of the mass density along the magnetic field is however unknown…

太阳与恒星天体物理 · 物理学 2015-05-14 I. Arregui , R. Soler

Since the first reports of oscillations in prominences in 1930s there have been major theoretical and observational advances to understand the nature of these oscillatory phenomena leading to a whole new field of so called "prominence…

太阳与恒星天体物理 · 物理学 2014-11-20 D. Tripathi , H. Isobe , R. Jain

The Sun Watcher with Active Pixels and Image Processing (SWAP) EUV solar telescope on board the Project for On-Board Autonomy 2 (PROBA2) spacecraft has been regularly observing the solar corona in a bandpass near 17.4 nm since February…

太阳与恒星天体物理 · 物理学 2015-06-17 Daniel B. Seaton , Anik De Groof , Paul Shearer , David Berghmans , Bogdan Nicula

We report on the eclipsing of microwave flare emission by an eruptive prominence from a neighboring region as observed by the Nobeyama Radioheliograph at 17 GHz. The obscuration of the flare emission appears as a dimming feature in the…

太阳与恒星天体物理 · 物理学 2015-06-17 Nat Gopalswamy , Seiji Yashiro

Two large northern polar crown prominences that erupted on 2010 April 13 and 2010 August 1 were analysed using images obtained from the Extreme UltraViolet Imager on the twin Solar Terrestrial Relations Observatory spacecraft. Several…

太阳与恒星天体物理 · 物理学 2015-05-27 Anand D. Joshi , Nandita Srivastava

On 14 October 2014 the Sun Watcher with Active Pixels and Image Processing (SWAP) EUV solar telescope on-board the Project for On-Board Autonomy 2 (PROBA2) spacecraft observed an eruption that led to the formation of perhaps the largest…

太阳与恒星天体物理 · 物理学 2015-06-23 Matthew J. West , Daniel B. Seaton

Many prominences are supported by magnetic flux ropes. One important question is how we can determine whether the flux rope is weakly-twisted or strongly-twisted. In this paper, we attempted to check whether prominences supported by…

太阳与恒星天体物理 · 物理学 2022-11-09 J. H. Guo , Y. W. Ni , Y. H. Zhou , Y. Guo , B. Schmieder , P. F. Chen

Observations have shown that magnetohydrodynamic waves over a large frequency range are ubiquitous in solar prominences. The waves are probably driven by photospheric motions and may transport energy up to prominences suspended in the…

太阳与恒星天体物理 · 物理学 2016-07-13 Roberto Soler , Jaume Terradas , Ramon Oliver , Jose Luis Ballester

Multi-wavelength observations of prominence eruptions provide an opportunity to uncover the physical mechanism of the triggering and the evolution process of the eruption. In this paper, we investigated an erupting prominence on October 14,…

太阳与恒星天体物理 · 物理学 2020-10-07 Haiqing Xu , Jiangtao Su , Jie Chen , Guiping Ruan , Arun Kumar Awasthi , Hongqi Zhang , Mei Zhang , Kaifan Ji , Yuzong Zhang , Jiajia Liu

Solar prominences are cool and dense plasma structures floating in the hot solar corona. They are ubiquitous features in the solar atmosphere, but their formation mechanism is still unclear. Here we perform comprehensive fully…

太阳与恒星天体物理 · 物理学 2026-05-04 Lisa-Marie Zessner , Robert H. Cameron , Sami K. Solanki , Damien Przybylski

Observations of the Mg II h and k lines in solar prominences with IRIS reveal a wide range of line shapes from simple non-reversed profiles to typical double-peaked reversed profiles with many other complex line shapes possible. The…

太阳与恒星天体物理 · 物理学 2019-05-08 Peter James Levens , Nicolas Labrosse

Starting from a realistically sheared magnetic arcade connecting chromospheric, transition region to coronal plasma, we simulate the in-situ formation and sustained growth of a quiescent prominence in the solar corona. Contrary to previous…

太阳与恒星天体物理 · 物理学 2015-06-04 Chun Xia , P. F. Chen , Rony Keppens

High-resolution echelle spectra taken with the 6-m telescope in 2003-2011 are used to study features of the optical spectrum and the velocity field in the atmosphere of the semiregular variable LN Hya in detail. The weak symmetric…

太阳与恒星天体物理 · 物理学 2015-06-03 Valentina Klochkova , Vladimir Panchuk

We present the detection of a bubble-like cavity traveling through a quiescent prominence. The H-alpha emission in the cavity is >16 times smaller than in its surroundings. The cavity propagates almost with the phase-velocity of MHD…

太阳与恒星天体物理 · 物理学 2012-10-29 G. Stellmacher , E. Wiehr

Solar prominences are cool, dense stable structures routinely observed in the corona. Prominences are often ejected from the Sun via coronal mass ejections (CMEs). However, they are rarely detected in a cool, low-ionized state within CMEs…

The triggering process for coronal mass ejections (CME) in the solar atmosphere is not fully understood. We use observations from different spacecraft at several wavelengths to detect an instability process for a prominence/filament with a…

太阳与恒星天体物理 · 物理学 2021-10-05 Z. M. Vashalomidze , T. V. Zaqarashvili , V. D. Kukhianidze , G. T. Ramishvili

Mass loss rates for the tenuous, hot winds of cool stars are extremely difficult to measure, yet they are a crucial ingredient in the stars' rotational evolution. We present a new method for measuring these mass loss rates in young,…

太阳与恒星天体物理 · 物理学 2018-11-06 Moira Jardine , Andrew Collier Cameron